TY  - CONF
AU  - Pergal, Marija
AU  - Rašljić Rafajilović, Milena
AU  - Vićentić, Teodora
AU  - Pašti, Igor
AU  - Bajuk-Bogdanović, Danica
AU  - Radulović, Katarina
AU  - Spasenović, Marko
PY  - 2023
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/7114
AB  - Laser-induced graphene (LIG) has emerged as one of the most promising materials for
flexible functional devices. One-step fabrication of LIG offers advantages such as low cost,
patterning of desired geometries, and high sensitivity. However, previous attempts to obtain
LIG on elastomeric substrates have been unsuccessful, limiting its potential for use in
stretchable electronics. In this study, we propose using a substrate composed of
polydimethylsiloxane (PDMS) and poly(ethylene oxide) (PEO) with a low molecular weight
as a platform for manufacturing LIG. A series of PDMS/PEO materials with varying
concentrations of PEO (1, 5, 10, 20, 30, 40 and 50 wt.%) were prepared using a cast-based
approach, starting from divinyl-terminated-PDMS and poly(methyl-hydrogensiloxane). The
prepared PDMS/PEO/graphene composites were characterized using Raman spectroscopy,
Fourier transform infrared spectroscopy (FTIR), and scanning electron microscopy (SEM)
analysis. FTIR analysis confirmed the structure of the prepared PDMS/PEO and
PDMS/PEO/graphene materials. The results demonstrated that the prepared PDMS/PEO
composites exhibited a higher degree of graphenization compared to pure PDMS networks.
SEM analysis revealed the formation of a porous graphene structure. Based on these findings,
the PDMS/PEO/graphene composites show promise for further investigation as electronic
device applications.
PB  - Belgrade : Serbian Ceramic Society
C3  - Program and book of abstracts - Serbian Ceramics Society Conference - Advanced Ceramics and Application XI, New Frontiers in Multifunctional Material Science and Processing,18-20 th September 2023. Belgrade, Serbia
T1  - Laser-induced graphene on PEO/PDMS composites
SP  - 59
EP  - 59
UR  - https://hdl.handle.net/21.15107/rcub_cer_7114
ER  - 

@conference{
author = "Pergal, Marija and Rašljić Rafajilović, Milena and Vićentić, Teodora and Pašti, Igor and Bajuk-Bogdanović, Danica and Radulović, Katarina and Spasenović, Marko",
year = "2023",
abstract = "Laser-induced graphene (LIG) has emerged as one of the most promising materials for
flexible functional devices. One-step fabrication of LIG offers advantages such as low cost,
patterning of desired geometries, and high sensitivity. However, previous attempts to obtain
LIG on elastomeric substrates have been unsuccessful, limiting its potential for use in
stretchable electronics. In this study, we propose using a substrate composed of
polydimethylsiloxane (PDMS) and poly(ethylene oxide) (PEO) with a low molecular weight
as a platform for manufacturing LIG. A series of PDMS/PEO materials with varying
concentrations of PEO (1, 5, 10, 20, 30, 40 and 50 wt.%) were prepared using a cast-based
approach, starting from divinyl-terminated-PDMS and poly(methyl-hydrogensiloxane). The
prepared PDMS/PEO/graphene composites were characterized using Raman spectroscopy,
Fourier transform infrared spectroscopy (FTIR), and scanning electron microscopy (SEM)
analysis. FTIR analysis confirmed the structure of the prepared PDMS/PEO and
PDMS/PEO/graphene materials. The results demonstrated that the prepared PDMS/PEO
composites exhibited a higher degree of graphenization compared to pure PDMS networks.
SEM analysis revealed the formation of a porous graphene structure. Based on these findings,
the PDMS/PEO/graphene composites show promise for further investigation as electronic
device applications.",
publisher = "Belgrade : Serbian Ceramic Society",
journal = "Program and book of abstracts - Serbian Ceramics Society Conference - Advanced Ceramics and Application XI, New Frontiers in Multifunctional Material Science and Processing,18-20 th September 2023. Belgrade, Serbia",
title = "Laser-induced graphene on PEO/PDMS composites",
pages = "59-59",
url = "https://hdl.handle.net/21.15107/rcub_cer_7114"
}

Pergal, M., Rašljić Rafajilović, M., Vićentić, T., Pašti, I., Bajuk-Bogdanović, D., Radulović, K.,& Spasenović, M.. (2023). Laser-induced graphene on PEO/PDMS composites. in Program and book of abstracts - Serbian Ceramics Society Conference - Advanced Ceramics and Application XI, New Frontiers in Multifunctional Material Science and Processing,18-20 th September 2023. Belgrade, Serbia
Belgrade : Serbian Ceramic Society., 59-59.
https://hdl.handle.net/21.15107/rcub_cer_7114

Pergal M, Rašljić Rafajilović M, Vićentić T, Pašti I, Bajuk-Bogdanović D, Radulović K, Spasenović M. Laser-induced graphene on PEO/PDMS composites. in Program and book of abstracts - Serbian Ceramics Society Conference - Advanced Ceramics and Application XI, New Frontiers in Multifunctional Material Science and Processing,18-20 th September 2023. Belgrade, Serbia. 2023;:59-59.
https://hdl.handle.net/21.15107/rcub_cer_7114 .

Pergal, Marija, Rašljić Rafajilović, Milena, Vićentić, Teodora, Pašti, Igor, Bajuk-Bogdanović, Danica, Radulović, Katarina, Spasenović, Marko, "Laser-induced graphene on PEO/PDMS composites" in Program and book of abstracts - Serbian Ceramics Society Conference - Advanced Ceramics and Application XI, New Frontiers in Multifunctional Material Science and Processing,18-20 th September 2023. Belgrade, Serbia (2023):59-59,
https://hdl.handle.net/21.15107/rcub_cer_7114 .

