Stevanović, Sanja

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Authority KeyName Variants
orcid::0000-0003-2157-5754
  • Stevanović, Sanja (122)
  • Terzić, Sanja (6)
Projects
Ministry of Education, Science and Technological Development, Republic of Serbia, Grant no. 451-03-68/2020-14/200026 (University of Belgrade, Institute of Chemistry, Technology and Metallurgy - IChTM) AdCatFC - Advanced Catalysts for Low Temperature Fuel Cells: From Model System to Sustainable Catalysts
New approach in designing materials for energy conversion and energy storage systems Synthesis, processing and applications of nanostructured multifunctional materials with defined properties
Ministry of Education, Science and Technological Development, Republic of Serbia, Grant no. 451-03-68/2020-14/200135 (University of Belgrade, Faculty of Technology and Metallurgy) Study of the Synthesis, Structure and Activity of Natural and Synthetic Organic Compounds
Novi materijali za primenu u gorivim spregovima sa polimernom membranom Electrochemical synthesis and characterization of nanostructured functional materials for application in new technologies
Ministry of Education, Science and Technological Development, Republic of Serbia, Grant no. 451-03-68/2020-14/200287 (Innovation Center of the Faculty of Technology and Metallurgy) Serbian Academy of Sciences and Arts - F-141
Development, characterization and application nanostructured and composite electrocatalysts and interactive supports for fuel cells and water electrolysis Directed synthesis, structure and properties of multifunctional materials
COST Action - COST-STSM-MP1407-35830 Synthesis and characterization of novel functional polymers and polymeric nanocomposites
Ministry of Education, Science and Technological Development, Republic of Serbia, Grant no. 451-03-68/2020-14/200175 (Institute of Technical Sciences of SASA, Belgrade) Synthesis, processing and characterization of nanostructured materials for application in the field of energy, mechanical engineering, environmental protection and biomedicine
Elektrohemijske karakteristike oksidnih i polimernih prevlaka na modifikovanim površinama metala Jozef Stefan Institute, Ljubljana, Slovenia - 451-03-3095/2014-09/26
COST Action MP1407 Danish Center for Scientific Computing
Danish Council for Technology and Innovation's FTP program Grant Agency of the Czech Republic - 106/08/1440
Horizon 2020 research and innovation programme under grant agreement No 870292 (BioICEP) Microbial diversity study and characterization of beneficial environmental microorganisms
Ministry of Education, Science and Technological Development, Republic of Serbia, Grant no. 451-03-68/2020-14/200017 (University of Belgrade, Institute of Nuclear Sciences 'Vinča', Belgrade-Vinča) Ministry of Education, Science and Technological Development, Republic of Serbia, Grant no. 451-03-68/2020-14/200042 (University of Belgrade, Institute of Molecular Genetics and Genetic Engineering)
Ministry of Education, Science and Technological Development, Republic of Serbia, Grant no. 451-03-68/2020-14/200168 (University of Belgrade, Faculty of Chemistry) Functional, Functionalized and Advanced Nanomaterials
Novel encapsulation and enzyme technologies for designing of new biocatalysts and biologically active compounds targeting enhancement of food quality, safety and competitiveness Nanostrukturni neoksidni keramički i karbonski materijali i njihovi kompoziti

Author's Bibliography

MXene-supported platinum catalyst for effective methanol electrooxidation

Stevanović, Sanja; Milošević, Dragana; Pergal, Marija; Pešić, Ivan; Tripković, Dušan; Rakočević, Lazar; Maksimović, Vesna

(Serbian Chemical Society, 2024)

TY  - CONF
AU  - Stevanović, Sanja
AU  - Milošević, Dragana
AU  - Pergal, Marija
AU  - Pešić, Ivan
AU  - Tripković, Dušan
AU  - Rakočević, Lazar
AU  - Maksimović, Vesna
PY  - 2024
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/7698
AB  - In recent years, direct methanol fuel cells (DMFC) as renewable energy sources are increasingly considered one of
the most environmentally friendly and promising alternatives for meeting growing energy needs. Although some
DMFC technologies are already commercially available there are still several challenges that need to be improved
for successful commercialization of DMFC. The biggest challenges are how to overcome the high cost of Pt-based
catalysts used in fuel cell reactions, the high catalyst loading required for methanol anodic oxidation reaction,
poisoning of Pt catalysts with CO interemdiers during methanol electro-oxidation, methanol crossover issues, and
most significantly long-term catalyst durability. One of the main reasons for agglomeration and detachment of
platinum nanoparticles from the catalyst support is degradation of the support due to poor oxidation stability, i.e.
non-resistance to electrochemical degradation in extremely difficult conditions in the working environment of fuel
cells. Recent studies have shown that MXenes can be stable and promising support for Pt nanoparticles with
improved reaction kinetics for methanol electro-oxidation reaction. MXenes, a rapidly developing family of twodimensional layered materials, has shown great potential for use in energy conversion and storage technologies
due to its high specific surface area, good resistance to electrochemical corrosion, strong interaction with metal
support and also enhanced electrical conductivity. For this reason, MXenes may find use as a catalyst support
material for anode processes in fuel cells. This is mainly contributed by the composition of MXenes since they have
various functional groups and metal nitride or metal carbonitride materials. The chemical formula of MXenes is
Mn+1XnTn, where M represents transition metals, X represents C/N and T represents chemical functional groups such
as –OH, -O, and –F groups on the MXene surface.
In this research, platinum nanoparticles deposited on MXenes were synthesized by the microwave-assisted polyol
method. The electrochemical behaviour of the synthesized catalyst was investigated by cyclic voltammetry, the
electro-oxidation of adsorbed CO, and hronoamperometric method. The physicochemical properties of prepared
catalysts were characterized by X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS). The high
catalytic activity of the Pt/MX catalyst was achieved thanks to the well-balanced conditions of the microwave
synthesis, as well as the choice of MXene as the catalyst support.
PB  - Serbian Chemical Society
C3  - 9th Regional Symposium on Electrochemistry - South-East Europe, Book of Abstracts, June 3-7, 2024, Novi Sad, Serbia
T1  - MXene-supported platinum catalyst for effective methanol electrooxidation
SP  - 92
EP  - 92
DO  - 10.5281/zenodo.11194247
ER  - 
@conference{
author = "Stevanović, Sanja and Milošević, Dragana and Pergal, Marija and Pešić, Ivan and Tripković, Dušan and Rakočević, Lazar and Maksimović, Vesna",
year = "2024",
abstract = "In recent years, direct methanol fuel cells (DMFC) as renewable energy sources are increasingly considered one of
the most environmentally friendly and promising alternatives for meeting growing energy needs. Although some
DMFC technologies are already commercially available there are still several challenges that need to be improved
for successful commercialization of DMFC. The biggest challenges are how to overcome the high cost of Pt-based
catalysts used in fuel cell reactions, the high catalyst loading required for methanol anodic oxidation reaction,
poisoning of Pt catalysts with CO interemdiers during methanol electro-oxidation, methanol crossover issues, and
most significantly long-term catalyst durability. One of the main reasons for agglomeration and detachment of
platinum nanoparticles from the catalyst support is degradation of the support due to poor oxidation stability, i.e.
non-resistance to electrochemical degradation in extremely difficult conditions in the working environment of fuel
cells. Recent studies have shown that MXenes can be stable and promising support for Pt nanoparticles with
improved reaction kinetics for methanol electro-oxidation reaction. MXenes, a rapidly developing family of twodimensional layered materials, has shown great potential for use in energy conversion and storage technologies
due to its high specific surface area, good resistance to electrochemical corrosion, strong interaction with metal
support and also enhanced electrical conductivity. For this reason, MXenes may find use as a catalyst support
material for anode processes in fuel cells. This is mainly contributed by the composition of MXenes since they have
various functional groups and metal nitride or metal carbonitride materials. The chemical formula of MXenes is
Mn+1XnTn, where M represents transition metals, X represents C/N and T represents chemical functional groups such
as –OH, -O, and –F groups on the MXene surface.
In this research, platinum nanoparticles deposited on MXenes were synthesized by the microwave-assisted polyol
method. The electrochemical behaviour of the synthesized catalyst was investigated by cyclic voltammetry, the
electro-oxidation of adsorbed CO, and hronoamperometric method. The physicochemical properties of prepared
catalysts were characterized by X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS). The high
catalytic activity of the Pt/MX catalyst was achieved thanks to the well-balanced conditions of the microwave
synthesis, as well as the choice of MXene as the catalyst support.",
publisher = "Serbian Chemical Society",
journal = "9th Regional Symposium on Electrochemistry - South-East Europe, Book of Abstracts, June 3-7, 2024, Novi Sad, Serbia",
title = "MXene-supported platinum catalyst for effective methanol electrooxidation",
pages = "92-92",
doi = "10.5281/zenodo.11194247"
}
Stevanović, S., Milošević, D., Pergal, M., Pešić, I., Tripković, D., Rakočević, L.,& Maksimović, V.. (2024). MXene-supported platinum catalyst for effective methanol electrooxidation. in 9th Regional Symposium on Electrochemistry - South-East Europe, Book of Abstracts, June 3-7, 2024, Novi Sad, Serbia
Serbian Chemical Society., 92-92.
https://doi.org/10.5281/zenodo.11194247
Stevanović S, Milošević D, Pergal M, Pešić I, Tripković D, Rakočević L, Maksimović V. MXene-supported platinum catalyst for effective methanol electrooxidation. in 9th Regional Symposium on Electrochemistry - South-East Europe, Book of Abstracts, June 3-7, 2024, Novi Sad, Serbia. 2024;:92-92.
doi:10.5281/zenodo.11194247 .
Stevanović, Sanja, Milošević, Dragana, Pergal, Marija, Pešić, Ivan, Tripković, Dušan, Rakočević, Lazar, Maksimović, Vesna, "MXene-supported platinum catalyst for effective methanol electrooxidation" in 9th Regional Symposium on Electrochemistry - South-East Europe, Book of Abstracts, June 3-7, 2024, Novi Sad, Serbia (2024):92-92,
https://doi.org/10.5281/zenodo.11194247 . .

Microwave-assisted polyol synthesis of Pt/MXene catalyst for the methanol oxidation reaction

Stevanović, Sanja; Milošević, Dragana; Pergal, Marija; Pešić, Ivan; Tripković, Dušan; Rakočević, Lazar; Maksimović, Vesna

(Serbian society of corrosion and materials protection (UISKOZAM), 2024)

TY  - CONF
AU  - Stevanović, Sanja
AU  - Milošević, Dragana
AU  - Pergal, Marija
AU  - Pešić, Ivan
AU  - Tripković, Dušan
AU  - Rakočević, Lazar
AU  - Maksimović, Vesna
PY  - 2024
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/7689
AB  - Recent years indicate a significant increase in interest in MXene-based composite hybrid
nanostructures because of their potential uses as catalyst supports for enhanced electrochemical
performance in direct alcohol fuel cells. MXenes are a new family of 2D materials with the general
formula of Mn+1XnTn, where M represents transition metals, X represents C/N and T represents
chemical functional groups such as –OH, -O, and –F groups on the MXene surface. They possess
high specific surface area, good resistance to electrochemical corrosion, strong interaction with
metal support i.e. large redox-active surface area, exceptional mechanical properties, rich surface
chemistries and enhanced electrical conductivity. All these qualities make them good candidates as
catalyst support material for anode processes in fuel cells. In this study, we present an approach for
successfully synthesizing platinum nanocatalysts with MXenes as support. Toward this goal,
Pt/MXene catalyst will be synthesised by the microwave-assisted polyol method. The electrochemical
behavior of the synthesized catalyst was investigated by cyclic voltammetry, the electro-oxidation of
adsorbed CO, and the chronoamperometry method. The physicochemical properties of prepared
catalysts were characterized by X-ray diffraction (XRD) and X-ray Photoelectron Spectroscopy
(XPS). The high catalytic activity of the Pt/MX catalyst for the methanol electrooxidation reaction
and good electrochemical stability was achieved thanks to thoroughly balanced conditions during
the microwave synthesis, as well as by choosing MXene as the catalyst support.
PB  - Serbian society of corrosion and materials protection (UISKOZAM)
C3  - XXV YuCorr International Conference, Proceedings, May 28-31, 2024, Divčibare, Serbia
T1  - Microwave-assisted polyol synthesis of Pt/MXene catalyst for the methanol oxidation reaction
SP  - 109
EP  - 109
UR  - https://hdl.handle.net/21.15107/rcub_cer_7689
ER  - 
@conference{
author = "Stevanović, Sanja and Milošević, Dragana and Pergal, Marija and Pešić, Ivan and Tripković, Dušan and Rakočević, Lazar and Maksimović, Vesna",
year = "2024",
abstract = "Recent years indicate a significant increase in interest in MXene-based composite hybrid
nanostructures because of their potential uses as catalyst supports for enhanced electrochemical
performance in direct alcohol fuel cells. MXenes are a new family of 2D materials with the general
formula of Mn+1XnTn, where M represents transition metals, X represents C/N and T represents
chemical functional groups such as –OH, -O, and –F groups on the MXene surface. They possess
high specific surface area, good resistance to electrochemical corrosion, strong interaction with
metal support i.e. large redox-active surface area, exceptional mechanical properties, rich surface
chemistries and enhanced electrical conductivity. All these qualities make them good candidates as
catalyst support material for anode processes in fuel cells. In this study, we present an approach for
successfully synthesizing platinum nanocatalysts with MXenes as support. Toward this goal,
Pt/MXene catalyst will be synthesised by the microwave-assisted polyol method. The electrochemical
behavior of the synthesized catalyst was investigated by cyclic voltammetry, the electro-oxidation of
adsorbed CO, and the chronoamperometry method. The physicochemical properties of prepared
catalysts were characterized by X-ray diffraction (XRD) and X-ray Photoelectron Spectroscopy
(XPS). The high catalytic activity of the Pt/MX catalyst for the methanol electrooxidation reaction
and good electrochemical stability was achieved thanks to thoroughly balanced conditions during
the microwave synthesis, as well as by choosing MXene as the catalyst support.",
publisher = "Serbian society of corrosion and materials protection (UISKOZAM)",
journal = "XXV YuCorr International Conference, Proceedings, May 28-31, 2024, Divčibare, Serbia",
title = "Microwave-assisted polyol synthesis of Pt/MXene catalyst for the methanol oxidation reaction",
pages = "109-109",
url = "https://hdl.handle.net/21.15107/rcub_cer_7689"
}
Stevanović, S., Milošević, D., Pergal, M., Pešić, I., Tripković, D., Rakočević, L.,& Maksimović, V.. (2024). Microwave-assisted polyol synthesis of Pt/MXene catalyst for the methanol oxidation reaction. in XXV YuCorr International Conference, Proceedings, May 28-31, 2024, Divčibare, Serbia
Serbian society of corrosion and materials protection (UISKOZAM)., 109-109.
https://hdl.handle.net/21.15107/rcub_cer_7689
Stevanović S, Milošević D, Pergal M, Pešić I, Tripković D, Rakočević L, Maksimović V. Microwave-assisted polyol synthesis of Pt/MXene catalyst for the methanol oxidation reaction. in XXV YuCorr International Conference, Proceedings, May 28-31, 2024, Divčibare, Serbia. 2024;:109-109.
https://hdl.handle.net/21.15107/rcub_cer_7689 .
Stevanović, Sanja, Milošević, Dragana, Pergal, Marija, Pešić, Ivan, Tripković, Dušan, Rakočević, Lazar, Maksimović, Vesna, "Microwave-assisted polyol synthesis of Pt/MXene catalyst for the methanol oxidation reaction" in XXV YuCorr International Conference, Proceedings, May 28-31, 2024, Divčibare, Serbia (2024):109-109,
https://hdl.handle.net/21.15107/rcub_cer_7689 .

Morphology and structure of electrolytically produced zinc dendrites from the alkaline electrolyte

Nikolić, Nebojša D.; Lović, Jelena; Maksimović, Vesna; Vuković, Nikola; Stevanović, Sanja

(Serbian Chemical Society, 2024)

TY  - CONF
AU  - Nikolić, Nebojša D.
AU  - Lović, Jelena
AU  - Maksimović, Vesna
AU  - Vuković, Nikola
AU  - Stevanović, Sanja
PY  - 2024
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/7643
AB  - The alkaline electrolytes of zinc are widely used in a Zn-air secondary batteries which represent promising candidate for energy storage with many advantages relative to the other types, such as Li-air, Al-air, and Mg-air batteries. These advantages are related with an abundance of Zn, low toxicity, and low cost, as well as by the fact that Zn possess a relatively high specific energy density. One of the largest problems in a development of Zn-air batteries is dendritic growth caused by the uneven deposition of zinc in the charging process. The solving of this problem implies the good knowledge of all phenomena related with Zn deposition, and regarding it, this study aims to establish a correlation between morphology and structure of electrolytically produced Zn irregular forms, especially Zn dendrites.
PB  - Serbian Chemical Society
C3  - Book of Abstracts, 9th Regional Symposium on Electrochemistry - South-East Europe, June 3-7, 2024, Novi Sad, Serbia
T1  - Morphology and structure of electrolytically produced zinc dendrites from the alkaline electrolyte
SP  - 97
EP  - 97
DO  - 10.5281/zenodo.11194247
ER  - 
@conference{
author = "Nikolić, Nebojša D. and Lović, Jelena and Maksimović, Vesna and Vuković, Nikola and Stevanović, Sanja",
year = "2024",
abstract = "The alkaline electrolytes of zinc are widely used in a Zn-air secondary batteries which represent promising candidate for energy storage with many advantages relative to the other types, such as Li-air, Al-air, and Mg-air batteries. These advantages are related with an abundance of Zn, low toxicity, and low cost, as well as by the fact that Zn possess a relatively high specific energy density. One of the largest problems in a development of Zn-air batteries is dendritic growth caused by the uneven deposition of zinc in the charging process. The solving of this problem implies the good knowledge of all phenomena related with Zn deposition, and regarding it, this study aims to establish a correlation between morphology and structure of electrolytically produced Zn irregular forms, especially Zn dendrites.",
publisher = "Serbian Chemical Society",
journal = "Book of Abstracts, 9th Regional Symposium on Electrochemistry - South-East Europe, June 3-7, 2024, Novi Sad, Serbia",
title = "Morphology and structure of electrolytically produced zinc dendrites from the alkaline electrolyte",
pages = "97-97",
doi = "10.5281/zenodo.11194247"
}
Nikolić, N. D., Lović, J., Maksimović, V., Vuković, N.,& Stevanović, S.. (2024). Morphology and structure of electrolytically produced zinc dendrites from the alkaline electrolyte. in Book of Abstracts, 9th Regional Symposium on Electrochemistry - South-East Europe, June 3-7, 2024, Novi Sad, Serbia
Serbian Chemical Society., 97-97.
https://doi.org/10.5281/zenodo.11194247
Nikolić ND, Lović J, Maksimović V, Vuković N, Stevanović S. Morphology and structure of electrolytically produced zinc dendrites from the alkaline electrolyte. in Book of Abstracts, 9th Regional Symposium on Electrochemistry - South-East Europe, June 3-7, 2024, Novi Sad, Serbia. 2024;:97-97.
doi:10.5281/zenodo.11194247 .
Nikolić, Nebojša D., Lović, Jelena, Maksimović, Vesna, Vuković, Nikola, Stevanović, Sanja, "Morphology and structure of electrolytically produced zinc dendrites from the alkaline electrolyte" in Book of Abstracts, 9th Regional Symposium on Electrochemistry - South-East Europe, June 3-7, 2024, Novi Sad, Serbia (2024):97-97,
https://doi.org/10.5281/zenodo.11194247 . .

Designing of the Shape of Zinc particles by Variation of Electrolysis Conditions

Nikolić, Nebojša D.; Lović, Jelena; Vuković, Nikola; Stevanović, Sanja

(Serbian society of corrosion and materials protection (UISKOZAM), 2024)

TY  - CONF
AU  - Nikolić, Nebojša D.
AU  - Lović, Jelena
AU  - Vuković, Nikola
AU  - Stevanović, Sanja
PY  - 2024
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/7665
AB  - Zinc-air batteries belong to the group of green and sustainable energy storage systems, and as such, they attract a huge attention of both academic and technological communities. For this system, the alkaline electrolytes of zinc with high concentrations of ZnO and KOH are used. Morphology of zinc electrodeposits is characterized by the scanning electron microscopy (SEM) technique, and it was found that it depended on an overpotential of the electrodeposition with a strong contribution of a length of the electrodeposition time on the final shape. Variety of morphological shapes was observed: irregular and regular grains including those hexagonal shape were predominately formed at the overpotential belonging to the plateau of the limiting diffusion current density. The compact both regular and irregular dendrites were formed at this overpotential with the longer electrodeposition time. The 2D (two-dimensional) and 3D (three-dimensional) dendrites were formed at overpotentials outside the plateau of the limiting diffusion current density, in the zone of the rapid growth of the current density with the increase of the overpotential. In this zone, hydrogen evolution reaction as the second reaction to Zn electrolysis at high overpotentials started to take place. It is manifested by the appearance of craters on the surface of the electrode, which originate from detached hydrogen bubbles. All morpholical forms were explained and discussed applying the basic laws of electrocrystallization.
PB  - Serbian society of corrosion and materials protection (UISKOZAM)
C3  - Proceedings, XXV YuCorr, International conference, Meeting Point of the Science and Practice in the Fields of Corrosion, Materials and Environmental Protection, May 28-31, 2024, Divčibare, Serbia
T1  - Designing of the Shape of Zinc particles by Variation of Electrolysis Conditions
SP  - 115
EP  - 115
UR  - https://hdl.handle.net/21.15107/rcub_cer_7665
ER  - 
@conference{
author = "Nikolić, Nebojša D. and Lović, Jelena and Vuković, Nikola and Stevanović, Sanja",
year = "2024",
abstract = "Zinc-air batteries belong to the group of green and sustainable energy storage systems, and as such, they attract a huge attention of both academic and technological communities. For this system, the alkaline electrolytes of zinc with high concentrations of ZnO and KOH are used. Morphology of zinc electrodeposits is characterized by the scanning electron microscopy (SEM) technique, and it was found that it depended on an overpotential of the electrodeposition with a strong contribution of a length of the electrodeposition time on the final shape. Variety of morphological shapes was observed: irregular and regular grains including those hexagonal shape were predominately formed at the overpotential belonging to the plateau of the limiting diffusion current density. The compact both regular and irregular dendrites were formed at this overpotential with the longer electrodeposition time. The 2D (two-dimensional) and 3D (three-dimensional) dendrites were formed at overpotentials outside the plateau of the limiting diffusion current density, in the zone of the rapid growth of the current density with the increase of the overpotential. In this zone, hydrogen evolution reaction as the second reaction to Zn electrolysis at high overpotentials started to take place. It is manifested by the appearance of craters on the surface of the electrode, which originate from detached hydrogen bubbles. All morpholical forms were explained and discussed applying the basic laws of electrocrystallization.",
publisher = "Serbian society of corrosion and materials protection (UISKOZAM)",
journal = "Proceedings, XXV YuCorr, International conference, Meeting Point of the Science and Practice in the Fields of Corrosion, Materials and Environmental Protection, May 28-31, 2024, Divčibare, Serbia",
title = "Designing of the Shape of Zinc particles by Variation of Electrolysis Conditions",
pages = "115-115",
url = "https://hdl.handle.net/21.15107/rcub_cer_7665"
}
Nikolić, N. D., Lović, J., Vuković, N.,& Stevanović, S.. (2024). Designing of the Shape of Zinc particles by Variation of Electrolysis Conditions. in Proceedings, XXV YuCorr, International conference, Meeting Point of the Science and Practice in the Fields of Corrosion, Materials and Environmental Protection, May 28-31, 2024, Divčibare, Serbia
Serbian society of corrosion and materials protection (UISKOZAM)., 115-115.
https://hdl.handle.net/21.15107/rcub_cer_7665
Nikolić ND, Lović J, Vuković N, Stevanović S. Designing of the Shape of Zinc particles by Variation of Electrolysis Conditions. in Proceedings, XXV YuCorr, International conference, Meeting Point of the Science and Practice in the Fields of Corrosion, Materials and Environmental Protection, May 28-31, 2024, Divčibare, Serbia. 2024;:115-115.
https://hdl.handle.net/21.15107/rcub_cer_7665 .
Nikolić, Nebojša D., Lović, Jelena, Vuković, Nikola, Stevanović, Sanja, "Designing of the Shape of Zinc particles by Variation of Electrolysis Conditions" in Proceedings, XXV YuCorr, International conference, Meeting Point of the Science and Practice in the Fields of Corrosion, Materials and Environmental Protection, May 28-31, 2024, Divčibare, Serbia (2024):115-115,
https://hdl.handle.net/21.15107/rcub_cer_7665 .

Design of Advanced Thin-Film Catalysts for Electrooxidation of Formic Acid

Tripković, Dušan; Milošević, Dragana; Stevanović, Sanja; Popović, Ksenija; Jovanović, Vladislava; Lopes, Pietro; Farinazzo Bergamo Dias Martins, Pedro; Stamenković, Vojislav; Strmcnik, Dusan

(American Chemical Society, 2024)

TY  - JOUR
AU  - Tripković, Dušan
AU  - Milošević, Dragana
AU  - Stevanović, Sanja
AU  - Popović, Ksenija
AU  - Jovanović, Vladislava
AU  - Lopes, Pietro
AU  - Farinazzo Bergamo Dias Martins, Pedro
AU  - Stamenković, Vojislav
AU  - Strmcnik, Dusan
PY  - 2024
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/7701
AB  - Successful development of catalysts for electrochemical formic
acid oxidation (FAO) requires fnding an optimal balance between catalytic
performance (activity, stability, and selectivity) and catalyst cost. While
platinum is one of the most active catalyst materials for FAO, it suffers from
performance loss at low overpotentials due to poisoning with CO, which is
one of the intermediates formed in the so-called indirect path of FAO. In this
work, we explored the synergistic effects of the supporting material and
annealing temperature on the performance of Pt thin flms for FAO in acidic
media. Compared to the as-prepared Pt flms, the annealed flms show up to
5-fold and 15-fold improvement for FAO on Pt@Ni and Pt@Cr, respectively.
While the most active Pt@Ni thin flm shows the lowest stability, the most
active Pt@Cr thin flm is also the most stable, challenging conventional tradeoffs in electrocatalysis and providing a promising candidate for FAO
nanocatalyst synthesis.
PB  - American Chemical Society
T2  - ACS Catalysis
T1  - Design of Advanced Thin-Film Catalysts for Electrooxidation of Formic Acid
VL  - 14
IS  - 4
SP  - 2380
EP  - 2387
DO  - 10.1021/acscatal.3c05520
ER  - 
@article{
author = "Tripković, Dušan and Milošević, Dragana and Stevanović, Sanja and Popović, Ksenija and Jovanović, Vladislava and Lopes, Pietro and Farinazzo Bergamo Dias Martins, Pedro and Stamenković, Vojislav and Strmcnik, Dusan",
year = "2024",
abstract = "Successful development of catalysts for electrochemical formic
acid oxidation (FAO) requires fnding an optimal balance between catalytic
performance (activity, stability, and selectivity) and catalyst cost. While
platinum is one of the most active catalyst materials for FAO, it suffers from
performance loss at low overpotentials due to poisoning with CO, which is
one of the intermediates formed in the so-called indirect path of FAO. In this
work, we explored the synergistic effects of the supporting material and
annealing temperature on the performance of Pt thin flms for FAO in acidic
media. Compared to the as-prepared Pt flms, the annealed flms show up to
5-fold and 15-fold improvement for FAO on Pt@Ni and Pt@Cr, respectively.
While the most active Pt@Ni thin flm shows the lowest stability, the most
active Pt@Cr thin flm is also the most stable, challenging conventional tradeoffs in electrocatalysis and providing a promising candidate for FAO
nanocatalyst synthesis.",
publisher = "American Chemical Society",
journal = "ACS Catalysis",
title = "Design of Advanced Thin-Film Catalysts for Electrooxidation of Formic Acid",
volume = "14",
number = "4",
pages = "2380-2387",
doi = "10.1021/acscatal.3c05520"
}
Tripković, D., Milošević, D., Stevanović, S., Popović, K., Jovanović, V., Lopes, P., Farinazzo Bergamo Dias Martins, P., Stamenković, V.,& Strmcnik, D.. (2024). Design of Advanced Thin-Film Catalysts for Electrooxidation of Formic Acid. in ACS Catalysis
American Chemical Society., 14(4), 2380-2387.
https://doi.org/10.1021/acscatal.3c05520
Tripković D, Milošević D, Stevanović S, Popović K, Jovanović V, Lopes P, Farinazzo Bergamo Dias Martins P, Stamenković V, Strmcnik D. Design of Advanced Thin-Film Catalysts for Electrooxidation of Formic Acid. in ACS Catalysis. 2024;14(4):2380-2387.
doi:10.1021/acscatal.3c05520 .
Tripković, Dušan, Milošević, Dragana, Stevanović, Sanja, Popović, Ksenija, Jovanović, Vladislava, Lopes, Pietro, Farinazzo Bergamo Dias Martins, Pedro, Stamenković, Vojislav, Strmcnik, Dusan, "Design of Advanced Thin-Film Catalysts for Electrooxidation of Formic Acid" in ACS Catalysis, 14, no. 4 (2024):2380-2387,
https://doi.org/10.1021/acscatal.3c05520 . .

Enhanced Pt@Ni catalysts obtained by galvanic displacement method for successful methanol electrooxidation

Milošević, Dragana; Stevanović, Sanja; Tripković, Dušan

(Serbian society of corrosion and materials protection (UISKOZAM), 2024)

TY  - CONF
AU  - Milošević, Dragana
AU  - Stevanović, Sanja
AU  - Tripković, Dušan
PY  - 2024
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/7688
AB  - The successful development of catalysts for the electrooxidation of small organic molecules, such as
methanol, requires finding an optimal balance between the catalyst's cost and its activity/stability.
Thus far, platinum (Pt) remains one of the best choice for methanol electrooxidation, despite its high
costs, limited supply and tendency to poison with carbon monoxide (CO).
In this work, the synergistic effect of the supporting material and annealing temperature in different
atmospheres on the performance of the Pt@Ni catalyst was examined. The thin film Pt@Ni catalyst
was obtained through spontaneous galvanic displacement by placing a drop of hexachloroplatinic
acid onto the Ni support. To mitigate platinum susceptibility to poisoning species such as CO and
enhance the catalytic efficiency of Pt@Ni at low potentials in methanol oxidation, the as-prepared
catalyst was modified using controlled thermal treatment in a reductive atmosphere containing 5 %
H2 and in an inert atmosphere (N2). The activity of the catalysts was tested in the methanol oxidation
reaction, while the influence of thermal treatment on the surface morphology was monitored using
atomic force microscopy (AFM).
Preliminary results have indicated that the galvanic displacement method produces ultra-thin film
Pt@Ni catalysts, which were further enhanced through controlled thermal treatment. The catalysts
annealed in the inert atmosphere demonstrated superior activity compared to the as prepared and
catalyst annealed in the reducing atmosphere.
PB  - Serbian society of corrosion and materials protection (UISKOZAM)
C3  - XXV YuCorr International Conference, Proceedings, May 28-31, 2024, Divčibare, Serbia
T1  - Enhanced Pt@Ni catalysts obtained by galvanic displacement method for successful methanol electrooxidation
SP  - 46
EP  - 46
UR  - https://hdl.handle.net/21.15107/rcub_cer_7688
ER  - 
@conference{
author = "Milošević, Dragana and Stevanović, Sanja and Tripković, Dušan",
year = "2024",
abstract = "The successful development of catalysts for the electrooxidation of small organic molecules, such as
methanol, requires finding an optimal balance between the catalyst's cost and its activity/stability.
Thus far, platinum (Pt) remains one of the best choice for methanol electrooxidation, despite its high
costs, limited supply and tendency to poison with carbon monoxide (CO).
In this work, the synergistic effect of the supporting material and annealing temperature in different
atmospheres on the performance of the Pt@Ni catalyst was examined. The thin film Pt@Ni catalyst
was obtained through spontaneous galvanic displacement by placing a drop of hexachloroplatinic
acid onto the Ni support. To mitigate platinum susceptibility to poisoning species such as CO and
enhance the catalytic efficiency of Pt@Ni at low potentials in methanol oxidation, the as-prepared
catalyst was modified using controlled thermal treatment in a reductive atmosphere containing 5 %
H2 and in an inert atmosphere (N2). The activity of the catalysts was tested in the methanol oxidation
reaction, while the influence of thermal treatment on the surface morphology was monitored using
atomic force microscopy (AFM).
Preliminary results have indicated that the galvanic displacement method produces ultra-thin film
Pt@Ni catalysts, which were further enhanced through controlled thermal treatment. The catalysts
annealed in the inert atmosphere demonstrated superior activity compared to the as prepared and
catalyst annealed in the reducing atmosphere.",
publisher = "Serbian society of corrosion and materials protection (UISKOZAM)",
journal = "XXV YuCorr International Conference, Proceedings, May 28-31, 2024, Divčibare, Serbia",
title = "Enhanced Pt@Ni catalysts obtained by galvanic displacement method for successful methanol electrooxidation",
pages = "46-46",
url = "https://hdl.handle.net/21.15107/rcub_cer_7688"
}
Milošević, D., Stevanović, S.,& Tripković, D.. (2024). Enhanced Pt@Ni catalysts obtained by galvanic displacement method for successful methanol electrooxidation. in XXV YuCorr International Conference, Proceedings, May 28-31, 2024, Divčibare, Serbia
Serbian society of corrosion and materials protection (UISKOZAM)., 46-46.
https://hdl.handle.net/21.15107/rcub_cer_7688
Milošević D, Stevanović S, Tripković D. Enhanced Pt@Ni catalysts obtained by galvanic displacement method for successful methanol electrooxidation. in XXV YuCorr International Conference, Proceedings, May 28-31, 2024, Divčibare, Serbia. 2024;:46-46.
https://hdl.handle.net/21.15107/rcub_cer_7688 .
Milošević, Dragana, Stevanović, Sanja, Tripković, Dušan, "Enhanced Pt@Ni catalysts obtained by galvanic displacement method for successful methanol electrooxidation" in XXV YuCorr International Conference, Proceedings, May 28-31, 2024, Divčibare, Serbia (2024):46-46,
https://hdl.handle.net/21.15107/rcub_cer_7688 .

The design of advanced thin-film catalysts for electrooxidation of formic acid

Tripković, Dušan; Stevanović, Sanja; Milošević, Dragana

(Serbian Chemical Society, 2024)

TY  - CONF
AU  - Tripković, Dušan
AU  - Stevanović, Sanja
AU  - Milošević, Dragana
PY  - 2024
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/7697
AB  - Successful development of catalysts for electrochemical formic acid oxidation (FAO) requires finding an optimal
balance between catalytic performance (activity/stability/selectivity) and the catalyst cost. While platinum is one
of the most active catalyst materials for FAO, it suffers from performance loss at low overpotentials due to
poisoning with CO, which is one of the intermediates formed in the so-called indirect path of FAO.
In this work, we explored the synergistic effects of the supporting material and annealing temperature on the
performance of Pt thin films over Cr support for FAO in acidic media. In an attempt to reduce the proneness of Pt
to poisoning species i.e. CO and improve the catalytic performance of Pt/Cr at low potentials in the formic oxidation
reaction, the as-prepared catalyst was modified using controlled thermal treatment. The influence of thermal
treatment on the surface morphology was monitored using atomic force microscopy (AFM). The catalyst was
electrochemically characterized with cyclic voltammetry and oxidation of CO monolayer, while the performance of
the catalyst was tested in formic acid oxidation reaction.
Based on the obtained results it was concluded that the improved activity on the annealed Pt/Cr system is a
consequence of surface reconstruction of Pt film with predominant (111) orientation. Compared to other facets,
the (111) facet selectively favors the oxidation of HCOOH via the direct path, avoiding the formation of COad at low
potentials. Moreover, the Pt (111) facets offer improved stability of the catalyst compared to the as-prepared
polycrystalline film. Finally, the Cr substrate also experiences improved stability after annealing, presumably due to
the formation of a protective oxide layer. Thus, with the successful choice of the supporting material and annealing
temperature, we were able to create a thin film catalyst with improved activity, selectivity, and stability, challenging
conventional trade-offs in electrocatalysis.
PB  - Serbian Chemical Society
C3  - 9th Regional Symposium on Electrochemistry - South-East Europe, Book of Abstracts, June 3-7, 2024, Novi Sad, Serbia
T1  - The design of advanced thin-film catalysts for electrooxidation of formic acid
SP  - 95
EP  - 95
DO  - 10.5281/zenodo.11194247
ER  - 
@conference{
author = "Tripković, Dušan and Stevanović, Sanja and Milošević, Dragana",
year = "2024",
abstract = "Successful development of catalysts for electrochemical formic acid oxidation (FAO) requires finding an optimal
balance between catalytic performance (activity/stability/selectivity) and the catalyst cost. While platinum is one
of the most active catalyst materials for FAO, it suffers from performance loss at low overpotentials due to
poisoning with CO, which is one of the intermediates formed in the so-called indirect path of FAO.
In this work, we explored the synergistic effects of the supporting material and annealing temperature on the
performance of Pt thin films over Cr support for FAO in acidic media. In an attempt to reduce the proneness of Pt
to poisoning species i.e. CO and improve the catalytic performance of Pt/Cr at low potentials in the formic oxidation
reaction, the as-prepared catalyst was modified using controlled thermal treatment. The influence of thermal
treatment on the surface morphology was monitored using atomic force microscopy (AFM). The catalyst was
electrochemically characterized with cyclic voltammetry and oxidation of CO monolayer, while the performance of
the catalyst was tested in formic acid oxidation reaction.
Based on the obtained results it was concluded that the improved activity on the annealed Pt/Cr system is a
consequence of surface reconstruction of Pt film with predominant (111) orientation. Compared to other facets,
the (111) facet selectively favors the oxidation of HCOOH via the direct path, avoiding the formation of COad at low
potentials. Moreover, the Pt (111) facets offer improved stability of the catalyst compared to the as-prepared
polycrystalline film. Finally, the Cr substrate also experiences improved stability after annealing, presumably due to
the formation of a protective oxide layer. Thus, with the successful choice of the supporting material and annealing
temperature, we were able to create a thin film catalyst with improved activity, selectivity, and stability, challenging
conventional trade-offs in electrocatalysis.",
publisher = "Serbian Chemical Society",
journal = "9th Regional Symposium on Electrochemistry - South-East Europe, Book of Abstracts, June 3-7, 2024, Novi Sad, Serbia",
title = "The design of advanced thin-film catalysts for electrooxidation of formic acid",
pages = "95-95",
doi = "10.5281/zenodo.11194247"
}
Tripković, D., Stevanović, S.,& Milošević, D.. (2024). The design of advanced thin-film catalysts for electrooxidation of formic acid. in 9th Regional Symposium on Electrochemistry - South-East Europe, Book of Abstracts, June 3-7, 2024, Novi Sad, Serbia
Serbian Chemical Society., 95-95.
https://doi.org/10.5281/zenodo.11194247
Tripković D, Stevanović S, Milošević D. The design of advanced thin-film catalysts for electrooxidation of formic acid. in 9th Regional Symposium on Electrochemistry - South-East Europe, Book of Abstracts, June 3-7, 2024, Novi Sad, Serbia. 2024;:95-95.
doi:10.5281/zenodo.11194247 .
Tripković, Dušan, Stevanović, Sanja, Milošević, Dragana, "The design of advanced thin-film catalysts for electrooxidation of formic acid" in 9th Regional Symposium on Electrochemistry - South-East Europe, Book of Abstracts, June 3-7, 2024, Novi Sad, Serbia (2024):95-95,
https://doi.org/10.5281/zenodo.11194247 . .