TY  - CONF
AU  - Rašljić Rafajilović, Milena
AU  - Vićentić, Teodora
AU  - Spasenović, Marko
AU  - Bajuk-Bogdanović, Danica
AU  - Pašti, Igor
AU  - Radulović, Katarina
AU  - Pergal, Marija
PY  - 2023
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/7115
AB  - The objective of this study was to develop optimal laser parameters (resolution, power, and velocity) for the formation of graphene on poly(dimethylsiloxane) (PDMS)-based materials using laser-induced graphene (LIG). A series of novel PDMS/poly(ethylene glycol) (PEG) materials with varying concentrations of PEG (30, 40, and 50 wt.%) was prepared through a blending approach. For comparison, pure PDMS was prepared using a casting method. To the best of our knowledge, the synthesis of PDMS/PEG materials and the direct laser graphenization (LIG) of PDMS/PEG materials have not been reported in the literature. Once the optimal laser parameters were established, the prepared PDMS/PEG/graphene composites were characterized using Fourier transform infrared spectroscopy (FTIR), Raman spectroscopy, and scanning electron microscopy (SEM). The results demonstrated that the addition of PEG led to an enhanced degree of graphenization compared to the pure PDMS sample, which did not induce graphene formation. Among the materials tested, the PDMS/PEG/graphene composite with 30 wt.% PEG in the PDMS matrix exhibited the optimal degree of graphenization. SEM analysis of the LIG on PDMS/PEG material revealed a porous network structure. With their improved properties, the developed PDMS/PEG/graphene composites hold promise as materials suitable for the production of flexible electronic devices.
PB  - Академија наука и умјетности Републике Српске / Academy of Sciences and Arts of the Republic of Srpska
C3  - XVI Mеђународни научни скуп Савремени материјали 2023, Програм рада и Књига апстраката, 7 - 8. септембар 2023. године, Бања Лука /XVI International Scientific Conference Contemporary Materials 2023, Programme and the Book Of Abstracts, September 7 - 8, 2023, Banja Luka
T1  - Optimal laser parameters for laser induction of graphene on poly(dimethylsiloxane)-based materials
SP  - 40
EP  - 40
UR  - https://hdl.handle.net/21.15107/rcub_cer_7115
ER  - 

@conference{
author = "Rašljić Rafajilović, Milena and Vićentić, Teodora and Spasenović, Marko and Bajuk-Bogdanović, Danica and Pašti, Igor and Radulović, Katarina and Pergal, Marija",
year = "2023",
abstract = "The objective of this study was to develop optimal laser parameters (resolution, power, and velocity) for the formation of graphene on poly(dimethylsiloxane) (PDMS)-based materials using laser-induced graphene (LIG). A series of novel PDMS/poly(ethylene glycol) (PEG) materials with varying concentrations of PEG (30, 40, and 50 wt.%) was prepared through a blending approach. For comparison, pure PDMS was prepared using a casting method. To the best of our knowledge, the synthesis of PDMS/PEG materials and the direct laser graphenization (LIG) of PDMS/PEG materials have not been reported in the literature. Once the optimal laser parameters were established, the prepared PDMS/PEG/graphene composites were characterized using Fourier transform infrared spectroscopy (FTIR), Raman spectroscopy, and scanning electron microscopy (SEM). The results demonstrated that the addition of PEG led to an enhanced degree of graphenization compared to the pure PDMS sample, which did not induce graphene formation. Among the materials tested, the PDMS/PEG/graphene composite with 30 wt.% PEG in the PDMS matrix exhibited the optimal degree of graphenization. SEM analysis of the LIG on PDMS/PEG material revealed a porous network structure. With their improved properties, the developed PDMS/PEG/graphene composites hold promise as materials suitable for the production of flexible electronic devices.",
publisher = "Академија наука и умјетности Републике Српске / Academy of Sciences and Arts of the Republic of Srpska",
journal = "XVI Mеђународни научни скуп Савремени материјали 2023, Програм рада и Књига апстраката, 7 - 8. септембар 2023. године, Бања Лука /XVI International Scientific Conference Contemporary Materials 2023, Programme and the Book Of Abstracts, September 7 - 8, 2023, Banja Luka",
title = "Optimal laser parameters for laser induction of graphene on poly(dimethylsiloxane)-based materials",
pages = "40-40",
url = "https://hdl.handle.net/21.15107/rcub_cer_7115"
}

Rašljić Rafajilović, M., Vićentić, T., Spasenović, M., Bajuk-Bogdanović, D., Pašti, I., Radulović, K.,& Pergal, M.. (2023). Optimal laser parameters for laser induction of graphene on poly(dimethylsiloxane)-based materials. in XVI Mеђународни научни скуп Савремени материјали 2023, Програм рада и Књига апстраката, 7 - 8. септембар 2023. године, Бања Лука /XVI International Scientific Conference Contemporary Materials 2023, Programme and the Book Of Abstracts, September 7 - 8, 2023, Banja Luka
Академија наука и умјетности Републике Српске / Academy of Sciences and Arts of the Republic of Srpska., 40-40.
https://hdl.handle.net/21.15107/rcub_cer_7115

Rašljić Rafajilović M, Vićentić T, Spasenović M, Bajuk-Bogdanović D, Pašti I, Radulović K, Pergal M. Optimal laser parameters for laser induction of graphene on poly(dimethylsiloxane)-based materials. in XVI Mеђународни научни скуп Савремени материјали 2023, Програм рада и Књига апстраката, 7 - 8. септембар 2023. године, Бања Лука /XVI International Scientific Conference Contemporary Materials 2023, Programme and the Book Of Abstracts, September 7 - 8, 2023, Banja Luka. 2023;:40-40.
https://hdl.handle.net/21.15107/rcub_cer_7115 .

Rašljić Rafajilović, Milena, Vićentić, Teodora, Spasenović, Marko, Bajuk-Bogdanović, Danica, Pašti, Igor, Radulović, Katarina, Pergal, Marija, "Optimal laser parameters for laser induction of graphene on poly(dimethylsiloxane)-based materials" in XVI Mеђународни научни скуп Савремени материјали 2023, Програм рада и Књига апстраката, 7 - 8. септембар 2023. године, Бања Лука /XVI International Scientific Conference Contemporary Materials 2023, Programme and the Book Of Abstracts, September 7 - 8, 2023, Banja Luka (2023):40-40,
https://hdl.handle.net/21.15107/rcub_cer_7115 .

TY  - JOUR
AU  - Savić, Marjetka
AU  - Janošević Ležaić, Aleksandra
AU  - Gavrilov, Nemanja
AU  - Pašti, Igor
AU  - Nedić Vasiljević, Bojana
AU  - Krstić, Jugoslav
AU  - Ćirić-Marjanović, Gordana
PY  - 2023
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/5653
AB  - Composites of carbons with metal oxides and metal sulfides have attracted a lot of interest
as materials for energy conversion and storage applications. Herein, we report on novel N,O-doped
carbon/ZnO/ZnS and N,O-doped carbon/ZnO composites (generally named C-(MOF-5/PANI)),
synthesized by the carbonization of metal–organic framework MOF-5/polyaniline (PANI) composites.
The produced C-(MOF-5/PANI)s are comprehensively characterized in terms of composition,
molecular and crystalline structure, morphology, electrical conductivity, surface area, and electrochemical
behavior. The composition and properties of C-(MOF-5/PANI) composites are dictated by
the composition of MOF-5/PANI precursors and the form of PANI (conducting emeraldine salt (ES)
or nonconducting emeraldine base). The ZnS phase is formed only with the PANI-ES form due to
S-containing counter-ions. XRPD revealed that ZnO and ZnS existed as pure wurtzite crystalline
phases. PANI and MOF-5 acted synergistically to produce C-(MOF-5/PANI)s with high SBET (up to
609 m2 g−1), electrical conductivity (up to 0.24 S cm−1), and specific capacitance, Cspec, (up to 238.2 F
g−1 at 10 mV s−1). Values of Cspec commensurated with N content in C-(MOF-5/PANI) composites (1–
10 wt.%) and overcame Cspec of carbonized individual components PANI and MOF-5. By acid etching
treatment of C-(MOF-5/PANI), SBET and Cspec increased to 1148 m2 g−1 and 341 F g−1, respectively.
The developed composites represent promising electrode materials for supercapacitors.
PB  - Switzerland : Multidisciplinary Digital Publishing Institute (MDPI)
T2  - Materials
T1  - Carbonization of MOF-5/Polyaniline Composites to N,O-Doped Carbon/ZnO/ZnS and N,O-Doped Carbon/ZnO Composites with High Specific Capacitance, Specific Surface Area and Electrical Conductivity
VL  - 16
IS  - 3
SP  - 1018
DO  - 10.3390/ma16031018
ER  - 

@article{
author = "Savić, Marjetka and Janošević Ležaić, Aleksandra and Gavrilov, Nemanja and Pašti, Igor and Nedić Vasiljević, Bojana and Krstić, Jugoslav and Ćirić-Marjanović, Gordana",
year = "2023",
abstract = "Composites of carbons with metal oxides and metal sulfides have attracted a lot of interest
as materials for energy conversion and storage applications. Herein, we report on novel N,O-doped
carbon/ZnO/ZnS and N,O-doped carbon/ZnO composites (generally named C-(MOF-5/PANI)),
synthesized by the carbonization of metal–organic framework MOF-5/polyaniline (PANI) composites.
The produced C-(MOF-5/PANI)s are comprehensively characterized in terms of composition,
molecular and crystalline structure, morphology, electrical conductivity, surface area, and electrochemical
behavior. The composition and properties of C-(MOF-5/PANI) composites are dictated by
the composition of MOF-5/PANI precursors and the form of PANI (conducting emeraldine salt (ES)
or nonconducting emeraldine base). The ZnS phase is formed only with the PANI-ES form due to
S-containing counter-ions. XRPD revealed that ZnO and ZnS existed as pure wurtzite crystalline
phases. PANI and MOF-5 acted synergistically to produce C-(MOF-5/PANI)s with high SBET (up to
609 m2 g−1), electrical conductivity (up to 0.24 S cm−1), and specific capacitance, Cspec, (up to 238.2 F
g−1 at 10 mV s−1). Values of Cspec commensurated with N content in C-(MOF-5/PANI) composites (1–
10 wt.%) and overcame Cspec of carbonized individual components PANI and MOF-5. By acid etching
treatment of C-(MOF-5/PANI), SBET and Cspec increased to 1148 m2 g−1 and 341 F g−1, respectively.
The developed composites represent promising electrode materials for supercapacitors.",
publisher = "Switzerland : Multidisciplinary Digital Publishing Institute (MDPI)",
journal = "Materials",
title = "Carbonization of MOF-5/Polyaniline Composites to N,O-Doped Carbon/ZnO/ZnS and N,O-Doped Carbon/ZnO Composites with High Specific Capacitance, Specific Surface Area and Electrical Conductivity",
volume = "16",
number = "3",
pages = "1018",
doi = "10.3390/ma16031018"
}

Savić, M., Janošević Ležaić, A., Gavrilov, N., Pašti, I., Nedić Vasiljević, B., Krstić, J.,& Ćirić-Marjanović, G.. (2023). Carbonization of MOF-5/Polyaniline Composites to N,O-Doped Carbon/ZnO/ZnS and N,O-Doped Carbon/ZnO Composites with High Specific Capacitance, Specific Surface Area and Electrical Conductivity. in Materials
Switzerland : Multidisciplinary Digital Publishing Institute (MDPI)., 16(3), 1018.
https://doi.org/10.3390/ma16031018

Savić M, Janošević Ležaić A, Gavrilov N, Pašti I, Nedić Vasiljević B, Krstić J, Ćirić-Marjanović G. Carbonization of MOF-5/Polyaniline Composites to N,O-Doped Carbon/ZnO/ZnS and N,O-Doped Carbon/ZnO Composites with High Specific Capacitance, Specific Surface Area and Electrical Conductivity. in Materials. 2023;16(3):1018.
doi:10.3390/ma16031018 .

Savić, Marjetka, Janošević Ležaić, Aleksandra, Gavrilov, Nemanja, Pašti, Igor, Nedić Vasiljević, Bojana, Krstić, Jugoslav, Ćirić-Marjanović, Gordana, "Carbonization of MOF-5/Polyaniline Composites to N,O-Doped Carbon/ZnO/ZnS and N,O-Doped Carbon/ZnO Composites with High Specific Capacitance, Specific Surface Area and Electrical Conductivity" in Materials, 16, no. 3 (2023):1018,
https://doi.org/10.3390/ma16031018 . .