Polymer‐lipid matrice based on carboxymethyl cellulose/solagum and liposomes for controlled release of folic acid

Batinić, Petar M.; Đorđević, Verica; Obradović, Nataša S.; Krstić, Aleksandar D.; Stevanović, Sanja; Balanč, Bojana; Marković, Smilja; Pjanović, Rada; Mijin, Dušan; Bugarski, Branko

(Wiley, 2023)

TY  - JOUR
AU  - Batinić, Petar M.
AU  - Đorđević, Verica
AU  - Obradović, Nataša S.
AU  - Krstić, Aleksandar D.
AU  - Stevanović, Sanja
AU  - Balanč, Bojana
AU  - Marković, Smilja
AU  - Pjanović, Rada
AU  - Mijin, Dušan
AU  - Bugarski, Branko
PY  - 2023
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6421
AB  - Liposome-encapsulated folic acid was incorporated into the films made from sodium carboxymethyl cellulose (CMC) (2 mas%) and a mixture of carboxymethyl cellulose and solagum (9:1 w/w) using the film-forming cast solution method. Histidine was used to increase solubility for folic acid in liposomes (1-5 mg/ml), and propylene glycol was used as a film plasticizer (2.6 mas%). The obtained films (50-60 µm tick) containing 3.12-20.19 mg of folic acid per gram of film are envisaged to be used as patches for transdermal delivery of folic acid. Therefore, some physical, mechanical, release and structural attributes of the films were scrutinized. Folic acid gave yellow color to the films and contributed to stronger chemical bonds which resulted in improved strength of the film. Liposomes prolonged the release of folic acid from films to 24 h without adverse effects on mechanical properties of the films, but degraded homogeneity of the films, which could be ascribed to its agglomeration within the film matrix as revealed by AFM. According to the release at pH 5.5, the film formulation based on a blend of CMC and solagum containing 3 mg/ml liposome-encapsulated folic acid is recommended from the point of view of release kinetics determined by its solubility.  Practical application: Folic acid is effective in reducing oxidative stress levels in the skin and neutralizing the harmful free radicals and is also essential for various metabolic reactions in the body. However, the limited solubility of folic acid linked with its poor absorption in an organism, low storage stability, short half-life upon oral consumption, specific food preferences of some people, extensive liver metabolism, and pregnancy-induced vomiting point to a large potential in transdermal usage of folic acid. This has motivated us to design new multicomponent polymer-lipid systems as an alternative solution to overcome some of these drawbacks. The results obtained for these multicomponent films pointed to their potential for prolonged release of folic acid to 24 h, which can also be useful for scientists interested in encapsulating similar poorly soluble compounds in CMC patches. The finding can be also valuable information for pharmaceutical manufacturers and scientists worldwide.
PB  - Wiley
T2  - European Journal of Lipid Science and Technology
T1  - Polymer‐lipid matrice based on carboxymethyl cellulose/solagum and liposomes for controlled release of folic acid
SP  - 2200169
DO  - 10.1002/ejlt.202200169
ER  - 
@article{
author = "Batinić, Petar M. and Đorđević, Verica and Obradović, Nataša S. and Krstić, Aleksandar D. and Stevanović, Sanja and Balanč, Bojana and Marković, Smilja and Pjanović, Rada and Mijin, Dušan and Bugarski, Branko",
year = "2023",
abstract = "Liposome-encapsulated folic acid was incorporated into the films made from sodium carboxymethyl cellulose (CMC) (2 mas%) and a mixture of carboxymethyl cellulose and solagum (9:1 w/w) using the film-forming cast solution method. Histidine was used to increase solubility for folic acid in liposomes (1-5 mg/ml), and propylene glycol was used as a film plasticizer (2.6 mas%). The obtained films (50-60 µm tick) containing 3.12-20.19 mg of folic acid per gram of film are envisaged to be used as patches for transdermal delivery of folic acid. Therefore, some physical, mechanical, release and structural attributes of the films were scrutinized. Folic acid gave yellow color to the films and contributed to stronger chemical bonds which resulted in improved strength of the film. Liposomes prolonged the release of folic acid from films to 24 h without adverse effects on mechanical properties of the films, but degraded homogeneity of the films, which could be ascribed to its agglomeration within the film matrix as revealed by AFM. According to the release at pH 5.5, the film formulation based on a blend of CMC and solagum containing 3 mg/ml liposome-encapsulated folic acid is recommended from the point of view of release kinetics determined by its solubility.  Practical application: Folic acid is effective in reducing oxidative stress levels in the skin and neutralizing the harmful free radicals and is also essential for various metabolic reactions in the body. However, the limited solubility of folic acid linked with its poor absorption in an organism, low storage stability, short half-life upon oral consumption, specific food preferences of some people, extensive liver metabolism, and pregnancy-induced vomiting point to a large potential in transdermal usage of folic acid. This has motivated us to design new multicomponent polymer-lipid systems as an alternative solution to overcome some of these drawbacks. The results obtained for these multicomponent films pointed to their potential for prolonged release of folic acid to 24 h, which can also be useful for scientists interested in encapsulating similar poorly soluble compounds in CMC patches. The finding can be also valuable information for pharmaceutical manufacturers and scientists worldwide.",
publisher = "Wiley",
journal = "European Journal of Lipid Science and Technology",
title = "Polymer‐lipid matrice based on carboxymethyl cellulose/solagum and liposomes for controlled release of folic acid",
pages = "2200169",
doi = "10.1002/ejlt.202200169"
}
Batinić, P. M., Đorđević, V., Obradović, N. S., Krstić, A. D., Stevanović, S., Balanč, B., Marković, S., Pjanović, R., Mijin, D.,& Bugarski, B.. (2023). Polymer‐lipid matrice based on carboxymethyl cellulose/solagum and liposomes for controlled release of folic acid. in European Journal of Lipid Science and Technology
Wiley., 2200169.
https://doi.org/10.1002/ejlt.202200169
Batinić PM, Đorđević V, Obradović NS, Krstić AD, Stevanović S, Balanč B, Marković S, Pjanović R, Mijin D, Bugarski B. Polymer‐lipid matrice based on carboxymethyl cellulose/solagum and liposomes for controlled release of folic acid. in European Journal of Lipid Science and Technology. 2023;:2200169.
doi:10.1002/ejlt.202200169 .
Batinić, Petar M., Đorđević, Verica, Obradović, Nataša S., Krstić, Aleksandar D., Stevanović, Sanja, Balanč, Bojana, Marković, Smilja, Pjanović, Rada, Mijin, Dušan, Bugarski, Branko, "Polymer‐lipid matrice based on carboxymethyl cellulose/solagum and liposomes for controlled release of folic acid" in European Journal of Lipid Science and Technology (2023):2200169,
https://doi.org/10.1002/ejlt.202200169 . .
1
1
1

Polymer‐lipid matrice based on carboxymethyl cellulose/solagum and liposomes for controlled release of folic acid

Batinić, Petar M.; Đorđević, Verica; Obradović, Nataša S.; Krstić, Aleksandar D.; Stevanović, Sanja; Balanč, Bojana; Marković, Smilja; Pjanović, Rada; Mijin, Dušan; Bugarski, Branko

(Wiley, 2023)

TY  - JOUR
AU  - Batinić, Petar M.
AU  - Đorđević, Verica
AU  - Obradović, Nataša S.
AU  - Krstić, Aleksandar D.
AU  - Stevanović, Sanja
AU  - Balanč, Bojana
AU  - Marković, Smilja
AU  - Pjanović, Rada
AU  - Mijin, Dušan
AU  - Bugarski, Branko
PY  - 2023
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6422
AB  - Liposome-encapsulated folic acid was incorporated into the films made from sodium carboxymethyl cellulose (CMC) (2 mas%) and a mixture of carboxymethyl cellulose and solagum (9:1 w/w) using the film-forming cast solution method. Histidine was used to increase solubility for folic acid in liposomes (1-5 mg/ml), and propylene glycol was used as a film plasticizer (2.6 mas%). The obtained films (50-60 µm tick) containing 3.12-20.19 mg of folic acid per gram of film are envisaged to be used as patches for transdermal delivery of folic acid. Therefore, some physical, mechanical, release and structural attributes of the films were scrutinized. Folic acid gave yellow color to the films and contributed to stronger chemical bonds which resulted in improved strength of the film. Liposomes prolonged the release of folic acid from films to 24 h without adverse effects on mechanical properties of the films, but degraded homogeneity of the films, which could be ascribed to its agglomeration within the film matrix as revealed by AFM. According to the release at pH 5.5, the film formulation based on a blend of CMC and solagum containing 3 mg/ml liposome-encapsulated folic acid is recommended from the point of view of release kinetics determined by its solubility.  Practical application: Folic acid is effective in reducing oxidative stress levels in the skin and neutralizing the harmful free radicals and is also essential for various metabolic reactions in the body. However, the limited solubility of folic acid linked with its poor absorption in an organism, low storage stability, short half-life upon oral consumption, specific food preferences of some people, extensive liver metabolism, and pregnancy-induced vomiting point to a large potential in transdermal usage of folic acid. This has motivated us to design new multicomponent polymer-lipid systems as an alternative solution to overcome some of these drawbacks. The results obtained for these multicomponent films pointed to their potential for prolonged release of folic acid to 24 h, which can also be useful for scientists interested in encapsulating similar poorly soluble compounds in CMC patches. The finding can be also valuable information for pharmaceutical manufacturers and scientists worldwide.
PB  - Wiley
T2  - European Journal of Lipid Science and Technology
T1  - Polymer‐lipid matrice based on carboxymethyl cellulose/solagum and liposomes for controlled release of folic acid
SP  - 2200169
DO  - 10.1002/ejlt.202200169
ER  - 
@article{
author = "Batinić, Petar M. and Đorđević, Verica and Obradović, Nataša S. and Krstić, Aleksandar D. and Stevanović, Sanja and Balanč, Bojana and Marković, Smilja and Pjanović, Rada and Mijin, Dušan and Bugarski, Branko",
year = "2023",
abstract = "Liposome-encapsulated folic acid was incorporated into the films made from sodium carboxymethyl cellulose (CMC) (2 mas%) and a mixture of carboxymethyl cellulose and solagum (9:1 w/w) using the film-forming cast solution method. Histidine was used to increase solubility for folic acid in liposomes (1-5 mg/ml), and propylene glycol was used as a film plasticizer (2.6 mas%). The obtained films (50-60 µm tick) containing 3.12-20.19 mg of folic acid per gram of film are envisaged to be used as patches for transdermal delivery of folic acid. Therefore, some physical, mechanical, release and structural attributes of the films were scrutinized. Folic acid gave yellow color to the films and contributed to stronger chemical bonds which resulted in improved strength of the film. Liposomes prolonged the release of folic acid from films to 24 h without adverse effects on mechanical properties of the films, but degraded homogeneity of the films, which could be ascribed to its agglomeration within the film matrix as revealed by AFM. According to the release at pH 5.5, the film formulation based on a blend of CMC and solagum containing 3 mg/ml liposome-encapsulated folic acid is recommended from the point of view of release kinetics determined by its solubility.  Practical application: Folic acid is effective in reducing oxidative stress levels in the skin and neutralizing the harmful free radicals and is also essential for various metabolic reactions in the body. However, the limited solubility of folic acid linked with its poor absorption in an organism, low storage stability, short half-life upon oral consumption, specific food preferences of some people, extensive liver metabolism, and pregnancy-induced vomiting point to a large potential in transdermal usage of folic acid. This has motivated us to design new multicomponent polymer-lipid systems as an alternative solution to overcome some of these drawbacks. The results obtained for these multicomponent films pointed to their potential for prolonged release of folic acid to 24 h, which can also be useful for scientists interested in encapsulating similar poorly soluble compounds in CMC patches. The finding can be also valuable information for pharmaceutical manufacturers and scientists worldwide.",
publisher = "Wiley",
journal = "European Journal of Lipid Science and Technology",
title = "Polymer‐lipid matrice based on carboxymethyl cellulose/solagum and liposomes for controlled release of folic acid",
pages = "2200169",
doi = "10.1002/ejlt.202200169"
}
Batinić, P. M., Đorđević, V., Obradović, N. S., Krstić, A. D., Stevanović, S., Balanč, B., Marković, S., Pjanović, R., Mijin, D.,& Bugarski, B.. (2023). Polymer‐lipid matrice based on carboxymethyl cellulose/solagum and liposomes for controlled release of folic acid. in European Journal of Lipid Science and Technology
Wiley., 2200169.
https://doi.org/10.1002/ejlt.202200169
Batinić PM, Đorđević V, Obradović NS, Krstić AD, Stevanović S, Balanč B, Marković S, Pjanović R, Mijin D, Bugarski B. Polymer‐lipid matrice based on carboxymethyl cellulose/solagum and liposomes for controlled release of folic acid. in European Journal of Lipid Science and Technology. 2023;:2200169.
doi:10.1002/ejlt.202200169 .
Batinić, Petar M., Đorđević, Verica, Obradović, Nataša S., Krstić, Aleksandar D., Stevanović, Sanja, Balanč, Bojana, Marković, Smilja, Pjanović, Rada, Mijin, Dušan, Bugarski, Branko, "Polymer‐lipid matrice based on carboxymethyl cellulose/solagum and liposomes for controlled release of folic acid" in European Journal of Lipid Science and Technology (2023):2200169,
https://doi.org/10.1002/ejlt.202200169 . .
1
1
1

Design of Pt-Sn-Zn Nanomaterials for Successful Methanol Electrooxidation Reaction

Milošević, Dragana; Stevanović, Sanja; Tripković, Dušan; Vukašinović, Ivana; Maksimović, Vesna; Ćosović, Vladan; Nikolić, Nebojša D.

(MDPI, 2023)

TY  - JOUR
AU  - Milošević, Dragana
AU  - Stevanović, Sanja
AU  - Tripković, Dušan
AU  - Vukašinović, Ivana
AU  - Maksimović, Vesna
AU  - Ćosović, Vladan
AU  - Nikolić, Nebojša D.
PY  - 2023
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6313
AB  - This work highlights the potential for the synthesis of new PtSnZn catalysts with enhanced efficiency and durability for methanol oxidation reaction (MOR) in low-temperature fuel cells. In this research, PtZn and PtSnZn nanoparticles deposited on high surface area Vulcan XC-72R Carbon support were created by a microwave-assisted polyol method. The electrochemical performances of synthesized catalysts were analyzed by cyclic voltammetry and by the electrooxidation of adsorbed CO and the chronoamperometric method. The physicochemical properties of obtained catalysts were characterized by transmission electron microscopy (TEM), thermogravimetric (TGA) analysis, energy dispersive spectroscopy (EDS) and by X-ray diffraction (XRD). The obtained findings showed the successful synthesis of platinum-based catalysts. It was established that PtSnZn/C and PtZn/C catalysts have high electrocatalytic performance in methanol oxidation reactions. Catalysts stability tests were obtained by chronoamperometry. Stability tests also confirmed decreased poisoning and indicated improved stability and better tolerance to CO-like intermediate species. According to activity and stability measurements, the PtSnZn/C catalyst possesses the best electrochemical properties for the methanol oxidation reaction. The observed great electrocatalytic activity in the methanol oxidation reaction of synthesized catalysts can be attributed to the beneficial effects of microwave synthesis and the well-balanced addition of alloying metals in PtSnZn/C catalysts.
PB  - MDPI
T2  - Materials
T1  - Design of Pt-Sn-Zn Nanomaterials for Successful Methanol Electrooxidation Reaction
VL  - 16
IS  - 13
SP  - 4617
DO  - 10.3390/ma16134617
ER  - 
@article{
author = "Milošević, Dragana and Stevanović, Sanja and Tripković, Dušan and Vukašinović, Ivana and Maksimović, Vesna and Ćosović, Vladan and Nikolić, Nebojša D.",
year = "2023",
abstract = "This work highlights the potential for the synthesis of new PtSnZn catalysts with enhanced efficiency and durability for methanol oxidation reaction (MOR) in low-temperature fuel cells. In this research, PtZn and PtSnZn nanoparticles deposited on high surface area Vulcan XC-72R Carbon support were created by a microwave-assisted polyol method. The electrochemical performances of synthesized catalysts were analyzed by cyclic voltammetry and by the electrooxidation of adsorbed CO and the chronoamperometric method. The physicochemical properties of obtained catalysts were characterized by transmission electron microscopy (TEM), thermogravimetric (TGA) analysis, energy dispersive spectroscopy (EDS) and by X-ray diffraction (XRD). The obtained findings showed the successful synthesis of platinum-based catalysts. It was established that PtSnZn/C and PtZn/C catalysts have high electrocatalytic performance in methanol oxidation reactions. Catalysts stability tests were obtained by chronoamperometry. Stability tests also confirmed decreased poisoning and indicated improved stability and better tolerance to CO-like intermediate species. According to activity and stability measurements, the PtSnZn/C catalyst possesses the best electrochemical properties for the methanol oxidation reaction. The observed great electrocatalytic activity in the methanol oxidation reaction of synthesized catalysts can be attributed to the beneficial effects of microwave synthesis and the well-balanced addition of alloying metals in PtSnZn/C catalysts.",
publisher = "MDPI",
journal = "Materials",
title = "Design of Pt-Sn-Zn Nanomaterials for Successful Methanol Electrooxidation Reaction",
volume = "16",
number = "13",
pages = "4617",
doi = "10.3390/ma16134617"
}
Milošević, D., Stevanović, S., Tripković, D., Vukašinović, I., Maksimović, V., Ćosović, V.,& Nikolić, N. D.. (2023). Design of Pt-Sn-Zn Nanomaterials for Successful Methanol Electrooxidation Reaction. in Materials
MDPI., 16(13), 4617.
https://doi.org/10.3390/ma16134617
Milošević D, Stevanović S, Tripković D, Vukašinović I, Maksimović V, Ćosović V, Nikolić ND. Design of Pt-Sn-Zn Nanomaterials for Successful Methanol Electrooxidation Reaction. in Materials. 2023;16(13):4617.
doi:10.3390/ma16134617 .
Milošević, Dragana, Stevanović, Sanja, Tripković, Dušan, Vukašinović, Ivana, Maksimović, Vesna, Ćosović, Vladan, Nikolić, Nebojša D., "Design of Pt-Sn-Zn Nanomaterials for Successful Methanol Electrooxidation Reaction" in Materials, 16, no. 13 (2023):4617,
https://doi.org/10.3390/ma16134617 . .
1
1

Platinski katalizatori na ugljeničnoj osnovi za efikasnu oksidaciju metanola

Stevanović, Sanja; Milošević, Dragana; Tripković, Dušan; Maksimović, Vesna; Ćosović, Vladan; Nikolić, Nebojša D.; Krstajić Pajić, Mila; Rogan, Jelena

(Srpska akademija nauka i umetnosti, 2023)