TY  - CONF
AU  - Rašljić Rafajilović, Milena
AU  - Vasiljević-Radović, Dana
AU  - Vićentić, Teodora
AU  - Spasenović, Marko
AU  - Bošković, Marko
AU  - Pašti, Igor
AU  - Pergal, Marija
PY  - 2022
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/5723
AB  - Laser-induced graphene (LIG) is one of the most promising graphene-based materials for the
fabrication of flexible electronic devices. However, despite huge efforts to develop LIG on new
substrates there is a lack of stretchable polymers convenient for laser graphenization.
Poly(dimethylsiloxane) is elastomer suitable for flexible electronic fabrication due to excellent
flexibility, optical transparency, hydrophobicity, UV-resistance and good thermal and oxidative
stability. Unfortunately, PDMS cannot be easily graphenized by direct laser writing because of the
low amount of carbon linked to the siloxane chains, mainly consisting of methyl groups. In this
study, a series of PDMS/Triton materials with different concentrations of Triton (1-30 wt.%) was
prepared by casted-based approach starting from divinyl-terminated-PDMS and poly(methylhydrogensiloxane).
Furthermore, direct laser graphenization of PDMS/Triton materials is proposed
for the first time. Different laser parameters and multiple writing steps have been examined in order
to induce a graphene-like structure on PDMS/Triton and to increase as much as possible its
conductivity. The prepared PDMS/Triton/graphene composites were characterized by Raman
spectroscopy, scanning electron microscopy (SEM) and sheet resistance measurements. The results
revealed that by adding Triton it is possible to enhance the graphenization degree. The obtained
PDMS/Triton/graphene composites are suitable candidates for flexible microsupercapacitor
fabrication.
PB  - Banja Luka : University in Banjaluka, Faculty of  Technology
C3  - Book of Abstracts - XIV Conference of  Chemists, Technologists and Environmentalists of Republic of Srpska, October 21-22, 2022, Banja Luka
T1  - Characterization of poly(dimethylsiloxane)/laser-induced graphene composites
SP  - 196
UR  - https://hdl.handle.net/21.15107/rcub_cer_5723
ER  - 

@conference{
author = "Rašljić Rafajilović, Milena and Vasiljević-Radović, Dana and Vićentić, Teodora and Spasenović, Marko and Bošković, Marko and Pašti, Igor and Pergal, Marija",
year = "2022",
abstract = "Laser-induced graphene (LIG) is one of the most promising graphene-based materials for the
fabrication of flexible electronic devices. However, despite huge efforts to develop LIG on new
substrates there is a lack of stretchable polymers convenient for laser graphenization.
Poly(dimethylsiloxane) is elastomer suitable for flexible electronic fabrication due to excellent
flexibility, optical transparency, hydrophobicity, UV-resistance and good thermal and oxidative
stability. Unfortunately, PDMS cannot be easily graphenized by direct laser writing because of the
low amount of carbon linked to the siloxane chains, mainly consisting of methyl groups. In this
study, a series of PDMS/Triton materials with different concentrations of Triton (1-30 wt.%) was
prepared by casted-based approach starting from divinyl-terminated-PDMS and poly(methylhydrogensiloxane).
Furthermore, direct laser graphenization of PDMS/Triton materials is proposed
for the first time. Different laser parameters and multiple writing steps have been examined in order
to induce a graphene-like structure on PDMS/Triton and to increase as much as possible its
conductivity. The prepared PDMS/Triton/graphene composites were characterized by Raman
spectroscopy, scanning electron microscopy (SEM) and sheet resistance measurements. The results
revealed that by adding Triton it is possible to enhance the graphenization degree. The obtained
PDMS/Triton/graphene composites are suitable candidates for flexible microsupercapacitor
fabrication.",
publisher = "Banja Luka : University in Banjaluka, Faculty of  Technology",
journal = "Book of Abstracts - XIV Conference of  Chemists, Technologists and Environmentalists of Republic of Srpska, October 21-22, 2022, Banja Luka",
title = "Characterization of poly(dimethylsiloxane)/laser-induced graphene composites",
pages = "196",
url = "https://hdl.handle.net/21.15107/rcub_cer_5723"
}

Rašljić Rafajilović, M., Vasiljević-Radović, D., Vićentić, T., Spasenović, M., Bošković, M., Pašti, I.,& Pergal, M.. (2022). Characterization of poly(dimethylsiloxane)/laser-induced graphene composites. in Book of Abstracts - XIV Conference of  Chemists, Technologists and Environmentalists of Republic of Srpska, October 21-22, 2022, Banja Luka
Banja Luka : University in Banjaluka, Faculty of  Technology., 196.
https://hdl.handle.net/21.15107/rcub_cer_5723

Rašljić Rafajilović M, Vasiljević-Radović D, Vićentić T, Spasenović M, Bošković M, Pašti I, Pergal M. Characterization of poly(dimethylsiloxane)/laser-induced graphene composites. in Book of Abstracts - XIV Conference of  Chemists, Technologists and Environmentalists of Republic of Srpska, October 21-22, 2022, Banja Luka. 2022;:196.
https://hdl.handle.net/21.15107/rcub_cer_5723 .

Rašljić Rafajilović, Milena, Vasiljević-Radović, Dana, Vićentić, Teodora, Spasenović, Marko, Bošković, Marko, Pašti, Igor, Pergal, Marija, "Characterization of poly(dimethylsiloxane)/laser-induced graphene composites" in Book of Abstracts - XIV Conference of  Chemists, Technologists and Environmentalists of Republic of Srpska, October 21-22, 2022, Banja Luka (2022):196,
https://hdl.handle.net/21.15107/rcub_cer_5723 .

TY  - JOUR
AU  - Vićentić, Teodora
AU  - Rašljić Rafajilović, Milena
AU  - Ilić, Stefan
AU  - Koteska, Bojana
AU  - Madevska Bogdanova, Ana
AU  - Pašti, Igor
AU  - Lehocki, Fedor
AU  - Spasenović, Marko
PY  - 2022
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/5559
AB  - The HeartPy Python toolkit for analysis of noisy signals from heart rate measurements is an excellent tool to use in conjunction with novel wearable sensors. Nevertheless, most of the work to date has focused on applying the toolkit to data measured with commercially available sensors. We demonstrate the application of the HeartPy functions to data obtained with a novel graphene-based heartbeat sensor. We produce the sensor by laser-inducing graphene on a flexible polyimide substrate. Both graphene on the polyimide substrate and graphene transferred onto a PDMS substrate show piezoresistive behavior that can be utilized to measure human heartbeat by registering median cubital vein motion during blood pumping. We process electrical resistance data from the graphene sensor using HeartPy and demonstrate extraction of several heartbeat parameters, in agreement with measurements taken with independent reference sensors. We compare the quality of the heartbeat signal from graphene on different substrates, demonstrating that in all cases the device yields results consistent with reference sensors. Our work is a first demonstration of successful application of HeartPy to analysis of data from a sensor in development.
PB  - MDPI AG
T2  - Sensors
T1  - Laser-Induced Graphene for Heartbeat Monitoring with HeartPy Analysis
VL  - 22
IS  - 17
SP  - 6326
DO  - 10.3390/s22176326
ER  - 

@article{
author = "Vićentić, Teodora and Rašljić Rafajilović, Milena and Ilić, Stefan and Koteska, Bojana and Madevska Bogdanova, Ana and Pašti, Igor and Lehocki, Fedor and Spasenović, Marko",
year = "2022",
abstract = "The HeartPy Python toolkit for analysis of noisy signals from heart rate measurements is an excellent tool to use in conjunction with novel wearable sensors. Nevertheless, most of the work to date has focused on applying the toolkit to data measured with commercially available sensors. We demonstrate the application of the HeartPy functions to data obtained with a novel graphene-based heartbeat sensor. We produce the sensor by laser-inducing graphene on a flexible polyimide substrate. Both graphene on the polyimide substrate and graphene transferred onto a PDMS substrate show piezoresistive behavior that can be utilized to measure human heartbeat by registering median cubital vein motion during blood pumping. We process electrical resistance data from the graphene sensor using HeartPy and demonstrate extraction of several heartbeat parameters, in agreement with measurements taken with independent reference sensors. We compare the quality of the heartbeat signal from graphene on different substrates, demonstrating that in all cases the device yields results consistent with reference sensors. Our work is a first demonstration of successful application of HeartPy to analysis of data from a sensor in development.",
publisher = "MDPI AG",
journal = "Sensors",
title = "Laser-Induced Graphene for Heartbeat Monitoring with HeartPy Analysis",
volume = "22",
number = "17",
pages = "6326",
doi = "10.3390/s22176326"
}

Vićentić, T., Rašljić Rafajilović, M., Ilić, S., Koteska, B., Madevska Bogdanova, A., Pašti, I., Lehocki, F.,& Spasenović, M.. (2022). Laser-Induced Graphene for Heartbeat Monitoring with HeartPy Analysis. in Sensors
MDPI AG., 22(17), 6326.
https://doi.org/10.3390/s22176326

Vićentić T, Rašljić Rafajilović M, Ilić S, Koteska B, Madevska Bogdanova A, Pašti I, Lehocki F, Spasenović M. Laser-Induced Graphene for Heartbeat Monitoring with HeartPy Analysis. in Sensors. 2022;22(17):6326.
doi:10.3390/s22176326 .

Vićentić, Teodora, Rašljić Rafajilović, Milena, Ilić, Stefan, Koteska, Bojana, Madevska Bogdanova, Ana, Pašti, Igor, Lehocki, Fedor, Spasenović, Marko, "Laser-Induced Graphene for Heartbeat Monitoring with HeartPy Analysis" in Sensors, 22, no. 17 (2022):6326,
https://doi.org/10.3390/s22176326 . .

TY  - CONF
AU  - Vićentić, Teodora
AU  - Rašljić Rafajilović, Milena
AU  - Ilić, Stefan
AU  - Koteska, Bojana
AU  - Madevska Bogdanova, Ana
AU  - Pašti, Igor
AU  - Lehocki, Fedor
AU  - Spasenović, Marko
PY  - 2022
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/5722
AB  - Wearable sensors are reaching maturity, at the
same time as technologies for communicating physiological data
and those for analyzing massive amounts of data. The
combination of the three technologies invites for applications in
mass screening of personal health through smart algorithm
deployment on data from wearable patches. We propose and
present an architecture for a wearable patch to be used in mass
casualty emergency situations, or for hospital bedside
monitoring. The proposed patch will contain multiple sensors of
physiological parameters. We propose to create respiration and
heartbeat sensors made of laser induced graphene. We show
that graphene on flexible substrates can be utilized in
conjunction with the Python heart rate analysis toolkit -
HeartPy to reliably acquire physiological data from human
subjects
PB  - The Institute of Doctors Engineers and Scientists (IDES)
PB  - The Association of Computer Electrical Electronics and Communication (ACEECom)
C3  - 19th International Conference on Informatics and Information Technologies, CIIT 2022
T1  - Wearable Patch for Mass Casualty Screening with Graphene Sensors
SP  - 99
EP  - 102
UR  - https://hdl.handle.net/21.15107/rcub_cer_5722
ER  - 

@conference{
author = "Vićentić, Teodora and Rašljić Rafajilović, Milena and Ilić, Stefan and Koteska, Bojana and Madevska Bogdanova, Ana and Pašti, Igor and Lehocki, Fedor and Spasenović, Marko",
year = "2022",
abstract = "Wearable sensors are reaching maturity, at the
same time as technologies for communicating physiological data
and those for analyzing massive amounts of data. The
combination of the three technologies invites for applications in
mass screening of personal health through smart algorithm
deployment on data from wearable patches. We propose and
present an architecture for a wearable patch to be used in mass
casualty emergency situations, or for hospital bedside
monitoring. The proposed patch will contain multiple sensors of
physiological parameters. We propose to create respiration and
heartbeat sensors made of laser induced graphene. We show
that graphene on flexible substrates can be utilized in
conjunction with the Python heart rate analysis toolkit -
HeartPy to reliably acquire physiological data from human
subjects",
publisher = "The Institute of Doctors Engineers and Scientists (IDES), The Association of Computer Electrical Electronics and Communication (ACEECom)",
journal = "19th International Conference on Informatics and Information Technologies, CIIT 2022",
title = "Wearable Patch for Mass Casualty Screening with Graphene Sensors",
pages = "99-102",
url = "https://hdl.handle.net/21.15107/rcub_cer_5722"
}

Vićentić, T., Rašljić Rafajilović, M., Ilić, S., Koteska, B., Madevska Bogdanova, A., Pašti, I., Lehocki, F.,& Spasenović, M.. (2022). Wearable Patch for Mass Casualty Screening with Graphene Sensors. in 19th International Conference on Informatics and Information Technologies, CIIT 2022
The Institute of Doctors Engineers and Scientists (IDES)., 99-102.
https://hdl.handle.net/21.15107/rcub_cer_5722

Vićentić T, Rašljić Rafajilović M, Ilić S, Koteska B, Madevska Bogdanova A, Pašti I, Lehocki F, Spasenović M. Wearable Patch for Mass Casualty Screening with Graphene Sensors. in 19th International Conference on Informatics and Information Technologies, CIIT 2022. 2022;:99-102.
https://hdl.handle.net/21.15107/rcub_cer_5722 .