TY  - CONF
AU  - Stevanović, Sanja
AU  - Milošević, Dragana
AU  - Tripković, Dušan
AU  - Maksimović, Vesna
AU  - Ćosović, Vladan
AU  - Nikolić, Nebojša D.
AU  - Krstajić Pajić, Mila
AU  - Rogan, Jelena
PY  - 2023
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6327
AB  - Горивне ћелије са метанолом (DMFC) као горивом cу веома перспектпвни извори енергије за стационарне и преносиве електричне уређаје пре свега због своје високе ефикасности и ниске емисије загађујућих материја, ниске радне температуре, велике густине енергије, нетоксичних и еколошки прихватљивих карактеристика. Међутим, њихова шира комерцијална употреба ограничена је факторима као што су: високи трошкови племенитог метала у електрокатализатору (на пример, Pt) и лоша радна издржљивост, односно брза деградација катализатора. У овом раду је представљена активност електрооксидације метанола код PtSn, PtSnO2, PtZn и PtSnZn катализатора у киселој средини. Стабилне наночестице cу успешно синтетизоване модификованим полиол поступком уз помоћ микроталасне пећнице. Ефекти састава, степена легирања, величине и морфологије синтерованих честица на електрокаталитичку активност су испитивани СО стрипинг волтаметријом и реакцијом електрооксидације метанола. Добијени резултати указују на појачане каталитичке актигвности за реакцију оксидације метанола побољшану отпорност на инхибицију СО, након додавања Sn или  Zn у Pt катализатор.
PB  - Srpska akademija nauka i umetnosti
C3  - Srpska akademija nauka i umetnosti: savremena stremljenja u elektrohemiji u procesu prelaska na obnovljive izvore energije, Knjiga izvoda, 05/06/2023, Beoograd
T1  - Platinski katalizatori na ugljeničnoj osnovi za efikasnu oksidaciju metanola
SP  - 18
EP  - 18
UR  - https://hdl.handle.net/21.15107/rcub_cer_6327
ER  - 
@conference{
author = "Stevanović, Sanja and Milošević, Dragana and Tripković, Dušan and Maksimović, Vesna and Ćosović, Vladan and Nikolić, Nebojša D. and Krstajić Pajić, Mila and Rogan, Jelena",
year = "2023",
abstract = "Горивне ћелије са метанолом (DMFC) као горивом cу веома перспектпвни извори енергије за стационарне и преносиве електричне уређаје пре свега због своје високе ефикасности и ниске емисије загађујућих материја, ниске радне температуре, велике густине енергије, нетоксичних и еколошки прихватљивих карактеристика. Међутим, њихова шира комерцијална употреба ограничена је факторима као што су: високи трошкови племенитог метала у електрокатализатору (на пример, Pt) и лоша радна издржљивост, односно брза деградација катализатора. У овом раду је представљена активност електрооксидације метанола код PtSn, PtSnO2, PtZn и PtSnZn катализатора у киселој средини. Стабилне наночестице cу успешно синтетизоване модификованим полиол поступком уз помоћ микроталасне пећнице. Ефекти састава, степена легирања, величине и морфологије синтерованих честица на електрокаталитичку активност су испитивани СО стрипинг волтаметријом и реакцијом електрооксидације метанола. Добијени резултати указују на појачане каталитичке актигвности за реакцију оксидације метанола побољшану отпорност на инхибицију СО, након додавања Sn или  Zn у Pt катализатор.",
publisher = "Srpska akademija nauka i umetnosti",
journal = "Srpska akademija nauka i umetnosti: savremena stremljenja u elektrohemiji u procesu prelaska na obnovljive izvore energije, Knjiga izvoda, 05/06/2023, Beoograd",
title = "Platinski katalizatori na ugljeničnoj osnovi za efikasnu oksidaciju metanola",
pages = "18-18",
url = "https://hdl.handle.net/21.15107/rcub_cer_6327"
}
Stevanović, S., Milošević, D., Tripković, D., Maksimović, V., Ćosović, V., Nikolić, N. D., Krstajić Pajić, M.,& Rogan, J.. (2023). Platinski katalizatori na ugljeničnoj osnovi za efikasnu oksidaciju metanola. in Srpska akademija nauka i umetnosti: savremena stremljenja u elektrohemiji u procesu prelaska na obnovljive izvore energije, Knjiga izvoda, 05/06/2023, Beoograd
Srpska akademija nauka i umetnosti., 18-18.
https://hdl.handle.net/21.15107/rcub_cer_6327
Stevanović S, Milošević D, Tripković D, Maksimović V, Ćosović V, Nikolić ND, Krstajić Pajić M, Rogan J. Platinski katalizatori na ugljeničnoj osnovi za efikasnu oksidaciju metanola. in Srpska akademija nauka i umetnosti: savremena stremljenja u elektrohemiji u procesu prelaska na obnovljive izvore energije, Knjiga izvoda, 05/06/2023, Beoograd. 2023;:18-18.
https://hdl.handle.net/21.15107/rcub_cer_6327 .
Stevanović, Sanja, Milošević, Dragana, Tripković, Dušan, Maksimović, Vesna, Ćosović, Vladan, Nikolić, Nebojša D., Krstajić Pajić, Mila, Rogan, Jelena, "Platinski katalizatori na ugljeničnoj osnovi za efikasnu oksidaciju metanola" in Srpska akademija nauka i umetnosti: savremena stremljenja u elektrohemiji u procesu prelaska na obnovljive izvore energije, Knjiga izvoda, 05/06/2023, Beoograd (2023):18-18,
https://hdl.handle.net/21.15107/rcub_cer_6327 .

Phenomena of Nucleation and Growth of Tin Dendrites from the Alkaline Solution

Lović, Jelena; Nikolić, Nebojša D.; Milošević, Dragana; Stevanović, Sanja

(Serbian society of corrosion and materials protection (UISKOZAM) / Udruženje inženjera Srbije za koroziju i zaštitu materijala, 2023)

TY  - CONF
AU  - Lović, Jelena
AU  - Nikolić, Nebojša D.
AU  - Milošević, Dragana
AU  - Stevanović, Sanja
PY  - 2023
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6348
AB  - The processes of nucleation and growth of tin dendrites from the alkaline hydroxide solution have been investigated. Nucleation of tin was examined by chronoamperometry at the cathodic potentials which belonged to various positions at the polarization curve. The morphology of potentiostatically electrodeposited tin dendrites with various amounts of the electricity was characterized by scanning electron microscopy (SEM) technique. Depending on the cathodic potential applied for Sn electrodeposition, the following forms of Sn dendrites were obtained: the needle-like, the spear-like and the fern-like dendrites of various degree of ramification. Combining Sharifker and Hills (SH) model for a determination of nucleation type and results of morphological analysis of Sn dendrites, it is concluded that nucleation of Sn from the alkaline hydroxide solution follows the progressive type of nucleation.
AB  - Analizirani su procesi nukleacije i rasta dendrita kalaja iz alkalnog hidroksilnog rastvora. Nukleacija kalaja je bila ispitana hronoamperometrijom na katodnim potencijalima koji su pripadali različitim pozicijama na polarizacionoj krivoj. Morfologija potenciostatski elektrohemijski istaloženih dendrita kalaja sa različitim količinama elektriciteta je bila okarakterisana tehnikom skenirajuće elektronske mikroskopije (SEM). U zavisnosti od katodnog potencijala primenjenog za elektrohemijsko taloženje kalaja, formirani su sledeći oblici dendrita kalaja: igličasti, dendriti nalik koplju i dendriti nalik paprati različitog stepena razgranatosti. Kombinovanjem Šarifkerovog i Hilsovog (SH) modela za određivanje tipa nukleacije i rezultata morfološke analize dendrita kalaja, zaključeno je da nukleacija kalaja iz alkalnog hidroksilnog rastvora sledi progresivni tip nukleacije.
PB  - Serbian society of corrosion and materials protection (UISKOZAM) / Udruženje inženjera Srbije za koroziju i zaštitu materijala
C3  - Proceedings - XXIV YuCorr International Conference, Meeting Point of the Science and Practice in the Fields of Corrosion, Materials and Environmental Protection, May 28-31, 2023, Divčibare, Serbia, 2023
T1  - Phenomena of Nucleation and Growth of Tin Dendrites from the Alkaline Solution
SP  - POSTER-123
EP  - POSTER-123
UR  - https://hdl.handle.net/21.15107/rcub_cer_6348
ER  - 
@conference{
author = "Lović, Jelena and Nikolić, Nebojša D. and Milošević, Dragana and Stevanović, Sanja",
year = "2023",
abstract = "The processes of nucleation and growth of tin dendrites from the alkaline hydroxide solution have been investigated. Nucleation of tin was examined by chronoamperometry at the cathodic potentials which belonged to various positions at the polarization curve. The morphology of potentiostatically electrodeposited tin dendrites with various amounts of the electricity was characterized by scanning electron microscopy (SEM) technique. Depending on the cathodic potential applied for Sn electrodeposition, the following forms of Sn dendrites were obtained: the needle-like, the spear-like and the fern-like dendrites of various degree of ramification. Combining Sharifker and Hills (SH) model for a determination of nucleation type and results of morphological analysis of Sn dendrites, it is concluded that nucleation of Sn from the alkaline hydroxide solution follows the progressive type of nucleation., Analizirani su procesi nukleacije i rasta dendrita kalaja iz alkalnog hidroksilnog rastvora. Nukleacija kalaja je bila ispitana hronoamperometrijom na katodnim potencijalima koji su pripadali različitim pozicijama na polarizacionoj krivoj. Morfologija potenciostatski elektrohemijski istaloženih dendrita kalaja sa različitim količinama elektriciteta je bila okarakterisana tehnikom skenirajuće elektronske mikroskopije (SEM). U zavisnosti od katodnog potencijala primenjenog za elektrohemijsko taloženje kalaja, formirani su sledeći oblici dendrita kalaja: igličasti, dendriti nalik koplju i dendriti nalik paprati različitog stepena razgranatosti. Kombinovanjem Šarifkerovog i Hilsovog (SH) modela za određivanje tipa nukleacije i rezultata morfološke analize dendrita kalaja, zaključeno je da nukleacija kalaja iz alkalnog hidroksilnog rastvora sledi progresivni tip nukleacije.",
publisher = "Serbian society of corrosion and materials protection (UISKOZAM) / Udruženje inženjera Srbije za koroziju i zaštitu materijala",
journal = "Proceedings - XXIV YuCorr International Conference, Meeting Point of the Science and Practice in the Fields of Corrosion, Materials and Environmental Protection, May 28-31, 2023, Divčibare, Serbia, 2023",
title = "Phenomena of Nucleation and Growth of Tin Dendrites from the Alkaline Solution",
pages = "POSTER-123-POSTER-123",
url = "https://hdl.handle.net/21.15107/rcub_cer_6348"
}
Lović, J., Nikolić, N. D., Milošević, D.,& Stevanović, S.. (2023). Phenomena of Nucleation and Growth of Tin Dendrites from the Alkaline Solution. in Proceedings - XXIV YuCorr International Conference, Meeting Point of the Science and Practice in the Fields of Corrosion, Materials and Environmental Protection, May 28-31, 2023, Divčibare, Serbia, 2023
Serbian society of corrosion and materials protection (UISKOZAM) / Udruženje inženjera Srbije za koroziju i zaštitu materijala., POSTER-123-POSTER-123.
https://hdl.handle.net/21.15107/rcub_cer_6348
Lović J, Nikolić ND, Milošević D, Stevanović S. Phenomena of Nucleation and Growth of Tin Dendrites from the Alkaline Solution. in Proceedings - XXIV YuCorr International Conference, Meeting Point of the Science and Practice in the Fields of Corrosion, Materials and Environmental Protection, May 28-31, 2023, Divčibare, Serbia, 2023. 2023;:POSTER-123-POSTER-123.
https://hdl.handle.net/21.15107/rcub_cer_6348 .
Lović, Jelena, Nikolić, Nebojša D., Milošević, Dragana, Stevanović, Sanja, "Phenomena of Nucleation and Growth of Tin Dendrites from the Alkaline Solution" in Proceedings - XXIV YuCorr International Conference, Meeting Point of the Science and Practice in the Fields of Corrosion, Materials and Environmental Protection, May 28-31, 2023, Divčibare, Serbia, 2023 (2023):POSTER-123-POSTER-123,
https://hdl.handle.net/21.15107/rcub_cer_6348 .

The influence of thermal annealing of Pt-based thin films on electro-oxidation of formic acid

Milošević, Dragana; Stevanović, Sanja; Nikolić, Nebojša D.; Tripković, Dušan

(Belgrade : Institute for Multidisciplinary Research, 2023)

TY  - CONF
AU  - Milošević, Dragana
AU  - Stevanović, Sanja
AU  - Nikolić, Nebojša D.
AU  - Tripković, Dušan
PY  - 2023
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6412
AB  - Due to their high electrocatalytic activity, Pt-based materials are widely investigated as electrocatalysts for the electro-oxidation of small organic molecules for fuel cells technology applications, contributing to the potential reduction of fossil fuel use in the near future. In addition to methanol, formic acid has also gained increasing attention as a potential fuel for direct fuel cells due to lower toxicity, non-flammability and a lower storage cost. The electro-oxidation of formic acid on Pt-based thin films is taking place predominantly via indirect pathway, through the dehydrogenation reaction of formic acid, with the formation of CO as a poisoning species. The activity of electrocatalysts is dependent both on surface structure and surface orientation in terms of the arrangement of the atoms at the surface. Controlled heat treatment led to the rearrangement of surface atoms thus enhancing the catalytic properties. In order to investigate changes in morphology before and after thermal annealing, Pt/CrNi catalysts were characterized using an atomic force microscope (AFM). The performance of all catalysts was tested in formic acid electro-oxidation reaction. The synergistic effect of individual metallic components, in the designed catalyst, resulted in high activity and exceptional stability. The approach demonstrated in this work may promote the development of new generation of high-performance catalysts for use in direct formic acid fuel cells (DFAFCs).
PB  - Belgrade : Institute for Multidisciplinary Research
C3  - Book of Abstracts - 7th Conference of the Serbian Society for Ceramic Materials, June 14-16 2023, Belgrade, Serbia
T1  - The influence of thermal annealing of Pt-based thin films on electro-oxidation of formic acid
SP  - 112
EP  - 112
UR  - https://hdl.handle.net/21.15107/rcub_cer_6412
ER  - 
@conference{
author = "Milošević, Dragana and Stevanović, Sanja and Nikolić, Nebojša D. and Tripković, Dušan",
year = "2023",
abstract = "Due to their high electrocatalytic activity, Pt-based materials are widely investigated as electrocatalysts for the electro-oxidation of small organic molecules for fuel cells technology applications, contributing to the potential reduction of fossil fuel use in the near future. In addition to methanol, formic acid has also gained increasing attention as a potential fuel for direct fuel cells due to lower toxicity, non-flammability and a lower storage cost. The electro-oxidation of formic acid on Pt-based thin films is taking place predominantly via indirect pathway, through the dehydrogenation reaction of formic acid, with the formation of CO as a poisoning species. The activity of electrocatalysts is dependent both on surface structure and surface orientation in terms of the arrangement of the atoms at the surface. Controlled heat treatment led to the rearrangement of surface atoms thus enhancing the catalytic properties. In order to investigate changes in morphology before and after thermal annealing, Pt/CrNi catalysts were characterized using an atomic force microscope (AFM). The performance of all catalysts was tested in formic acid electro-oxidation reaction. The synergistic effect of individual metallic components, in the designed catalyst, resulted in high activity and exceptional stability. The approach demonstrated in this work may promote the development of new generation of high-performance catalysts for use in direct formic acid fuel cells (DFAFCs).",
publisher = "Belgrade : Institute for Multidisciplinary Research",
journal = "Book of Abstracts - 7th Conference of the Serbian Society for Ceramic Materials, June 14-16 2023, Belgrade, Serbia",
title = "The influence of thermal annealing of Pt-based thin films on electro-oxidation of formic acid",
pages = "112-112",
url = "https://hdl.handle.net/21.15107/rcub_cer_6412"
}
Milošević, D., Stevanović, S., Nikolić, N. D.,& Tripković, D.. (2023). The influence of thermal annealing of Pt-based thin films on electro-oxidation of formic acid. in Book of Abstracts - 7th Conference of the Serbian Society for Ceramic Materials, June 14-16 2023, Belgrade, Serbia
Belgrade : Institute for Multidisciplinary Research., 112-112.
https://hdl.handle.net/21.15107/rcub_cer_6412
Milošević D, Stevanović S, Nikolić ND, Tripković D. The influence of thermal annealing of Pt-based thin films on electro-oxidation of formic acid. in Book of Abstracts - 7th Conference of the Serbian Society for Ceramic Materials, June 14-16 2023, Belgrade, Serbia. 2023;:112-112.
https://hdl.handle.net/21.15107/rcub_cer_6412 .
Milošević, Dragana, Stevanović, Sanja, Nikolić, Nebojša D., Tripković, Dušan, "The influence of thermal annealing of Pt-based thin films on electro-oxidation of formic acid" in Book of Abstracts - 7th Conference of the Serbian Society for Ceramic Materials, June 14-16 2023, Belgrade, Serbia (2023):112-112,
https://hdl.handle.net/21.15107/rcub_cer_6412 .

Promoting effect of Zn in platinum catalyst for effective methanol electrooxidation reaction

Stevanović, Sanja; Milošević, Dragana; Tripković, Dušan; Ćosović, Vladan; Maksimović, Vesna M.; Nikolić, Nebojša D.

(Serbian society of corrosion and materials protection (UISKoZaM) / Udruženje inženjera Srbije za koroziju i zaštitu materijala, 2023)