Vićentić, Teodora, Rašljić Rafajilović, Milena, Ilić, Stefan, Koteska, Bojana, Madevska Bogdanova, Ana, Pašti, Igor, Lehocki, Fedor, Spasenović, Marko, "Wearable Patch for Mass Casualty Screening with Graphene Sensors" in 19th International Conference on Informatics and Information Technologies, CIIT 2022 (2022):99-102,
https://hdl.handle.net/21.15107/rcub_cer_5722 .

TY  - JOUR
AU  - Bondžić, Aleksandra
AU  - Lazarević Pašti, Tamara
AU  - Pasti, Igor
AU  - Bondžić, Bojan
AU  - Momčilović, Miloš D.
AU  - Loosen, Alexandra
AU  - Parac-Vogt Tatjana
PY  - 2022
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/5430
AB  - Organophosphate-based pesticides have remarkably contributed to the agriculture industry, but their toxicity has a large negative impact on the environment as well as on the health of humans and other living organisms. Most of the methods developed to remedy the organophosphate pesticide toxicity are very time-consuming and are based on their adsorption onto different materials and/or their degradation to nontoxic species. In this study, detoxification of three structurally different organophosphate pesticides was investigated using an NU-1000 metal-organic framework. We showed that NU-1000 is an excellent agent for fast (average time ≤ 3 min) and effective removal of organophosphate pesticides with an aromatic heterocyclic moiety. In particular, superior detoxification of chlorpyrifos solution after NU-1000 treatment was achieved after only 1 min. The combination of experimental and computational methods revealed that the synergic effects of sorption and hydrolysis are responsible for the superior removal of CHP by NU-1000. The sorption process occurs on the Zr node (chemisorption) and pyrene linkers (physisorption) following pseudo-first-order kinetics during the first minute, and a pseudo-second-order model fits the entire time range. The multilayer adsorption of chlorpyrifos or its hydrolyzed product, 3,5,6-trichloro-2-pyridinol, takes place on a pyrene linker, whereas the aliphatic part of the molecule remains chemisorbed on the Zr node. Such unique synergy between induced sorption and hydrolysis of chlorpyrifos by NU-1000 results in its fast and effective removal with rapid detoxification in non-buffered solutions.
PB  - USA : American Chemical Society
T2  - ACS Applied Nano Materials
T1  - Synergistic Effect of Sorption and Hydrolysis by NU-1000 Nanostructures for Removal and Detoxification of Chlorpyrifos
VL  - 5
IS  - 3
SP  - 3312
EP  - 3324
DO  - 10.1021/acsanm.1c03863
ER  - 

@article{
author = "Bondžić, Aleksandra and Lazarević Pašti, Tamara and Pasti, Igor and Bondžić, Bojan and Momčilović, Miloš D. and Loosen, Alexandra and Parac-Vogt Tatjana",
year = "2022",
abstract = "Organophosphate-based pesticides have remarkably contributed to the agriculture industry, but their toxicity has a large negative impact on the environment as well as on the health of humans and other living organisms. Most of the methods developed to remedy the organophosphate pesticide toxicity are very time-consuming and are based on their adsorption onto different materials and/or their degradation to nontoxic species. In this study, detoxification of three structurally different organophosphate pesticides was investigated using an NU-1000 metal-organic framework. We showed that NU-1000 is an excellent agent for fast (average time ≤ 3 min) and effective removal of organophosphate pesticides with an aromatic heterocyclic moiety. In particular, superior detoxification of chlorpyrifos solution after NU-1000 treatment was achieved after only 1 min. The combination of experimental and computational methods revealed that the synergic effects of sorption and hydrolysis are responsible for the superior removal of CHP by NU-1000. The sorption process occurs on the Zr node (chemisorption) and pyrene linkers (physisorption) following pseudo-first-order kinetics during the first minute, and a pseudo-second-order model fits the entire time range. The multilayer adsorption of chlorpyrifos or its hydrolyzed product, 3,5,6-trichloro-2-pyridinol, takes place on a pyrene linker, whereas the aliphatic part of the molecule remains chemisorbed on the Zr node. Such unique synergy between induced sorption and hydrolysis of chlorpyrifos by NU-1000 results in its fast and effective removal with rapid detoxification in non-buffered solutions.",
publisher = "USA : American Chemical Society",
journal = "ACS Applied Nano Materials",
title = "Synergistic Effect of Sorption and Hydrolysis by NU-1000 Nanostructures for Removal and Detoxification of Chlorpyrifos",
volume = "5",
number = "3",
pages = "3312-3324",
doi = "10.1021/acsanm.1c03863"
}

Bondžić, A., Lazarević Pašti, T., Pasti, I., Bondžić, B., Momčilović, M. D., Loosen, A.,& Parac-Vogt Tatjana. (2022). Synergistic Effect of Sorption and Hydrolysis by NU-1000 Nanostructures for Removal and Detoxification of Chlorpyrifos. in ACS Applied Nano Materials
USA : American Chemical Society., 5(3), 3312-3324.
https://doi.org/10.1021/acsanm.1c03863

Bondžić A, Lazarević Pašti T, Pasti I, Bondžić B, Momčilović MD, Loosen A, Parac-Vogt Tatjana. Synergistic Effect of Sorption and Hydrolysis by NU-1000 Nanostructures for Removal and Detoxification of Chlorpyrifos. in ACS Applied Nano Materials. 2022;5(3):3312-3324.
doi:10.1021/acsanm.1c03863 .

Bondžić, Aleksandra, Lazarević Pašti, Tamara, Pasti, Igor, Bondžić, Bojan, Momčilović, Miloš D., Loosen, Alexandra, Parac-Vogt Tatjana, "Synergistic Effect of Sorption and Hydrolysis by NU-1000 Nanostructures for Removal and Detoxification of Chlorpyrifos" in ACS Applied Nano Materials, 5, no. 3 (2022):3312-3324,
https://doi.org/10.1021/acsanm.1c03863 . .