TY  - CONF
AU  - Stevanović, Sanja
AU  - Milošević, Dragana
AU  - Tripković, Dušan
AU  - Ćosović, Vladan
AU  - Maksimović, Vesna M.
AU  - Nikolić, Nebojša D.
PY  - 2023
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6496
AB  - Polymer electrolyte membrane fuel cells (PEMFCs) are pure electrochemical energy converters that are key components of energy sources for vehicles and for stationary and portable energy suppliers. Searching for a good catalyst for the ethanol oxidation reaction is one of the most significant issues in material science. To increase the economic potential of fuel cell technology, catalyst must be extremely active, stable, and inexpensive. Due to its high catalytic activity, structural and chemical stability, and widespread use in commercial fuel cells, platinum is still the material of choice for making cathodes. Although there is extensive continuing research to reduce the Pt concentration while keeping the high catalytic activity, its high cost remains a barrier to a wider adoption of fuel cell technology.Therefore, the potential for cost reduction lies in the optimization of the catalyst, i.e. obtaining the maximum catalytic efficiency with the lowest possible content of noble metals. The focus of this research will be on novel synthesis techniques for PtSnZn catalysts with better efficiency and durability for the ethanol oxidation reaction. This research demonstrates the potential of studying new PtSnZn catalytic materials as catalysts for the oxidation of ethanol. This study used the microwave assisted polyol technique to create PtZn and PtSnZn nanoparticles supported on high surface area carbon Vulcan XC-72R material. By using cyclic voltammetry, electro-oxidation of adsorbed CO, and the chronoamperometric method, the electrochemical behavior of synthesized catalysts was examined. X-ray diffractometry, transmission electron microscopy analysis and thermogravimetric analysis were applied to obtain the physicochemical properties of the catalyst. The advantages of microwave synthesis and carefully balanced metal alloying in the PtSnZn/C catalysts led to a high catalytic activity of the synthesized catalyst in the ethanol oxidation reaction compared to the Pt/C catalyst.
PB  - Serbian society of corrosion and materials protection (UISKoZaM) / Udruženje inženjera Srbije za koroziju i zaštitu materijala
C3  - Proceedings - XXIV YuCorr International Conference, Meeting Point of the Science and Practice in the Fields of Corrosion, Materials and Environmental Protection, May 28-31, 2023, Divčibare, Serbia
T1  - Promoting effect of Zn in platinum catalyst for effective methanol electrooxidation reaction
T1  - Promotivni efekat Zn u platinskom katalizatoru za efikasnu reakciju elektrooksidacije etanola
SP  - POSTER-102
EP  - POSTER-103
UR  - https://hdl.handle.net/21.15107/rcub_cer_6496
ER  - 
@conference{
author = "Stevanović, Sanja and Milošević, Dragana and Tripković, Dušan and Ćosović, Vladan and Maksimović, Vesna M. and Nikolić, Nebojša D.",
year = "2023",
abstract = "Polymer electrolyte membrane fuel cells (PEMFCs) are pure electrochemical energy converters that are key components of energy sources for vehicles and for stationary and portable energy suppliers. Searching for a good catalyst for the ethanol oxidation reaction is one of the most significant issues in material science. To increase the economic potential of fuel cell technology, catalyst must be extremely active, stable, and inexpensive. Due to its high catalytic activity, structural and chemical stability, and widespread use in commercial fuel cells, platinum is still the material of choice for making cathodes. Although there is extensive continuing research to reduce the Pt concentration while keeping the high catalytic activity, its high cost remains a barrier to a wider adoption of fuel cell technology.Therefore, the potential for cost reduction lies in the optimization of the catalyst, i.e. obtaining the maximum catalytic efficiency with the lowest possible content of noble metals. The focus of this research will be on novel synthesis techniques for PtSnZn catalysts with better efficiency and durability for the ethanol oxidation reaction. This research demonstrates the potential of studying new PtSnZn catalytic materials as catalysts for the oxidation of ethanol. This study used the microwave assisted polyol technique to create PtZn and PtSnZn nanoparticles supported on high surface area carbon Vulcan XC-72R material. By using cyclic voltammetry, electro-oxidation of adsorbed CO, and the chronoamperometric method, the electrochemical behavior of synthesized catalysts was examined. X-ray diffractometry, transmission electron microscopy analysis and thermogravimetric analysis were applied to obtain the physicochemical properties of the catalyst. The advantages of microwave synthesis and carefully balanced metal alloying in the PtSnZn/C catalysts led to a high catalytic activity of the synthesized catalyst in the ethanol oxidation reaction compared to the Pt/C catalyst.",
publisher = "Serbian society of corrosion and materials protection (UISKoZaM) / Udruženje inženjera Srbije za koroziju i zaštitu materijala",
journal = "Proceedings - XXIV YuCorr International Conference, Meeting Point of the Science and Practice in the Fields of Corrosion, Materials and Environmental Protection, May 28-31, 2023, Divčibare, Serbia",
title = "Promoting effect of Zn in platinum catalyst for effective methanol electrooxidation reaction, Promotivni efekat Zn u platinskom katalizatoru za efikasnu reakciju elektrooksidacije etanola",
pages = "POSTER-102-POSTER-103",
url = "https://hdl.handle.net/21.15107/rcub_cer_6496"
}
Stevanović, S., Milošević, D., Tripković, D., Ćosović, V., Maksimović, V. M.,& Nikolić, N. D.. (2023). Promoting effect of Zn in platinum catalyst for effective methanol electrooxidation reaction. in Proceedings - XXIV YuCorr International Conference, Meeting Point of the Science and Practice in the Fields of Corrosion, Materials and Environmental Protection, May 28-31, 2023, Divčibare, Serbia
Serbian society of corrosion and materials protection (UISKoZaM) / Udruženje inženjera Srbije za koroziju i zaštitu materijala., POSTER-102-POSTER-103.
https://hdl.handle.net/21.15107/rcub_cer_6496
Stevanović S, Milošević D, Tripković D, Ćosović V, Maksimović VM, Nikolić ND. Promoting effect of Zn in platinum catalyst for effective methanol electrooxidation reaction. in Proceedings - XXIV YuCorr International Conference, Meeting Point of the Science and Practice in the Fields of Corrosion, Materials and Environmental Protection, May 28-31, 2023, Divčibare, Serbia. 2023;:POSTER-102-POSTER-103.
https://hdl.handle.net/21.15107/rcub_cer_6496 .
Stevanović, Sanja, Milošević, Dragana, Tripković, Dušan, Ćosović, Vladan, Maksimović, Vesna M., Nikolić, Nebojša D., "Promoting effect of Zn in platinum catalyst for effective methanol electrooxidation reaction" in Proceedings - XXIV YuCorr International Conference, Meeting Point of the Science and Practice in the Fields of Corrosion, Materials and Environmental Protection, May 28-31, 2023, Divčibare, Serbia (2023):POSTER-102-POSTER-103,
https://hdl.handle.net/21.15107/rcub_cer_6496 .

Methanol electrooxidation on carbon-supported binary and ternary platinum catalysts

Milošević, Dragana; Tripković, Dušan; Ćosović, Vladan; Maksimović, Vesna M.; Nikolić, Nebojša D.; Stevanović, Sanja

(Serbian society of corrosion and materials protection (UISKoZaM) / Udruženje inženjera Srbije za koroziju i zaštitu materijala, 2023)

TY  - CONF
AU  - Milošević, Dragana
AU  - Tripković, Dušan
AU  - Ćosović, Vladan
AU  - Maksimović, Vesna M.
AU  - Nikolić, Nebojša D.
AU  - Stevanović, Sanja
PY  - 2023
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6497
AB  - One of the most popular alternative sources of energy are direct methanol fuel cells (DMFCs) with platinum-based catalysts due to their non-toxicity, reduced emissions of hazardous pollutants and high energy density. However, significant challenges of the scientific community related to Pt catalysts are the high cost, depletable resources and formation of poisoning species i.e. CO, during the methanol oxidation reaction. To reduce the amount of expensive Pt and susceptibility of Pt to poisoning species and simultaneously improve its catalytic performance, recent studies are focusing on the synthesis of Pt alloys in which a certain amount of platinum is replaced with less expensive metals such as Ru, Sn, Ni, Cu, Rh and Co. The usage of carbon (Vulcan XC-72R) for catalyst support enables high dispersion of metal, high surface area and good electrical conductivity improving overall performances of DMFCs. In this work, PtZn/C and PtSnZn/C catalysts were synthesized by the microwave-assisted polyol method. The structure and morphology of the catalysts were characterized by transmission electron microscopy (TEM), thermogravimetric (TG) and X-ray diffraction (XRD) analysis. The activity and stability of synthesized catalysts for methanol oxidation in 0.5 M sulfuric acid were investigated. It was demonstrated that the activity of the platinum catalysts was improved thanks to the synergistic effects caused by the addition of different metals, such are bifunctional and electronic effects.
PB  - Serbian society of corrosion and materials protection (UISKoZaM) / Udruženje inženjera Srbije za koroziju i zaštitu materijala
C3  - Proceedings - XXIV YuCorr International Conference, Meeting Point of the Science and Practice in the Fields of Corrosion, Materials and Environmental Protection, May 28-31, 2023, Divčibare, Serbia
T1  - Methanol electrooxidation on carbon-supported binary and ternary platinum catalysts
T1  - Elektrooksidacija metanola na binarnim i ternarnim platinskim katalizatorima na ugljeničnom nosaču
SP  - POSTER-169
EP  - POSTER-170
UR  - https://hdl.handle.net/21.15107/rcub_cer_6497
ER  - 
@conference{
author = "Milošević, Dragana and Tripković, Dušan and Ćosović, Vladan and Maksimović, Vesna M. and Nikolić, Nebojša D. and Stevanović, Sanja",
year = "2023",
abstract = "One of the most popular alternative sources of energy are direct methanol fuel cells (DMFCs) with platinum-based catalysts due to their non-toxicity, reduced emissions of hazardous pollutants and high energy density. However, significant challenges of the scientific community related to Pt catalysts are the high cost, depletable resources and formation of poisoning species i.e. CO, during the methanol oxidation reaction. To reduce the amount of expensive Pt and susceptibility of Pt to poisoning species and simultaneously improve its catalytic performance, recent studies are focusing on the synthesis of Pt alloys in which a certain amount of platinum is replaced with less expensive metals such as Ru, Sn, Ni, Cu, Rh and Co. The usage of carbon (Vulcan XC-72R) for catalyst support enables high dispersion of metal, high surface area and good electrical conductivity improving overall performances of DMFCs. In this work, PtZn/C and PtSnZn/C catalysts were synthesized by the microwave-assisted polyol method. The structure and morphology of the catalysts were characterized by transmission electron microscopy (TEM), thermogravimetric (TG) and X-ray diffraction (XRD) analysis. The activity and stability of synthesized catalysts for methanol oxidation in 0.5 M sulfuric acid were investigated. It was demonstrated that the activity of the platinum catalysts was improved thanks to the synergistic effects caused by the addition of different metals, such are bifunctional and electronic effects.",
publisher = "Serbian society of corrosion and materials protection (UISKoZaM) / Udruženje inženjera Srbije za koroziju i zaštitu materijala",
journal = "Proceedings - XXIV YuCorr International Conference, Meeting Point of the Science and Practice in the Fields of Corrosion, Materials and Environmental Protection, May 28-31, 2023, Divčibare, Serbia",
title = "Methanol electrooxidation on carbon-supported binary and ternary platinum catalysts, Elektrooksidacija metanola na binarnim i ternarnim platinskim katalizatorima na ugljeničnom nosaču",
pages = "POSTER-169-POSTER-170",
url = "https://hdl.handle.net/21.15107/rcub_cer_6497"
}
Milošević, D., Tripković, D., Ćosović, V., Maksimović, V. M., Nikolić, N. D.,& Stevanović, S.. (2023). Methanol electrooxidation on carbon-supported binary and ternary platinum catalysts. in Proceedings - XXIV YuCorr International Conference, Meeting Point of the Science and Practice in the Fields of Corrosion, Materials and Environmental Protection, May 28-31, 2023, Divčibare, Serbia
Serbian society of corrosion and materials protection (UISKoZaM) / Udruženje inženjera Srbije za koroziju i zaštitu materijala., POSTER-169-POSTER-170.
https://hdl.handle.net/21.15107/rcub_cer_6497
Milošević D, Tripković D, Ćosović V, Maksimović VM, Nikolić ND, Stevanović S. Methanol electrooxidation on carbon-supported binary and ternary platinum catalysts. in Proceedings - XXIV YuCorr International Conference, Meeting Point of the Science and Practice in the Fields of Corrosion, Materials and Environmental Protection, May 28-31, 2023, Divčibare, Serbia. 2023;:POSTER-169-POSTER-170.
https://hdl.handle.net/21.15107/rcub_cer_6497 .
Milošević, Dragana, Tripković, Dušan, Ćosović, Vladan, Maksimović, Vesna M., Nikolić, Nebojša D., Stevanović, Sanja, "Methanol electrooxidation on carbon-supported binary and ternary platinum catalysts" in Proceedings - XXIV YuCorr International Conference, Meeting Point of the Science and Practice in the Fields of Corrosion, Materials and Environmental Protection, May 28-31, 2023, Divčibare, Serbia (2023):POSTER-169-POSTER-170,
https://hdl.handle.net/21.15107/rcub_cer_6497 .

Formic acid electrooxidation on Ni-supported platinum thin film catalyst

Milošević, Dragana; Stevanović, Sanja; Nikolić, Nebojša D.; Tripković, Dušan

(Serbian society of corrosion and materials protection (UISKoZaM) / Udruženje inženjera Srbije za koroziju i zaštitu materijala, 2023)

TY  - CONF
AU  - Milošević, Dragana
AU  - Stevanović, Sanja
AU  - Nikolić, Nebojša D.
AU  - Tripković, Dušan
PY  - 2023
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6498
AB  - Pollution caused by the usage of fossil fuels is a consequence of industrialization, urbanization, and technological development, having a huge impact on the environment and human health. Thus, one of the biggest challenges that currently confront not only the scientific community but also humanity is reducing the use of fossil fuels, as well as the production and consumption of energy using renewable energy sources. In the last decades, small organic molecules such as methanol, ethanol and formic acid have attracted attention due to their properties that make them convenient for use in fuel cells. Among other precious metals, Pt is the most investigated as a promising catalyst for the anodic electrooxidation reaction of small organic molecules. However, high price, scarceness and susceptibility to poisoning are some of the limiting factors for the commercial use of pure Pt. There are two ways to mitigate those problems: lower the content of a noble metal present or make the catalyst more active for the particular reaction. To address the first problem nanocatalyst, produced by the deposition of platinum onto high surface area supports were introduced. A far greater challenge is to modify the catalyst to make it not just more active, but more stable as well, for a particular reaction. It is now well known that bimetallic catalysts fulfill these requirements quite well, and currently, they are widely used in many catalytic and electrocatalytic processes. In this study, a thin Pt film was electrochemically deposited on nickel support (Pt/Ni) and afterward subjected to the controlled thermal treatment in an attempt to reduce the proneness of Pt to poisoning species (CO) and therefore improve its catalytic performance at low potentials in the formic oxidation reaction. All produced catalysts were electrochemically characterized using cyclic voltammetry and oxidation of CO monolayer, while the influence of thermal annealing on the morphology was monitored using an atomic force microscope (AFM). Finally, catalyst performance was tested in a formic acid electrooxidation reaction. The obtained results clearly show that the exceptional activity for formic acid electrooxidation, measured on annealed Pt/Ni is a direct consequence of the nature of the substrate which manifests itself after controlled heat treatment through surface reconstruction and bifunctional effect.
PB  - Serbian society of corrosion and materials protection (UISKoZaM) / Udruženje inženjera Srbije za koroziju i zaštitu materijala
C3  - Proceedings - XXIV YuCorr International Conference, Meeting Point of the Science and Practice in the Fields of Corrosion, Materials and Environmental Protection, May 28-31, 2023, Divčibare, Serbia
T1  - Formic acid electrooxidation on Ni-supported platinum thin film catalyst
T1  - Oksidacija mravlje kiseline na platinskim katalizatorima na Ni nosaču
SP  - POSTER-167
EP  - POSTER-168
UR  - https://hdl.handle.net/21.15107/rcub_cer_6498
ER  - 
@conference{
author = "Milošević, Dragana and Stevanović, Sanja and Nikolić, Nebojša D. and Tripković, Dušan",
year = "2023",
abstract = "Pollution caused by the usage of fossil fuels is a consequence of industrialization, urbanization, and technological development, having a huge impact on the environment and human health. Thus, one of the biggest challenges that currently confront not only the scientific community but also humanity is reducing the use of fossil fuels, as well as the production and consumption of energy using renewable energy sources. In the last decades, small organic molecules such as methanol, ethanol and formic acid have attracted attention due to their properties that make them convenient for use in fuel cells. Among other precious metals, Pt is the most investigated as a promising catalyst for the anodic electrooxidation reaction of small organic molecules. However, high price, scarceness and susceptibility to poisoning are some of the limiting factors for the commercial use of pure Pt. There are two ways to mitigate those problems: lower the content of a noble metal present or make the catalyst more active for the particular reaction. To address the first problem nanocatalyst, produced by the deposition of platinum onto high surface area supports were introduced. A far greater challenge is to modify the catalyst to make it not just more active, but more stable as well, for a particular reaction. It is now well known that bimetallic catalysts fulfill these requirements quite well, and currently, they are widely used in many catalytic and electrocatalytic processes. In this study, a thin Pt film was electrochemically deposited on nickel support (Pt/Ni) and afterward subjected to the controlled thermal treatment in an attempt to reduce the proneness of Pt to poisoning species (CO) and therefore improve its catalytic performance at low potentials in the formic oxidation reaction. All produced catalysts were electrochemically characterized using cyclic voltammetry and oxidation of CO monolayer, while the influence of thermal annealing on the morphology was monitored using an atomic force microscope (AFM). Finally, catalyst performance was tested in a formic acid electrooxidation reaction. The obtained results clearly show that the exceptional activity for formic acid electrooxidation, measured on annealed Pt/Ni is a direct consequence of the nature of the substrate which manifests itself after controlled heat treatment through surface reconstruction and bifunctional effect.",
publisher = "Serbian society of corrosion and materials protection (UISKoZaM) / Udruženje inženjera Srbije za koroziju i zaštitu materijala",
journal = "Proceedings - XXIV YuCorr International Conference, Meeting Point of the Science and Practice in the Fields of Corrosion, Materials and Environmental Protection, May 28-31, 2023, Divčibare, Serbia",
title = "Formic acid electrooxidation on Ni-supported platinum thin film catalyst, Oksidacija mravlje kiseline na platinskim katalizatorima na Ni nosaču",
pages = "POSTER-167-POSTER-168",
url = "https://hdl.handle.net/21.15107/rcub_cer_6498"
}
Milošević, D., Stevanović, S., Nikolić, N. D.,& Tripković, D.. (2023). Formic acid electrooxidation on Ni-supported platinum thin film catalyst. in Proceedings - XXIV YuCorr International Conference, Meeting Point of the Science and Practice in the Fields of Corrosion, Materials and Environmental Protection, May 28-31, 2023, Divčibare, Serbia
Serbian society of corrosion and materials protection (UISKoZaM) / Udruženje inženjera Srbije za koroziju i zaštitu materijala., POSTER-167-POSTER-168.
https://hdl.handle.net/21.15107/rcub_cer_6498
Milošević D, Stevanović S, Nikolić ND, Tripković D. Formic acid electrooxidation on Ni-supported platinum thin film catalyst. in Proceedings - XXIV YuCorr International Conference, Meeting Point of the Science and Practice in the Fields of Corrosion, Materials and Environmental Protection, May 28-31, 2023, Divčibare, Serbia. 2023;:POSTER-167-POSTER-168.
https://hdl.handle.net/21.15107/rcub_cer_6498 .
Milošević, Dragana, Stevanović, Sanja, Nikolić, Nebojša D., Tripković, Dušan, "Formic acid electrooxidation on Ni-supported platinum thin film catalyst" in Proceedings - XXIV YuCorr International Conference, Meeting Point of the Science and Practice in the Fields of Corrosion, Materials and Environmental Protection, May 28-31, 2023, Divčibare, Serbia (2023):POSTER-167-POSTER-168,
https://hdl.handle.net/21.15107/rcub_cer_6498 .

Correlation Between Morphology and Structure of Galvanostatically Electrodeposited Tin Dendrites

Nikolić, Nebojša D.; Lović, Jelena; Maksimović, Vesna; Stevanović, Sanja

(Skopje : Society of chemists and technologists of Macedonia, 2023)

TY  - CONF
AU  - Nikolić, Nebojša D.
AU  - Lović, Jelena
AU  - Maksimović, Vesna
AU  - Stevanović, Sanja
PY  - 2023
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6717
AB  - Tin dendrites found wide application in various industries.1 They can be obtained by both non-electrochemical and electrochemical methods of synthesis. In this study, they were produced by a galvanostatic regime of electrolysis from alkaline hydroxide solution at a current density of –3 mA cm–2, 1.5 times larger than the limiting diffusion current density, with an amount of the electricity of 200 and 400 mC. In the dependence of an amount of the passed electricity, Sn dendrites of various morphology and crystal orientation were obtained: the fern-like dendrites predominantly oriented in (220), (440) crystal planes are obtained with 200 mC and the spear-like and the dendrites with prismatic branches showing the strong (200),(400) preferred orientationwere obtained with 400 mC.
The strong correlation between morphology and structure of Sn dendrites is established and it can be explained by analysis of chronopotentiometry response obtained at the given current density and by morphological and structural analyses of Sn dendrites obtained by a potentiostatic regime at cathodic potentials corresponding to values attained after the passed amount of the electricity of 200 and 400 mC. The chronopotentiometry response after spent 200 mC was dominantly in the (–1600 –1740) mV vs. Ag/AgCl range, and the fern-like dendrites with the strong (220), (440) preferred orientation were obtained in this potential range. After spent 400 mC, the chronopotentiometry response was about –1200 mV vs. Ag/AgCl, and the spear-like and the dendrites with prismatic branches with the strong (200),(400) preferred orientationwere obtained at this cathodic potential.
PB  - Skopje : Society of chemists and technologists of Macedonia
C3  - Book of abstracts - 26th Congress of Chemists and Technologysts of Macedonia, 20–23 September 2023 Metropol Lake Resort Ohrid, N. Macedonia
T1  - Correlation Between Morphology and Structure of Galvanostatically Electrodeposited Tin Dendrites
SP  - 136
EP  - 136
UR  - https://hdl.handle.net/21.15107/rcub_cer_6717
ER  - 
@conference{
author = "Nikolić, Nebojša D. and Lović, Jelena and Maksimović, Vesna and Stevanović, Sanja",
year = "2023",
abstract = "Tin dendrites found wide application in various industries.1 They can be obtained by both non-electrochemical and electrochemical methods of synthesis. In this study, they were produced by a galvanostatic regime of electrolysis from alkaline hydroxide solution at a current density of –3 mA cm–2, 1.5 times larger than the limiting diffusion current density, with an amount of the electricity of 200 and 400 mC. In the dependence of an amount of the passed electricity, Sn dendrites of various morphology and crystal orientation were obtained: the fern-like dendrites predominantly oriented in (220), (440) crystal planes are obtained with 200 mC and the spear-like and the dendrites with prismatic branches showing the strong (200),(400) preferred orientationwere obtained with 400 mC.
The strong correlation between morphology and structure of Sn dendrites is established and it can be explained by analysis of chronopotentiometry response obtained at the given current density and by morphological and structural analyses of Sn dendrites obtained by a potentiostatic regime at cathodic potentials corresponding to values attained after the passed amount of the electricity of 200 and 400 mC. The chronopotentiometry response after spent 200 mC was dominantly in the (–1600 –1740) mV vs. Ag/AgCl range, and the fern-like dendrites with the strong (220), (440) preferred orientation were obtained in this potential range. After spent 400 mC, the chronopotentiometry response was about –1200 mV vs. Ag/AgCl, and the spear-like and the dendrites with prismatic branches with the strong (200),(400) preferred orientationwere obtained at this cathodic potential.",
publisher = "Skopje : Society of chemists and technologists of Macedonia",
journal = "Book of abstracts - 26th Congress of Chemists and Technologysts of Macedonia, 20–23 September 2023 Metropol Lake Resort Ohrid, N. Macedonia",
title = "Correlation Between Morphology and Structure of Galvanostatically Electrodeposited Tin Dendrites",
pages = "136-136",
url = "https://hdl.handle.net/21.15107/rcub_cer_6717"
}
Nikolić, N. D., Lović, J., Maksimović, V.,& Stevanović, S.. (2023). Correlation Between Morphology and Structure of Galvanostatically Electrodeposited Tin Dendrites. in Book of abstracts - 26th Congress of Chemists and Technologysts of Macedonia, 20–23 September 2023 Metropol Lake Resort Ohrid, N. Macedonia
Skopje : Society of chemists and technologists of Macedonia., 136-136.
https://hdl.handle.net/21.15107/rcub_cer_6717
Nikolić ND, Lović J, Maksimović V, Stevanović S. Correlation Between Morphology and Structure of Galvanostatically Electrodeposited Tin Dendrites. in Book of abstracts - 26th Congress of Chemists and Technologysts of Macedonia, 20–23 September 2023 Metropol Lake Resort Ohrid, N. Macedonia. 2023;:136-136.
https://hdl.handle.net/21.15107/rcub_cer_6717 .
Nikolić, Nebojša D., Lović, Jelena, Maksimović, Vesna, Stevanović, Sanja, "Correlation Between Morphology and Structure of Galvanostatically Electrodeposited Tin Dendrites" in Book of abstracts - 26th Congress of Chemists and Technologysts of Macedonia, 20–23 September 2023 Metropol Lake Resort Ohrid, N. Macedonia (2023):136-136,
https://hdl.handle.net/21.15107/rcub_cer_6717 .

Design of PtSnZn Nanocatalysts for Anodic Reactions in Fuel Cells

Stevanović, Sanja; Milošević, Dragana; Tripković, Dušan; Ćosović, Vladan; Nikolić, Nebojša D.; Maksimović, Vesna

(Skopje : Society of chemists and technologists of Macedonia, 2023)

TY  - CONF
AU  - Stevanović, Sanja
AU  - Milošević, Dragana
AU  - Tripković, Dušan
AU  - Ćosović, Vladan
AU  - Nikolić, Nebojša D.
AU  - Maksimović, Vesna
PY  - 2023
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6745
AB  - In order to achieve widespread application of fuel cell technology, the
development of an efficient and economical catalyst is a crucial step. Reducing the
diameter of catalyst particles, producing particles with a specific orientation surface,
and alloying noble metals with less expensive metals are possible approaches to
improve catalyst performance. This study will be focused on novel ways for creating
PtSnZn catalysts that are more effective for the anodic reactions in fuel cell such are
methanol, ethanol and formic acid oxidation reactions. PtZn and PtSnZn
nanoparticles were produced using the microwave assisted polyol method and were
supported on high surface area carbon Vulcan XC-72R material. The electrochemical
behavior of synthesized catalysts was investigated utilizing the cyclic voltammetry,
chronoamperometric technique, and electro-oxidation of adsorbed CO. To determine
the catalyst's physicochemical characteristics, X-ray diffraction (XRD), transmission
electron microscopy analysis (TEM), and thermogravimetric analysis (TGA) were
used. High catalytic activity of the PtSnZn/C catalysts was achieved thanks to the
benefits of microwave synthesis and carefully adjusted metal alloying.
PB  - Skopje : Society of chemists and technologists of Macedonia
C3  - Book of abstracts - 26th Congress of Chemists and Technologysts of Macedonia, 20–23 September 2023, Metropol Lake Resort Ohrid, N. Macedonia
T1  - Design of PtSnZn Nanocatalysts for Anodic Reactions in Fuel Cells
SP  - 132
EP  - 132
UR  - https://hdl.handle.net/21.15107/rcub_cer_6745
ER  - 
@conference{
author = "Stevanović, Sanja and Milošević, Dragana and Tripković, Dušan and Ćosović, Vladan and Nikolić, Nebojša D. and Maksimović, Vesna",
year = "2023",
abstract = "In order to achieve widespread application of fuel cell technology, the
development of an efficient and economical catalyst is a crucial step. Reducing the
diameter of catalyst particles, producing particles with a specific orientation surface,
and alloying noble metals with less expensive metals are possible approaches to
improve catalyst performance. This study will be focused on novel ways for creating
PtSnZn catalysts that are more effective for the anodic reactions in fuel cell such are
methanol, ethanol and formic acid oxidation reactions. PtZn and PtSnZn
nanoparticles were produced using the microwave assisted polyol method and were
supported on high surface area carbon Vulcan XC-72R material. The electrochemical
behavior of synthesized catalysts was investigated utilizing the cyclic voltammetry,
chronoamperometric technique, and electro-oxidation of adsorbed CO. To determine
the catalyst's physicochemical characteristics, X-ray diffraction (XRD), transmission
electron microscopy analysis (TEM), and thermogravimetric analysis (TGA) were
used. High catalytic activity of the PtSnZn/C catalysts was achieved thanks to the
benefits of microwave synthesis and carefully adjusted metal alloying.",
publisher = "Skopje : Society of chemists and technologists of Macedonia",
journal = "Book of abstracts - 26th Congress of Chemists and Technologysts of Macedonia, 20–23 September 2023, Metropol Lake Resort Ohrid, N. Macedonia",
title = "Design of PtSnZn Nanocatalysts for Anodic Reactions in Fuel Cells",
pages = "132-132",
url = "https://hdl.handle.net/21.15107/rcub_cer_6745"
}
Stevanović, S., Milošević, D., Tripković, D., Ćosović, V., Nikolić, N. D.,& Maksimović, V.. (2023). Design of PtSnZn Nanocatalysts for Anodic Reactions in Fuel Cells. in Book of abstracts - 26th Congress of Chemists and Technologysts of Macedonia, 20–23 September 2023, Metropol Lake Resort Ohrid, N. Macedonia
Skopje : Society of chemists and technologists of Macedonia., 132-132.
https://hdl.handle.net/21.15107/rcub_cer_6745
Stevanović S, Milošević D, Tripković D, Ćosović V, Nikolić ND, Maksimović V. Design of PtSnZn Nanocatalysts for Anodic Reactions in Fuel Cells. in Book of abstracts - 26th Congress of Chemists and Technologysts of Macedonia, 20–23 September 2023, Metropol Lake Resort Ohrid, N. Macedonia. 2023;:132-132.
https://hdl.handle.net/21.15107/rcub_cer_6745 .
Stevanović, Sanja, Milošević, Dragana, Tripković, Dušan, Ćosović, Vladan, Nikolić, Nebojša D., Maksimović, Vesna, "Design of PtSnZn Nanocatalysts for Anodic Reactions in Fuel Cells" in Book of abstracts - 26th Congress of Chemists and Technologysts of Macedonia, 20–23 September 2023, Metropol Lake Resort Ohrid, N. Macedonia (2023):132-132,
https://hdl.handle.net/21.15107/rcub_cer_6745 .

The influence of Zn content on the activity of PtZn catalysts in methanol electrooxidation reaction

Milošević, Dragana; Stevanović, Sanja; Nikolić, Nebojša D.; Tripković, Dušan; Vukašinović, Ivana; Ćosović, Vladan; Nikolić, Nebojša D.

(Crnogorsko društvo za koroziju, zaštitu materijala i zaštitu životne sredine, 2023)

TY  - CONF
AU  - Milošević, Dragana
AU  - Stevanović, Sanja
AU  - Nikolić, Nebojša D.
AU  - Tripković, Dušan
AU  - Vukašinović, Ivana
AU  - Ćosović, Vladan
AU  - Nikolić, Nebojša D.
PY  - 2023
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6790
AB  - This work highlights a simple and efficient approach for the development of
PtZn catalyst materials with tunable content of Zn. Nanoparticles of PtZn
deposited on high surface area carbon Vulcan XC-72R material were
synthesized by microwave-assisted polyol method, giving control over the size
and dispersion of nanoparticles. Cyclic voltammetry and electrooxidation of
adsorbed CO were used to investigate the electrochemical behavior of
synthesized catalysts: PtZn/C (90:10); PtZn/C (85:15) and PtZn/C (75:25). It
was found that PtZn/C catalysts have high electrocatalytic performance in
methanol oxidation reactions. In comparison to the corresponding catalyst with
the different Zn loading, it was concluded that PtZn (90:10)/C catalyst had
better activity compared to PtZn/C (85:15) and PtZn/C (75:25) catalysts. The
observed high catalytic activity in the methanol oxidation reaction of
synthesized catalysts can be ascribed to the very efficient microwave synthesis
and well-balanced content of Zn as alloying metal.
AB  - Ovaj rad predstavlja jednostavan i efikasan pristup za razvoj PtZn katalizatora sa različitim sadržajem Zn. Nanočestice PtZn istaložene na ugljeničnom materijalu Vulcan XC-72R velike površine, sintetisane su poliol metodom pomoću mikrotalasne pećnice, dajući kontrolu nad veličinom i disperzijom nanočestica. Za ispitivanje elektrohemijskog ponašanja sintetisanih katalizatora PtZn/C (90:10); PtZn/C (85:15) i PtZn/C (75:25) korišćeni su ciklična voltametrija i elektrooksidacija adsorbovanog CO. Utvrđeno je da PtZn/C katalizatori imaju visoke elektrokatalitičke performanse u reakcijama oksidacije metanola. Poređenjem katalizatora sa različitim sadržajem Zn, zaključeno je da PtZn/C (90:10) katalizator ima bolju aktivnost u odnosu na PtZn (85:15) i PtZn (75:25) katalizatore. Uočena visoka katalitička aktivnost sintetisanih katalizatora u reakciji oksidacije metanola može se pripisati veoma efikasnoj mikrotalasnoj sintezi i dobro izbalansiranom dodavanju Zn kao legirajućeg metala sa različitim sadržajem u PtZn/C katalizatorima.
PB  - Crnogorsko društvo za koroziju, zaštitu materijala i zaštitu životne sredine
C3  - 5th International symposium on corrosion and materials protection, environmental protection and protection against fire, Proceedings, 26-29. September 2023, Bar / Peti međunarodni simpozijum o koroziji i zaštiti materijala, životnoj sredini i zaštiti od požara, knjiga radova, 26-29. septembar 2023 godine, Bar
T1  - The influence of Zn content on the activity of PtZn catalysts in methanol electrooxidation reaction
T1  - Uticaj sadržaja Zn na aktivnost PtZn katalizatora u reakciji elektrooksidacije metanola
SP  - 49
EP  - 56
UR  - https://hdl.handle.net/21.15107/rcub_cer_6790
ER  - 
@conference{
author = "Milošević, Dragana and Stevanović, Sanja and Nikolić, Nebojša D. and Tripković, Dušan and Vukašinović, Ivana and Ćosović, Vladan and Nikolić, Nebojša D.",
year = "2023",
abstract = "This work highlights a simple and efficient approach for the development of
PtZn catalyst materials with tunable content of Zn. Nanoparticles of PtZn
deposited on high surface area carbon Vulcan XC-72R material were
synthesized by microwave-assisted polyol method, giving control over the size
and dispersion of nanoparticles. Cyclic voltammetry and electrooxidation of
adsorbed CO were used to investigate the electrochemical behavior of
synthesized catalysts: PtZn/C (90:10); PtZn/C (85:15) and PtZn/C (75:25). It
was found that PtZn/C catalysts have high electrocatalytic performance in
methanol oxidation reactions. In comparison to the corresponding catalyst with
the different Zn loading, it was concluded that PtZn (90:10)/C catalyst had
better activity compared to PtZn/C (85:15) and PtZn/C (75:25) catalysts. The
observed high catalytic activity in the methanol oxidation reaction of
synthesized catalysts can be ascribed to the very efficient microwave synthesis
and well-balanced content of Zn as alloying metal., Ovaj rad predstavlja jednostavan i efikasan pristup za razvoj PtZn katalizatora sa različitim sadržajem Zn. Nanočestice PtZn istaložene na ugljeničnom materijalu Vulcan XC-72R velike površine, sintetisane su poliol metodom pomoću mikrotalasne pećnice, dajući kontrolu nad veličinom i disperzijom nanočestica. Za ispitivanje elektrohemijskog ponašanja sintetisanih katalizatora PtZn/C (90:10); PtZn/C (85:15) i PtZn/C (75:25) korišćeni su ciklična voltametrija i elektrooksidacija adsorbovanog CO. Utvrđeno je da PtZn/C katalizatori imaju visoke elektrokatalitičke performanse u reakcijama oksidacije metanola. Poređenjem katalizatora sa različitim sadržajem Zn, zaključeno je da PtZn/C (90:10) katalizator ima bolju aktivnost u odnosu na PtZn (85:15) i PtZn (75:25) katalizatore. Uočena visoka katalitička aktivnost sintetisanih katalizatora u reakciji oksidacije metanola može se pripisati veoma efikasnoj mikrotalasnoj sintezi i dobro izbalansiranom dodavanju Zn kao legirajućeg metala sa različitim sadržajem u PtZn/C katalizatorima.",
publisher = "Crnogorsko društvo za koroziju, zaštitu materijala i zaštitu životne sredine",
journal = "5th International symposium on corrosion and materials protection, environmental protection and protection against fire, Proceedings, 26-29. September 2023, Bar / Peti međunarodni simpozijum o koroziji i zaštiti materijala, životnoj sredini i zaštiti od požara, knjiga radova, 26-29. septembar 2023 godine, Bar",
title = "The influence of Zn content on the activity of PtZn catalysts in methanol electrooxidation reaction, Uticaj sadržaja Zn na aktivnost PtZn katalizatora u reakciji elektrooksidacije metanola",
pages = "49-56",
url = "https://hdl.handle.net/21.15107/rcub_cer_6790"
}
Milošević, D., Stevanović, S., Nikolić, N. D., Tripković, D., Vukašinović, I., Ćosović, V.,& Nikolić, N. D.. (2023). The influence of Zn content on the activity of PtZn catalysts in methanol electrooxidation reaction. in 5th International symposium on corrosion and materials protection, environmental protection and protection against fire, Proceedings, 26-29. September 2023, Bar / Peti međunarodni simpozijum o koroziji i zaštiti materijala, životnoj sredini i zaštiti od požara, knjiga radova, 26-29. septembar 2023 godine, Bar
Crnogorsko društvo za koroziju, zaštitu materijala i zaštitu životne sredine., 49-56.
https://hdl.handle.net/21.15107/rcub_cer_6790
Milošević D, Stevanović S, Nikolić ND, Tripković D, Vukašinović I, Ćosović V, Nikolić ND. The influence of Zn content on the activity of PtZn catalysts in methanol electrooxidation reaction. in 5th International symposium on corrosion and materials protection, environmental protection and protection against fire, Proceedings, 26-29. September 2023, Bar / Peti međunarodni simpozijum o koroziji i zaštiti materijala, životnoj sredini i zaštiti od požara, knjiga radova, 26-29. septembar 2023 godine, Bar. 2023;:49-56.
https://hdl.handle.net/21.15107/rcub_cer_6790 .
Milošević, Dragana, Stevanović, Sanja, Nikolić, Nebojša D., Tripković, Dušan, Vukašinović, Ivana, Ćosović, Vladan, Nikolić, Nebojša D., "The influence of Zn content on the activity of PtZn catalysts in methanol electrooxidation reaction" in 5th International symposium on corrosion and materials protection, environmental protection and protection against fire, Proceedings, 26-29. September 2023, Bar / Peti međunarodni simpozijum o koroziji i zaštiti materijala, životnoj sredini i zaštiti od požara, knjiga radova, 26-29. septembar 2023 godine, Bar (2023):49-56,
https://hdl.handle.net/21.15107/rcub_cer_6790 .

Nucleation and growth of tin dendrites from alkaline electrolyte

Nikolić, Nebojša D.; Lović, Jelena D.; Milošević, Dragana; Stevanović, Sanja

(Crnogorsko društvo za koroziju, zaštitu materijala i zaštitu životne sredine, 2023)