TY  - JOUR
AU  - Ciric-Marjanovic, Gordana
AU  - Mentus, Slavko
AU  - Pasti, Igor
AU  - Gavrilov, Nemanja
AU  - Krstić, Jugoslav
AU  - Travas-Sejdic, Jadranka
AU  - Strover, Lisa T.
AU  - Kopecka, Jitka
AU  - Moravkova, Zuzana
AU  - Trchova, Miroslava
AU  - Stejskal, Jaroslav
PY  - 2014
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/1594
AB  - Polypyrrole nanotubes (PPy-NTs) were prepared by the oxidation of pyrrole with iron(III) chloride in the presence of a structure-guiding agent, methyl orange. Upon carbonization of the salt form of PPy-NTs, the conducting nitrogen-containing nanotubular carbonaceous material (C-PPy-NT) was obtained. The morphology, structure, and physicochemical properties of PPy-NTs in salt and base form as well as C-PPy-NTs were investigated by transmission electron microscopy, Fourier transform infrared and Raman spectroscopies, conductivity measurements, elemental microanalysis, inductively coupled plasma optical emission spectroscopy, X-ray photoelectron spectroscopy, and nitrogen physisorption. Results of the material characterization were linked to their electrochemical behavior. Specific capacitance of around 120 F g(-1) at low potential sweep rate of 5 mV s(-1) was observed for original PPy-NTs. However, when the potential sweep rate was increased to 100 mV s(-1), PPy-NT salt retained the value of specific capacitance, while the capacitance of PPy-NT base decreased by 70%. Upon carbonization of PPy-NT salt, the specific capacitance was doubled and capacitance fade measured in the interval 5-100 mV s(-1) was determined to be around 45%. It is proposed that the absolute value of specific capacitance is determined by specific surface area and surface functional groups, while the capacitance fade is determined by the conductivity of the electrode material. In this manner, a linear relationship between the percent of capacitance fade and the logarithm of the conductivity was revealed. C-PPy-NTs were also tested as an electrocatalyst for the oxygen reduction reaction (ORR) in alkaline media. High ORR activity was observed, characterized by the onset potential of -0.1 V versus saturated calomel electrode and the apparent number of electrons consumed per oxygen molecule higher than 3. Appreciable ORR activity can be linked with a high fraction of mesopores and the presence of surface functional groups, especially pyridinic and pyrrolic nitrogens, and also with a high degree of structural disorder.
PB  - American Chemical Society (ACS)
T2  - Journal of Physical Chemistry C
T1  - Synthesis, Characterization, and Electrochemistry of Nanotubular Polypyrrole and Polypyrrole-Derived Carbon Nanotubes
VL  - 118
IS  - 27
SP  - 14770
EP  - 14784
DO  - 10.1021/jp502862d
ER  - 

@article{
author = "Ciric-Marjanovic, Gordana and Mentus, Slavko and Pasti, Igor and Gavrilov, Nemanja and Krstić, Jugoslav and Travas-Sejdic, Jadranka and Strover, Lisa T. and Kopecka, Jitka and Moravkova, Zuzana and Trchova, Miroslava and Stejskal, Jaroslav",
year = "2014",
abstract = "Polypyrrole nanotubes (PPy-NTs) were prepared by the oxidation of pyrrole with iron(III) chloride in the presence of a structure-guiding agent, methyl orange. Upon carbonization of the salt form of PPy-NTs, the conducting nitrogen-containing nanotubular carbonaceous material (C-PPy-NT) was obtained. The morphology, structure, and physicochemical properties of PPy-NTs in salt and base form as well as C-PPy-NTs were investigated by transmission electron microscopy, Fourier transform infrared and Raman spectroscopies, conductivity measurements, elemental microanalysis, inductively coupled plasma optical emission spectroscopy, X-ray photoelectron spectroscopy, and nitrogen physisorption. Results of the material characterization were linked to their electrochemical behavior. Specific capacitance of around 120 F g(-1) at low potential sweep rate of 5 mV s(-1) was observed for original PPy-NTs. However, when the potential sweep rate was increased to 100 mV s(-1), PPy-NT salt retained the value of specific capacitance, while the capacitance of PPy-NT base decreased by 70%. Upon carbonization of PPy-NT salt, the specific capacitance was doubled and capacitance fade measured in the interval 5-100 mV s(-1) was determined to be around 45%. It is proposed that the absolute value of specific capacitance is determined by specific surface area and surface functional groups, while the capacitance fade is determined by the conductivity of the electrode material. In this manner, a linear relationship between the percent of capacitance fade and the logarithm of the conductivity was revealed. C-PPy-NTs were also tested as an electrocatalyst for the oxygen reduction reaction (ORR) in alkaline media. High ORR activity was observed, characterized by the onset potential of -0.1 V versus saturated calomel electrode and the apparent number of electrons consumed per oxygen molecule higher than 3. Appreciable ORR activity can be linked with a high fraction of mesopores and the presence of surface functional groups, especially pyridinic and pyrrolic nitrogens, and also with a high degree of structural disorder.",
publisher = "American Chemical Society (ACS)",
journal = "Journal of Physical Chemistry C",
title = "Synthesis, Characterization, and Electrochemistry of Nanotubular Polypyrrole and Polypyrrole-Derived Carbon Nanotubes",
volume = "118",
number = "27",
pages = "14770-14784",
doi = "10.1021/jp502862d"
}

Ciric-Marjanovic, G., Mentus, S., Pasti, I., Gavrilov, N., Krstić, J., Travas-Sejdic, J., Strover, L. T., Kopecka, J., Moravkova, Z., Trchova, M.,& Stejskal, J.. (2014). Synthesis, Characterization, and Electrochemistry of Nanotubular Polypyrrole and Polypyrrole-Derived Carbon Nanotubes. in Journal of Physical Chemistry C
American Chemical Society (ACS)., 118(27), 14770-14784.
https://doi.org/10.1021/jp502862d

Ciric-Marjanovic G, Mentus S, Pasti I, Gavrilov N, Krstić J, Travas-Sejdic J, Strover LT, Kopecka J, Moravkova Z, Trchova M, Stejskal J. Synthesis, Characterization, and Electrochemistry of Nanotubular Polypyrrole and Polypyrrole-Derived Carbon Nanotubes. in Journal of Physical Chemistry C. 2014;118(27):14770-14784.
doi:10.1021/jp502862d .

Ciric-Marjanovic, Gordana, Mentus, Slavko, Pasti, Igor, Gavrilov, Nemanja, Krstić, Jugoslav, Travas-Sejdic, Jadranka, Strover, Lisa T., Kopecka, Jitka, Moravkova, Zuzana, Trchova, Miroslava, Stejskal, Jaroslav, "Synthesis, Characterization, and Electrochemistry of Nanotubular Polypyrrole and Polypyrrole-Derived Carbon Nanotubes" in Journal of Physical Chemistry C, 118, no. 27 (2014):14770-14784,
https://doi.org/10.1021/jp502862d . .