TY  - CONF
AU  - Nikolić, Nebojša D.
AU  - Lović, Jelena D.
AU  - Milošević, Dragana
AU  - Stevanović, Sanja
PY  - 2023
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6791
AB  - Procesi nukleacije i rasta dendrita kalaja iz alkalnog hidroksidnog elektrolita su istraženi hronoamperometrijom i skenirajućom elektronskom mikroskopskom (SEM) analizom taloga potenciostatski elektrohemijski istaloženih na selektivnim katodnim potencijalima. Za određivanje tipa nukleacije korišćen je model Šarifkera i Hilsa (SH) zasnovan na trodimenzionalnoj nukleaciji sa difuziono kontrolisanim rastom. Bez obzira na primenjeni katodni potencijal, dobijene bezdimenzionalne zavisnosti su bile niže od teorijskih predviđanja za progresivni tip nukleacije. Sa druge strane, morfologija dendrita kalaja je snažno zavisila od primenjenog katodnog potencijala, te igličasti ili dendriti nalik paprati su bili formirani potenciostatskim režimom elektrohemijskog taloženja. Na osnovu morfološke analize Sn dendrita elektrohemijski istaloženih različitim količinama elektriciteta, zaključeno je da nukleacija Sn iz ispitivanog elektrolita ipak sledi progresivni tip, i da se odstupanje od teorijskih predviđanja za ovaj tip može pripisati upotrebi kompleksnog elektrolita za elektrohemijsko taloženje kalaja.
AB  - The processes of nucleation and growth of tin dendrites from alkaline hydroxide electrolyte have been investigated by chronoamperometry and by the scanning electron microscopic (SEM) analysis of the deposits potentiostatically electrodeposited at the selected cathodic potentials. The Scharifker and Hills (SH) model based on three dimensional nucleation with diffusion controlled growth was used for a determination of a nucleation type. Irrespective of the applied cathodic potential, the obtained dimensionless dependencies were lower than the theoretical predictions for the progressive type of nucleation. On the other hand, morphology of Sn dendrites strongly depended on the applied cathodic potential, and either the needle-like or the fern-like dendrites were formed by the potentiostatic regime of electrodeposition. On the basis of the morphological analysis of Sn dendrites electrodeposited with various amounts of the electricity, it is concluded that nucleation of Sn from the examined electrolyte still follows the progressive type, and that the deviation of the theoretical predictions for this type can be attributed to use of complex electrolyte for Sn electrodeposition.
PB  - Crnogorsko društvo za koroziju, zaštitu materijala i zaštitu životne sredine
C3  - 5th International symposium on corrosion and materials protection, environmental protection and protection against fire, Proceedings, 26-29. September 2023, Bar / Peti međunarodni simpozijum o koroziji i zaštiti materijala, životnoj sredini i zaštiti od požara, knjiga radova, 26-29. septembar 2023 godine, Bar
T1  - Nucleation and growth of tin dendrites from alkaline electrolyte
T1  - Nukleacija i rast dendrita kalaja iz alkalnog elektrolita
SP  - 57
EP  - 63
UR  - https://hdl.handle.net/21.15107/rcub_cer_6791
ER  - 
@conference{
author = "Nikolić, Nebojša D. and Lović, Jelena D. and Milošević, Dragana and Stevanović, Sanja",
year = "2023",
abstract = "Procesi nukleacije i rasta dendrita kalaja iz alkalnog hidroksidnog elektrolita su istraženi hronoamperometrijom i skenirajućom elektronskom mikroskopskom (SEM) analizom taloga potenciostatski elektrohemijski istaloženih na selektivnim katodnim potencijalima. Za određivanje tipa nukleacije korišćen je model Šarifkera i Hilsa (SH) zasnovan na trodimenzionalnoj nukleaciji sa difuziono kontrolisanim rastom. Bez obzira na primenjeni katodni potencijal, dobijene bezdimenzionalne zavisnosti su bile niže od teorijskih predviđanja za progresivni tip nukleacije. Sa druge strane, morfologija dendrita kalaja je snažno zavisila od primenjenog katodnog potencijala, te igličasti ili dendriti nalik paprati su bili formirani potenciostatskim režimom elektrohemijskog taloženja. Na osnovu morfološke analize Sn dendrita elektrohemijski istaloženih različitim količinama elektriciteta, zaključeno je da nukleacija Sn iz ispitivanog elektrolita ipak sledi progresivni tip, i da se odstupanje od teorijskih predviđanja za ovaj tip može pripisati upotrebi kompleksnog elektrolita za elektrohemijsko taloženje kalaja., The processes of nucleation and growth of tin dendrites from alkaline hydroxide electrolyte have been investigated by chronoamperometry and by the scanning electron microscopic (SEM) analysis of the deposits potentiostatically electrodeposited at the selected cathodic potentials. The Scharifker and Hills (SH) model based on three dimensional nucleation with diffusion controlled growth was used for a determination of a nucleation type. Irrespective of the applied cathodic potential, the obtained dimensionless dependencies were lower than the theoretical predictions for the progressive type of nucleation. On the other hand, morphology of Sn dendrites strongly depended on the applied cathodic potential, and either the needle-like or the fern-like dendrites were formed by the potentiostatic regime of electrodeposition. On the basis of the morphological analysis of Sn dendrites electrodeposited with various amounts of the electricity, it is concluded that nucleation of Sn from the examined electrolyte still follows the progressive type, and that the deviation of the theoretical predictions for this type can be attributed to use of complex electrolyte for Sn electrodeposition.",
publisher = "Crnogorsko društvo za koroziju, zaštitu materijala i zaštitu životne sredine",
journal = "5th International symposium on corrosion and materials protection, environmental protection and protection against fire, Proceedings, 26-29. September 2023, Bar / Peti međunarodni simpozijum o koroziji i zaštiti materijala, životnoj sredini i zaštiti od požara, knjiga radova, 26-29. septembar 2023 godine, Bar",
title = "Nucleation and growth of tin dendrites from alkaline electrolyte, Nukleacija i rast dendrita kalaja iz alkalnog elektrolita",
pages = "57-63",
url = "https://hdl.handle.net/21.15107/rcub_cer_6791"
}
Nikolić, N. D., Lović, J. D., Milošević, D.,& Stevanović, S.. (2023). Nucleation and growth of tin dendrites from alkaline electrolyte. in 5th International symposium on corrosion and materials protection, environmental protection and protection against fire, Proceedings, 26-29. September 2023, Bar / Peti međunarodni simpozijum o koroziji i zaštiti materijala, životnoj sredini i zaštiti od požara, knjiga radova, 26-29. septembar 2023 godine, Bar
Crnogorsko društvo za koroziju, zaštitu materijala i zaštitu životne sredine., 57-63.
https://hdl.handle.net/21.15107/rcub_cer_6791
Nikolić ND, Lović JD, Milošević D, Stevanović S. Nucleation and growth of tin dendrites from alkaline electrolyte. in 5th International symposium on corrosion and materials protection, environmental protection and protection against fire, Proceedings, 26-29. September 2023, Bar / Peti međunarodni simpozijum o koroziji i zaštiti materijala, životnoj sredini i zaštiti od požara, knjiga radova, 26-29. septembar 2023 godine, Bar. 2023;:57-63.
https://hdl.handle.net/21.15107/rcub_cer_6791 .
Nikolić, Nebojša D., Lović, Jelena D., Milošević, Dragana, Stevanović, Sanja, "Nucleation and growth of tin dendrites from alkaline electrolyte" in 5th International symposium on corrosion and materials protection, environmental protection and protection against fire, Proceedings, 26-29. September 2023, Bar / Peti međunarodni simpozijum o koroziji i zaštiti materijala, životnoj sredini i zaštiti od požara, knjiga radova, 26-29. septembar 2023 godine, Bar (2023):57-63,
https://hdl.handle.net/21.15107/rcub_cer_6791 .

Ispitivanje stabilnosti PtZn/C katalizatora za reakciju elektrooksidacije metanola, etanola i mravlje kiseline

Stevanović, Sanja; Milošević, Dragana; Tripković, Dušan; Nikolić, Nebojša D.

(Crnogorsko društvo za koroziju, zaštitu materijala i zaštitu životne sredine, 2023)

TY  - CONF
AU  - Stevanović, Sanja
AU  - Milošević, Dragana
AU  - Tripković, Dušan
AU  - Nikolić, Nebojša D.
PY  - 2023
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6792
AB  - PtZn katalizator deponovan na ugljenik razvijene površine Vulcan XC-72R
sintetizovan je poliol metodom uz pomoć mikrotalasne pećnice i testiran za
reakciju elektrooksidacije metanola, etanola i mravlje kiseline u sumpornoj
kiselini. Poređenje stabilnosti PtZn/C katalizatora za reakciju elektrooksidacije
metanola, etanola i mravlje kiseline dobijeno je produženim cikliziranjem.
Fizičkohemijska svojstva dobijenih katalizatora su okarakterisana
transmisijskom elektronskom mikroskopijom (TEM), termogravimetrijskom
(TGA) analizom i energetsko disperzivnom spektroskopijom (EDS). Prema
TEM analizi, PtZn/C katalizator ima male čestice prilično slične veličine
između 1 i 2 nm. TGA analiza je pokazala 27,68 tež. % metala za PtZn/C
katalizator. Hemijski sastav PtZn/C katalizatora je pokazao da je odnos Pt:Zn u
katalizatoru 87 tež.% : 13 tež.%. Dodavanje Zn u Pt značajno poboljšava
aktivnost za oksidaciju metanola i etanola u poređenju sa Pt/C referentnim
katalizatorom. Testovi stabilnosti su potvrdili da su PtZn/C katalizatori
najstabilniji za reakciju elektrooksidacije metanola. Uočena visoka katalitička
aktivnost i dobra stabilnost u reakciji oksidacije metanola sintetizovanog
katalizatora mogu se pripisati veoma efikasnoj mikrotalasnoj sintezi i dobro
izbalansiranom sadržaju Zn kao legirajućeg metala.
AB  - PtZn catalyst material deposited on high surface area carbon Vulcan XC-72R
was synthesized by microwave-assisted polyol method and tested for methanol,
ethanol and formic acid electrooxidation reaction in sulphuric acid. The
comparison of the stability behaviour of the PtZn/C catalyst for the methanol,
ethanol and formic acid electrooxidation reaction were obtained from
prolonged cycling. Physicochemical properties of obtained catalysts were
characterized by transmission electron microscopy (TEM), thermogravimetric (TGA) analysis and energy dispersive spectroscopy (EDS). According to TEM
analysis PtZn/C catalyst have small particles of rather similar size between 1
and 2 nm. TGA analysis revealed 27.68 wt. % of metals in PtZn/C catalyst
powder. The chemical composition of the PtZn/C catalyst was showed that the
Pt:Zn ratio for the PtZn/C catalyst is 87 wt.% : 13wt.%. Addition of Zn to Pt
significantly improves methanol and ethanol oxidation activity in comparison to
Pt/C benchmark catalyst. Long term stability tests confirmed that PtZn/C
catalysts are notably less poisoned for the methanol electroxidation reaction.
The observed high catalytic activity and good stability in the methanol
oxidation reaction of synthesized catalyst can be ascribed to the very efficient
microwave synthesis and well-balanced content of Zn as alloying metal.
PB  - Crnogorsko društvo za koroziju, zaštitu materijala i zaštitu životne sredine
C3  - 5th International symposium on corrosion and materials protection, environmental protection and protection against fire, Proceedings, 26-29. September 2023, Bar / Peti međunarodni simpozijum o koroziji i zaštiti materijala, životnoj sredini i zaštiti od požara, knjiga radova, 26-29. septembar 2023 godine, Ba
T1  - Ispitivanje stabilnosti PtZn/C katalizatora za reakciju elektrooksidacije metanola, etanola i mravlje kiseline
T1  - Stability tests investigations for PtZn/C catalyst in methanol, ethanol and formic acid electrooxidation reaction
SP  - 64
EP  - 72
UR  - https://hdl.handle.net/21.15107/rcub_cer_6792
ER  - 
@conference{
author = "Stevanović, Sanja and Milošević, Dragana and Tripković, Dušan and Nikolić, Nebojša D.",
year = "2023",
abstract = "PtZn katalizator deponovan na ugljenik razvijene površine Vulcan XC-72R
sintetizovan je poliol metodom uz pomoć mikrotalasne pećnice i testiran za
reakciju elektrooksidacije metanola, etanola i mravlje kiseline u sumpornoj
kiselini. Poređenje stabilnosti PtZn/C katalizatora za reakciju elektrooksidacije
metanola, etanola i mravlje kiseline dobijeno je produženim cikliziranjem.
Fizičkohemijska svojstva dobijenih katalizatora su okarakterisana
transmisijskom elektronskom mikroskopijom (TEM), termogravimetrijskom
(TGA) analizom i energetsko disperzivnom spektroskopijom (EDS). Prema
TEM analizi, PtZn/C katalizator ima male čestice prilično slične veličine
između 1 i 2 nm. TGA analiza je pokazala 27,68 tež. % metala za PtZn/C
katalizator. Hemijski sastav PtZn/C katalizatora je pokazao da je odnos Pt:Zn u
katalizatoru 87 tež.% : 13 tež.%. Dodavanje Zn u Pt značajno poboljšava
aktivnost za oksidaciju metanola i etanola u poređenju sa Pt/C referentnim
katalizatorom. Testovi stabilnosti su potvrdili da su PtZn/C katalizatori
najstabilniji za reakciju elektrooksidacije metanola. Uočena visoka katalitička
aktivnost i dobra stabilnost u reakciji oksidacije metanola sintetizovanog
katalizatora mogu se pripisati veoma efikasnoj mikrotalasnoj sintezi i dobro
izbalansiranom sadržaju Zn kao legirajućeg metala., PtZn catalyst material deposited on high surface area carbon Vulcan XC-72R
was synthesized by microwave-assisted polyol method and tested for methanol,
ethanol and formic acid electrooxidation reaction in sulphuric acid. The
comparison of the stability behaviour of the PtZn/C catalyst for the methanol,
ethanol and formic acid electrooxidation reaction were obtained from
prolonged cycling. Physicochemical properties of obtained catalysts were
characterized by transmission electron microscopy (TEM), thermogravimetric (TGA) analysis and energy dispersive spectroscopy (EDS). According to TEM
analysis PtZn/C catalyst have small particles of rather similar size between 1
and 2 nm. TGA analysis revealed 27.68 wt. % of metals in PtZn/C catalyst
powder. The chemical composition of the PtZn/C catalyst was showed that the
Pt:Zn ratio for the PtZn/C catalyst is 87 wt.% : 13wt.%. Addition of Zn to Pt
significantly improves methanol and ethanol oxidation activity in comparison to
Pt/C benchmark catalyst. Long term stability tests confirmed that PtZn/C
catalysts are notably less poisoned for the methanol electroxidation reaction.
The observed high catalytic activity and good stability in the methanol
oxidation reaction of synthesized catalyst can be ascribed to the very efficient
microwave synthesis and well-balanced content of Zn as alloying metal.",
publisher = "Crnogorsko društvo za koroziju, zaštitu materijala i zaštitu životne sredine",
journal = "5th International symposium on corrosion and materials protection, environmental protection and protection against fire, Proceedings, 26-29. September 2023, Bar / Peti međunarodni simpozijum o koroziji i zaštiti materijala, životnoj sredini i zaštiti od požara, knjiga radova, 26-29. septembar 2023 godine, Ba",
title = "Ispitivanje stabilnosti PtZn/C katalizatora za reakciju elektrooksidacije metanola, etanola i mravlje kiseline, Stability tests investigations for PtZn/C catalyst in methanol, ethanol and formic acid electrooxidation reaction",
pages = "64-72",
url = "https://hdl.handle.net/21.15107/rcub_cer_6792"
}
Stevanović, S., Milošević, D., Tripković, D.,& Nikolić, N. D.. (2023). Ispitivanje stabilnosti PtZn/C katalizatora za reakciju elektrooksidacije metanola, etanola i mravlje kiseline. in 5th International symposium on corrosion and materials protection, environmental protection and protection against fire, Proceedings, 26-29. September 2023, Bar / Peti međunarodni simpozijum o koroziji i zaštiti materijala, životnoj sredini i zaštiti od požara, knjiga radova, 26-29. septembar 2023 godine, Ba
Crnogorsko društvo za koroziju, zaštitu materijala i zaštitu životne sredine., 64-72.
https://hdl.handle.net/21.15107/rcub_cer_6792
Stevanović S, Milošević D, Tripković D, Nikolić ND. Ispitivanje stabilnosti PtZn/C katalizatora za reakciju elektrooksidacije metanola, etanola i mravlje kiseline. in 5th International symposium on corrosion and materials protection, environmental protection and protection against fire, Proceedings, 26-29. September 2023, Bar / Peti međunarodni simpozijum o koroziji i zaštiti materijala, životnoj sredini i zaštiti od požara, knjiga radova, 26-29. septembar 2023 godine, Ba. 2023;:64-72.
https://hdl.handle.net/21.15107/rcub_cer_6792 .
Stevanović, Sanja, Milošević, Dragana, Tripković, Dušan, Nikolić, Nebojša D., "Ispitivanje stabilnosti PtZn/C katalizatora za reakciju elektrooksidacije metanola, etanola i mravlje kiseline" in 5th International symposium on corrosion and materials protection, environmental protection and protection against fire, Proceedings, 26-29. September 2023, Bar / Peti međunarodni simpozijum o koroziji i zaštiti materijala, životnoj sredini i zaštiti od požara, knjiga radova, 26-29. septembar 2023 godine, Ba (2023):64-72,
https://hdl.handle.net/21.15107/rcub_cer_6792 .

Mikrotalasna sinteza platinskih legura za uspesnu oksidaciju metanola u gorivnim spregovima

Stevanović, Sanja; Milošević, Dragana; Tripković, Dušan; Nikolić, Nebojša D.

(Crnogorsko društvo za koroziju, zaštitu materijala i zaštitu životne sredine, 2023)

TY  - CONF
AU  - Stevanović, Sanja
AU  - Milošević, Dragana
AU  - Tripković, Dušan
AU  - Nikolić, Nebojša D.
PY  - 2023
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6793
AB  - Ova studija je fokusirana na pronalaženje novih načina sinteze katalizatora na
bazi platine koji pokazuju dobru efikasnost za reakciju oksidacije metanola.
Nanočestice PtZn, PtSn i PtSnZn su sintetizovane korišćenjem poliol metode uz
pomoć mikrotalasnog zagrevanja i deponovane na ugljeničnu podlogu Vulcan
XC-72R. Elektrohemijsko ponašanje sintetizovanih katalizatora je ispitivano
korišćenjem ciklične voltametrije i hronoamperometrijske tehnike.
Fizičkohemijska svojstva dobijenih katalizatora su okarakterisana
transmisionom elektronskom mikroskopijom (TEM), termogravimetrijskom
analizom (TGA) i energetsko disperzivnom spektroskopijom (EDS). Prema
TEM analizi svi katalizatori imaju male čestice prilično slične veličine između 1
i 3 nm. Dobijeni rezultati su potvrdili uspešnu sintezu katalizatora na bazi Pt.
Dodavanje Zn i Sn u Pt katalizator značajno poboljšava aktivnost oksidacije
metanola u poređenju sa Pt/C referentnim katalizatorom. Testovi stabilnosti
takođe dokazuju slabije trovanje i ukazuju na bolju stabilnost i veću toleranciju
na CO intermedijere. Uočena visoka katalitička aktivnost i dobra stabilnost u
reakciji oksidacije metanola sintetizovanih katalizatora mogu se pripisati
veoma efikasnoj mikrotalasnoj sintezi i dobro izbalansiranom sadržaju Zn i Sn
kao legirajućih metala.
AB  - This study is focused on novel ways for creating Pt alloy catalysts that are more
effective for the methanol oxidation reaction. PtZn, PtSn and PtSnZn
nanoparticles were produced using the microwave assisted polyol method and
were supported on high surface area carbon Vulcan XC-72R material. The
electrochemical behaviour of synthesized catalysts was investigated utilizing
the cyclic voltammetry and chronoamperometric technique. To determine the catalyst's physicochemical characteristics, transmission electron microscopy
analysis (TEM), energy dispersive spectroscopy (EDS) and thermogravimetric
analysis (TGA) were used. According to TEM analysis all catalysts have small
particles of rather similar size between 1 and 3 nm. The obtained results
confirmed the successful synthesis of Pt-based catalyst. Addition of Zn and Sn
to Pt significantly improves methanol oxidation activity in comparison to Pt/C
benchmark catalyst. Stability tests also prove the lower poisoning and indicate
better stability and higher tolerance to CO-like intermediaries. The observed
high catalytic activity and good stability in the methanol oxidation reaction of
synthesized catalyst can be ascribed to the very efficient microwave synthesis
and well-balanced content of Zn and Sn as alloying metal.
PB  - Crnogorsko društvo za koroziju, zaštitu materijala i zaštitu životne sredine
C3  - 5th International symposium on corrosion and materials protection, environmental protection and protection against fire, Proceedings, 26-29. September 2023, Bar / Peti međunarodni simpozijum o koroziji i zaštiti materijala, životnoj sredini i zaštiti od požara, knjiga radova, 26-29. septembar 2023 godine, Bar
T1  - Mikrotalasna sinteza platinskih legura za uspesnu oksidaciju metanola u gorivnim spregovima
T1  - Microwave-assisted synthesis of Pt-alloy catalysts for successful methanol oxidation reaction in fuel cells
SP  - 81
EP  - 86
UR  - https://hdl.handle.net/21.15107/rcub_cer_6793
ER  - 
@conference{
author = "Stevanović, Sanja and Milošević, Dragana and Tripković, Dušan and Nikolić, Nebojša D.",
year = "2023",
abstract = "Ova studija je fokusirana na pronalaženje novih načina sinteze katalizatora na
bazi platine koji pokazuju dobru efikasnost za reakciju oksidacije metanola.
Nanočestice PtZn, PtSn i PtSnZn su sintetizovane korišćenjem poliol metode uz
pomoć mikrotalasnog zagrevanja i deponovane na ugljeničnu podlogu Vulcan
XC-72R. Elektrohemijsko ponašanje sintetizovanih katalizatora je ispitivano
korišćenjem ciklične voltametrije i hronoamperometrijske tehnike.
Fizičkohemijska svojstva dobijenih katalizatora su okarakterisana
transmisionom elektronskom mikroskopijom (TEM), termogravimetrijskom
analizom (TGA) i energetsko disperzivnom spektroskopijom (EDS). Prema
TEM analizi svi katalizatori imaju male čestice prilično slične veličine između 1
i 3 nm. Dobijeni rezultati su potvrdili uspešnu sintezu katalizatora na bazi Pt.
Dodavanje Zn i Sn u Pt katalizator značajno poboljšava aktivnost oksidacije
metanola u poređenju sa Pt/C referentnim katalizatorom. Testovi stabilnosti
takođe dokazuju slabije trovanje i ukazuju na bolju stabilnost i veću toleranciju
na CO intermedijere. Uočena visoka katalitička aktivnost i dobra stabilnost u
reakciji oksidacije metanola sintetizovanih katalizatora mogu se pripisati
veoma efikasnoj mikrotalasnoj sintezi i dobro izbalansiranom sadržaju Zn i Sn
kao legirajućih metala., This study is focused on novel ways for creating Pt alloy catalysts that are more
effective for the methanol oxidation reaction. PtZn, PtSn and PtSnZn
nanoparticles were produced using the microwave assisted polyol method and
were supported on high surface area carbon Vulcan XC-72R material. The
electrochemical behaviour of synthesized catalysts was investigated utilizing
the cyclic voltammetry and chronoamperometric technique. To determine the catalyst's physicochemical characteristics, transmission electron microscopy
analysis (TEM), energy dispersive spectroscopy (EDS) and thermogravimetric
analysis (TGA) were used. According to TEM analysis all catalysts have small
particles of rather similar size between 1 and 3 nm. The obtained results
confirmed the successful synthesis of Pt-based catalyst. Addition of Zn and Sn
to Pt significantly improves methanol oxidation activity in comparison to Pt/C
benchmark catalyst. Stability tests also prove the lower poisoning and indicate
better stability and higher tolerance to CO-like intermediaries. The observed
high catalytic activity and good stability in the methanol oxidation reaction of
synthesized catalyst can be ascribed to the very efficient microwave synthesis
and well-balanced content of Zn and Sn as alloying metal.",
publisher = "Crnogorsko društvo za koroziju, zaštitu materijala i zaštitu životne sredine",
journal = "5th International symposium on corrosion and materials protection, environmental protection and protection against fire, Proceedings, 26-29. September 2023, Bar / Peti međunarodni simpozijum o koroziji i zaštiti materijala, životnoj sredini i zaštiti od požara, knjiga radova, 26-29. septembar 2023 godine, Bar",
title = "Mikrotalasna sinteza platinskih legura za uspesnu oksidaciju metanola u gorivnim spregovima, Microwave-assisted synthesis of Pt-alloy catalysts for successful methanol oxidation reaction in fuel cells",
pages = "81-86",
url = "https://hdl.handle.net/21.15107/rcub_cer_6793"
}
Stevanović, S., Milošević, D., Tripković, D.,& Nikolić, N. D.. (2023). Mikrotalasna sinteza platinskih legura za uspesnu oksidaciju metanola u gorivnim spregovima. in 5th International symposium on corrosion and materials protection, environmental protection and protection against fire, Proceedings, 26-29. September 2023, Bar / Peti međunarodni simpozijum o koroziji i zaštiti materijala, životnoj sredini i zaštiti od požara, knjiga radova, 26-29. septembar 2023 godine, Bar
Crnogorsko društvo za koroziju, zaštitu materijala i zaštitu životne sredine., 81-86.
https://hdl.handle.net/21.15107/rcub_cer_6793
Stevanović S, Milošević D, Tripković D, Nikolić ND. Mikrotalasna sinteza platinskih legura za uspesnu oksidaciju metanola u gorivnim spregovima. in 5th International symposium on corrosion and materials protection, environmental protection and protection against fire, Proceedings, 26-29. September 2023, Bar / Peti međunarodni simpozijum o koroziji i zaštiti materijala, životnoj sredini i zaštiti od požara, knjiga radova, 26-29. septembar 2023 godine, Bar. 2023;:81-86.
https://hdl.handle.net/21.15107/rcub_cer_6793 .
Stevanović, Sanja, Milošević, Dragana, Tripković, Dušan, Nikolić, Nebojša D., "Mikrotalasna sinteza platinskih legura za uspesnu oksidaciju metanola u gorivnim spregovima" in 5th International symposium on corrosion and materials protection, environmental protection and protection against fire, Proceedings, 26-29. September 2023, Bar / Peti međunarodni simpozijum o koroziji i zaštiti materijala, životnoj sredini i zaštiti od požara, knjiga radova, 26-29. septembar 2023 godine, Bar (2023):81-86,
https://hdl.handle.net/21.15107/rcub_cer_6793 .

The impact of the polycaprolactone content on the properties of polyurethane networks

Stefanović, Ivan; Džunuzović, Jasna; Džunuzović, Enis; Stevanović, Sanja; Dapčević, Aleksandra; Savić, Sanja; Giuseppe, Lama

(Elsevier, 2023)

TY  - JOUR
AU  - Stefanović, Ivan
AU  - Džunuzović, Jasna
AU  - Džunuzović, Enis
AU  - Stevanović, Sanja
AU  - Dapčević, Aleksandra
AU  - Savić, Sanja
AU  - Giuseppe, Lama
PY  - 2023
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6119
AB  - The influence of soft segment (SS) content on the properties of novel polyurethane networks (PUNs), prepared by a two-step polymerization in a solvent mixture, was investigated in this work. Hyperbranched polyester of the third pseudo generation (BH-30) was used as a crosslinker, and together with isophorone diisocyanate (IPDI) was applied to build hard segments (HS) in PUNs. On the other hand, SS of the prepared PUNs are based on polycaprolactone (PCL). The content of SS in PUNs varied from 10 to 50 wt%. The structural, thermal and mechanical properties, swelling behavior, as well as morphology of PUNs, were explored by various experimental methods. Performed investigations have shown that the use of BH-30 led to the emergence of relatively high crosslinking density and good mechanical properties, and that all features of PUNs significantly depend on the SS content. Higher PCL content caused presence of certain crystallinity, better thermal stability, more pronounced microphase separated morphology, but also lower degree of hydrogen bonding, crosslinking density and storage modulus of the prepared PUNs. The obtained results have shown that the properties of PUNs can be easily varied and customized to different practical needs.
PB  - Elsevier
T2  - Materials Today Communications
T1  - The impact of the polycaprolactone content on the properties of polyurethane networks
VL  - 35
SP  - 105721
DO  - 10.1016/j.mtcomm.2023.105721
ER  - 
@article{
author = "Stefanović, Ivan and Džunuzović, Jasna and Džunuzović, Enis and Stevanović, Sanja and Dapčević, Aleksandra and Savić, Sanja and Giuseppe, Lama",
year = "2023",
abstract = "The influence of soft segment (SS) content on the properties of novel polyurethane networks (PUNs), prepared by a two-step polymerization in a solvent mixture, was investigated in this work. Hyperbranched polyester of the third pseudo generation (BH-30) was used as a crosslinker, and together with isophorone diisocyanate (IPDI) was applied to build hard segments (HS) in PUNs. On the other hand, SS of the prepared PUNs are based on polycaprolactone (PCL). The content of SS in PUNs varied from 10 to 50 wt%. The structural, thermal and mechanical properties, swelling behavior, as well as morphology of PUNs, were explored by various experimental methods. Performed investigations have shown that the use of BH-30 led to the emergence of relatively high crosslinking density and good mechanical properties, and that all features of PUNs significantly depend on the SS content. Higher PCL content caused presence of certain crystallinity, better thermal stability, more pronounced microphase separated morphology, but also lower degree of hydrogen bonding, crosslinking density and storage modulus of the prepared PUNs. The obtained results have shown that the properties of PUNs can be easily varied and customized to different practical needs.",
publisher = "Elsevier",
journal = "Materials Today Communications",
title = "The impact of the polycaprolactone content on the properties of polyurethane networks",
volume = "35",
pages = "105721",
doi = "10.1016/j.mtcomm.2023.105721"
}
Stefanović, I., Džunuzović, J., Džunuzović, E., Stevanović, S., Dapčević, A., Savić, S.,& Giuseppe, L.. (2023). The impact of the polycaprolactone content on the properties of polyurethane networks. in Materials Today Communications
Elsevier., 35, 105721.
https://doi.org/10.1016/j.mtcomm.2023.105721
Stefanović I, Džunuzović J, Džunuzović E, Stevanović S, Dapčević A, Savić S, Giuseppe L. The impact of the polycaprolactone content on the properties of polyurethane networks. in Materials Today Communications. 2023;35:105721.
doi:10.1016/j.mtcomm.2023.105721 .
Stefanović, Ivan, Džunuzović, Jasna, Džunuzović, Enis, Stevanović, Sanja, Dapčević, Aleksandra, Savić, Sanja, Giuseppe, Lama, "The impact of the polycaprolactone content on the properties of polyurethane networks" in Materials Today Communications, 35 (2023):105721,
https://doi.org/10.1016/j.mtcomm.2023.105721 . .
6
5
6

Green corrosion inhibitors of steel based on peptides and their constituents: a combination of experimental and computational approach

Simović, Anđela; Stevanović, Sanja; Milovanović, Branislav; Etinski, Mihajlo; Bajat, Jelena B.

(Springer, 2023)

TY  - JOUR
AU  - Simović, Anđela
AU  - Stevanović, Sanja
AU  - Milovanović, Branislav
AU  - Etinski, Mihajlo
AU  - Bajat, Jelena B.
PY  - 2023
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6312
AB  - In this work, a tetrafunctional epoxy resin entitled 2,3,4,5-tetraglycidyloxy pentanal (TGP) was tested and investigated as a potential corrosion inhibitor for mild steel (MS) in 0.5 M H2SO4 solution. The corrosion inhibition process for mild steel was employed alongside various techniques, such as potentiodynamic polarization (PDP), electrochemical impedance spectroscopy (EIS), temperature effect (TE), scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDS) and theoretical approaches (DFT, MC, RDF and MD). Further, the corrosion efficacies obtained at the optimum concentration (10−3 M of the TGP) were 85.5% (EIS) and 88.6% (PDP), respectively. The PDP results indicated that the TGP tetrafunctional epoxy resin acted the same as an anodic inhibitor type in 0.5 M H2SO4 solution. SEM and EDS analyses found that the protective layer formed on the MS electrode surface in the presence of TGP could prevent the attack of the sulfur ions. The DFT calculation provided more information regarding the reactivity, geometric properties and the active centers of the corrosion inhibitory efficiency of the tested epoxy resin. RDF, MC and MD simulations showed that the investigated inhibitory resin have a maximum inhibition efficiency in 0.5 M H2SO4 solution.
PB  - Springer
T2  - Journal of Solid State Electrochemistry
T1  - Green corrosion inhibitors of steel based on peptides and their constituents: a combination of experimental and computational approach
DO  - 10.1007/s10008-023-05433-w
ER  - 
@article{
author = "Simović, Anđela and Stevanović, Sanja and Milovanović, Branislav and Etinski, Mihajlo and Bajat, Jelena B.",
year = "2023",
abstract = "In this work, a tetrafunctional epoxy resin entitled 2,3,4,5-tetraglycidyloxy pentanal (TGP) was tested and investigated as a potential corrosion inhibitor for mild steel (MS) in 0.5 M H2SO4 solution. The corrosion inhibition process for mild steel was employed alongside various techniques, such as potentiodynamic polarization (PDP), electrochemical impedance spectroscopy (EIS), temperature effect (TE), scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDS) and theoretical approaches (DFT, MC, RDF and MD). Further, the corrosion efficacies obtained at the optimum concentration (10−3 M of the TGP) were 85.5% (EIS) and 88.6% (PDP), respectively. The PDP results indicated that the TGP tetrafunctional epoxy resin acted the same as an anodic inhibitor type in 0.5 M H2SO4 solution. SEM and EDS analyses found that the protective layer formed on the MS electrode surface in the presence of TGP could prevent the attack of the sulfur ions. The DFT calculation provided more information regarding the reactivity, geometric properties and the active centers of the corrosion inhibitory efficiency of the tested epoxy resin. RDF, MC and MD simulations showed that the investigated inhibitory resin have a maximum inhibition efficiency in 0.5 M H2SO4 solution.",
publisher = "Springer",
journal = "Journal of Solid State Electrochemistry",
title = "Green corrosion inhibitors of steel based on peptides and their constituents: a combination of experimental and computational approach",
doi = "10.1007/s10008-023-05433-w"
}
Simović, A., Stevanović, S., Milovanović, B., Etinski, M.,& Bajat, J. B.. (2023). Green corrosion inhibitors of steel based on peptides and their constituents: a combination of experimental and computational approach. in Journal of Solid State Electrochemistry
Springer..
https://doi.org/10.1007/s10008-023-05433-w
Simović A, Stevanović S, Milovanović B, Etinski M, Bajat JB. Green corrosion inhibitors of steel based on peptides and their constituents: a combination of experimental and computational approach. in Journal of Solid State Electrochemistry. 2023;.
doi:10.1007/s10008-023-05433-w .
Simović, Anđela, Stevanović, Sanja, Milovanović, Branislav, Etinski, Mihajlo, Bajat, Jelena B., "Green corrosion inhibitors of steel based on peptides and their constituents: a combination of experimental and computational approach" in Journal of Solid State Electrochemistry (2023),
https://doi.org/10.1007/s10008-023-05433-w . .
6
6
6

Peptidi i njihove sastavne komponente kao inhibitori korozije čelika: eksperimentalni i teorijski pristup

Simović, Anđela; Stevanović, Sanja; Milovanović, Branislav; Etinski, Mihajlo; Bajat, Jelena

(Srpsko hemijsko društvo, 2023)

TY  - CONF
AU  - Simović, Anđela
AU  - Stevanović, Sanja
AU  - Milovanović, Branislav
AU  - Etinski, Mihajlo
AU  - Bajat, Jelena
PY  - 2023
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/7715
AB  - Ekološki prihvatljivi inhibitori privlače pažnju mnogih istraživača zbog povoljnih
svojstava: biorazgradivost, netoksičnost, dostupnost i obnovljivost. U njih spadaju i
amonokiseline (AK), kao sastojci od vitalnog značaja za sva živa bića. U radu je ispitan
inhibitorski efekat nekoliko AK na čeliku u 1 M HCl: tri samostalne AK, glicin,
glutaminska kiselina i cistein; smeša ove tri AK, kao i njihov dipeptid (glicin i glutaminska
kiselina) i tripeptid glutation (glicin, glutaminska kiselina i cistein). Inhibitorska efikasnot
AK je određena elektrohemijskim merenjima. Meren je ugao kvašenja površine čelika sa
adsorbovanim inhibitorom, energija veza inhibitora i supstrata je određivana XPS
metodom, a topografija AFM. Razlike u vezivanju inhibitora za supstrat su analizirane
teorijskim proračunima.
AB  - Green eco-friendly inhibitors have become very popular due to their remarkable properties
such as biodegradability, environmental acceptability, safety, availability, and
renewability. Amino acids (ACs) are one of them, as constituents of vital importance for
all living beings. Several AC systems were examined in this study as steel inhibitors in 1
M HCl solution: three ACs separately, glycine, glutamic acid and cysteine; their mixture,
as well as their dipeptide (glycine and glutamic acid) and tripeptide glutathione (glycine,
glutamic acid and cysteine). Their inhibition efficiency was evaluated and compared by
electrochemical methods. The steel surface with adsorbed inhibitor was analyzed by
contact angle measurements, AFM and XPS. The intrinsic differences in adsorption
between these green inhibitors were analyzed by theoretical calculations.
PB  - Srpsko hemijsko društvo
PB  - Serbian Chemical Society
C3  - 59. Savetovanje Srpskog hemijskog društva, Kratki izvodi radova, 1. i 2. jun 2023. godine, Novi Sad / 59th Meeting of the Serbian Chemical Society, Book of Abstracts, June 1-2, 2023, Novi Sad, Serbia
T1  - Peptidi i njihove sastavne komponente kao inhibitori korozije čelika: eksperimentalni i teorijski pristup
T1  - Peptides and their constituents as steel corrosion inhibitors: an experimental and theoretical approach
SP  - 60
EP  - 60
UR  - https://hdl.handle.net/21.15107/rcub_cer_7715
ER  - 
@conference{
author = "Simović, Anđela and Stevanović, Sanja and Milovanović, Branislav and Etinski, Mihajlo and Bajat, Jelena",
year = "2023",
abstract = "Ekološki prihvatljivi inhibitori privlače pažnju mnogih istraživača zbog povoljnih
svojstava: biorazgradivost, netoksičnost, dostupnost i obnovljivost. U njih spadaju i
amonokiseline (AK), kao sastojci od vitalnog značaja za sva živa bića. U radu je ispitan
inhibitorski efekat nekoliko AK na čeliku u 1 M HCl: tri samostalne AK, glicin,
glutaminska kiselina i cistein; smeša ove tri AK, kao i njihov dipeptid (glicin i glutaminska
kiselina) i tripeptid glutation (glicin, glutaminska kiselina i cistein). Inhibitorska efikasnot
AK je određena elektrohemijskim merenjima. Meren je ugao kvašenja površine čelika sa
adsorbovanim inhibitorom, energija veza inhibitora i supstrata je određivana XPS
metodom, a topografija AFM. Razlike u vezivanju inhibitora za supstrat su analizirane
teorijskim proračunima., Green eco-friendly inhibitors have become very popular due to their remarkable properties
such as biodegradability, environmental acceptability, safety, availability, and
renewability. Amino acids (ACs) are one of them, as constituents of vital importance for
all living beings. Several AC systems were examined in this study as steel inhibitors in 1
M HCl solution: three ACs separately, glycine, glutamic acid and cysteine; their mixture,
as well as their dipeptide (glycine and glutamic acid) and tripeptide glutathione (glycine,
glutamic acid and cysteine). Their inhibition efficiency was evaluated and compared by
electrochemical methods. The steel surface with adsorbed inhibitor was analyzed by
contact angle measurements, AFM and XPS. The intrinsic differences in adsorption
between these green inhibitors were analyzed by theoretical calculations.",
publisher = "Srpsko hemijsko društvo, Serbian Chemical Society",
journal = "59. Savetovanje Srpskog hemijskog društva, Kratki izvodi radova, 1. i 2. jun 2023. godine, Novi Sad / 59th Meeting of the Serbian Chemical Society, Book of Abstracts, June 1-2, 2023, Novi Sad, Serbia",
title = "Peptidi i njihove sastavne komponente kao inhibitori korozije čelika: eksperimentalni i teorijski pristup, Peptides and their constituents as steel corrosion inhibitors: an experimental and theoretical approach",
pages = "60-60",
url = "https://hdl.handle.net/21.15107/rcub_cer_7715"
}
Simović, A., Stevanović, S., Milovanović, B., Etinski, M.,& Bajat, J.. (2023). Peptidi i njihove sastavne komponente kao inhibitori korozije čelika: eksperimentalni i teorijski pristup. in 59. Savetovanje Srpskog hemijskog društva, Kratki izvodi radova, 1. i 2. jun 2023. godine, Novi Sad / 59th Meeting of the Serbian Chemical Society, Book of Abstracts, June 1-2, 2023, Novi Sad, Serbia
Srpsko hemijsko društvo., 60-60.
https://hdl.handle.net/21.15107/rcub_cer_7715
Simović A, Stevanović S, Milovanović B, Etinski M, Bajat J. Peptidi i njihove sastavne komponente kao inhibitori korozije čelika: eksperimentalni i teorijski pristup. in 59. Savetovanje Srpskog hemijskog društva, Kratki izvodi radova, 1. i 2. jun 2023. godine, Novi Sad / 59th Meeting of the Serbian Chemical Society, Book of Abstracts, June 1-2, 2023, Novi Sad, Serbia. 2023;:60-60.
https://hdl.handle.net/21.15107/rcub_cer_7715 .
Simović, Anđela, Stevanović, Sanja, Milovanović, Branislav, Etinski, Mihajlo, Bajat, Jelena, "Peptidi i njihove sastavne komponente kao inhibitori korozije čelika: eksperimentalni i teorijski pristup" in 59. Savetovanje Srpskog hemijskog društva, Kratki izvodi radova, 1. i 2. jun 2023. godine, Novi Sad / 59th Meeting of the Serbian Chemical Society, Book of Abstracts, June 1-2, 2023, Novi Sad, Serbia (2023):60-60,
https://hdl.handle.net/21.15107/rcub_cer_7715 .