TY  - JOUR
AU  - Vujković, Milica
AU  - Gavrilov, Nemanja
AU  - Pasti, Igor
AU  - Krstić, Jugoslav
AU  - Travas-Sejdic, Jadranka
AU  - Ciric-Marjanovic, Gordana
AU  - Mentus, Slavko
PY  - 2013
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/1162
AB  - Carbonized nanostructured polyaniline (C.PANI) was hydrothermally treated in 1 mol dm(-3) KOH at 200 degrees C. The treatment caused significant reduction of micropore volume but negligible changes in mesoporous domain, as evidenced by nitrogen adsorption measurements, as well as significant increase of surface N/C and O/C ratios, as evidenced by XPS method. In comparison to the C.PANI precursor, the new material, denoted as C.PANI.HAT200, delivered twice as high gravimetric capacitances, amounting to 363, 220 and 432 F g(-1), in 6 mol dm(-3) KOH, 2 mol dm(-3) KNO3 and 1 mol dm(-3) H2SO4, respectively, when measured potentiodynamically at a scan rate of 5 mV s(-1). Moreover, its exceptionally high electrocatalytic activity towards the oxygen reduction reaction (ORR), almost one order of magnitude higher than that of C.PANI was evidenced in alkaline media, approaching closely a four-electron pathway. The onset potential for ORR matched the one of platinum-based electrocatalyst. Significant improvements of both capacitive and electrocatalytic properties of C.PANI.HAT200 were discussed in correlation to the modification of surface functional groups. These findings affirm the low temperature hydrothermal post-synthetic modification of N-doped nanocarbons as a route of production of advanced multifunctional carbon materials with exceptional characteristics.
PB  - Oxford : Pergamon-Elsevier Science Ltd
T2  - Carbon
T1  - Superior capacitive and electrocatalytic properties of carbonized nanostructured polyaniline upon a low-temperature hydrothermal treatment
VL  - 64
SP  - 472
EP  - 486
DO  - 10.1016/j.carbon.2013.07.100
ER  - 

@article{
author = "Vujković, Milica and Gavrilov, Nemanja and Pasti, Igor and Krstić, Jugoslav and Travas-Sejdic, Jadranka and Ciric-Marjanovic, Gordana and Mentus, Slavko",
year = "2013",
abstract = "Carbonized nanostructured polyaniline (C.PANI) was hydrothermally treated in 1 mol dm(-3) KOH at 200 degrees C. The treatment caused significant reduction of micropore volume but negligible changes in mesoporous domain, as evidenced by nitrogen adsorption measurements, as well as significant increase of surface N/C and O/C ratios, as evidenced by XPS method. In comparison to the C.PANI precursor, the new material, denoted as C.PANI.HAT200, delivered twice as high gravimetric capacitances, amounting to 363, 220 and 432 F g(-1), in 6 mol dm(-3) KOH, 2 mol dm(-3) KNO3 and 1 mol dm(-3) H2SO4, respectively, when measured potentiodynamically at a scan rate of 5 mV s(-1). Moreover, its exceptionally high electrocatalytic activity towards the oxygen reduction reaction (ORR), almost one order of magnitude higher than that of C.PANI was evidenced in alkaline media, approaching closely a four-electron pathway. The onset potential for ORR matched the one of platinum-based electrocatalyst. Significant improvements of both capacitive and electrocatalytic properties of C.PANI.HAT200 were discussed in correlation to the modification of surface functional groups. These findings affirm the low temperature hydrothermal post-synthetic modification of N-doped nanocarbons as a route of production of advanced multifunctional carbon materials with exceptional characteristics.",
publisher = "Oxford : Pergamon-Elsevier Science Ltd",
journal = "Carbon",
title = "Superior capacitive and electrocatalytic properties of carbonized nanostructured polyaniline upon a low-temperature hydrothermal treatment",
volume = "64",
pages = "472-486",
doi = "10.1016/j.carbon.2013.07.100"
}

Vujković, M., Gavrilov, N., Pasti, I., Krstić, J., Travas-Sejdic, J., Ciric-Marjanovic, G.,& Mentus, S.. (2013). Superior capacitive and electrocatalytic properties of carbonized nanostructured polyaniline upon a low-temperature hydrothermal treatment. in Carbon
Oxford : Pergamon-Elsevier Science Ltd., 64, 472-486.
https://doi.org/10.1016/j.carbon.2013.07.100

Vujković M, Gavrilov N, Pasti I, Krstić J, Travas-Sejdic J, Ciric-Marjanovic G, Mentus S. Superior capacitive and electrocatalytic properties of carbonized nanostructured polyaniline upon a low-temperature hydrothermal treatment. in Carbon. 2013;64:472-486.
doi:10.1016/j.carbon.2013.07.100 .

Vujković, Milica, Gavrilov, Nemanja, Pasti, Igor, Krstić, Jugoslav, Travas-Sejdic, Jadranka, Ciric-Marjanovic, Gordana, Mentus, Slavko, "Superior capacitive and electrocatalytic properties of carbonized nanostructured polyaniline upon a low-temperature hydrothermal treatment" in Carbon, 64 (2013):472-486,
https://doi.org/10.1016/j.carbon.2013.07.100 . .

TY  - JOUR
AU  - Gavrilov, Nemanja
AU  - Pasti, Igor
AU  - Krstić, Jugoslav
AU  - Mitrić, Miodrag
AU  - Ciric-Marjanovic, Gordana
AU  - Mentus, Slavko
PY  - 2013
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/1261
AB  - Single phase tungsten carbide nanoparticles (WC-NPs), (mean particle diameter 5.4 nm), distributed over carbonized polyaniline (C-PANT) nanotubes/nanosheets were synthesized by a solid state reaction between WO3 and nitrogen-rich carbonized polyaniline at 1000 degrees C in a reducing atmosphere. The resulting composite was characterized by X-ray diffractometry, electron microscopy, thermogravimetry in oxidizing and reduction atmospheres and elemental analysis. We suggested that the synthesis of WC as a single phase was facilitated by reactive C atoms with dangling bonds, formed upon nitrogen removal.
PB  - Elsevier Sci Ltd, Oxford
T2  - Ceramics International
T1  - The synthesis of single phase WC nanoparticles/C composite by solid state reaction involving nitrogen-rich carbonized polyaniline
VL  - 39
IS  - 8
SP  - 8761
EP  - 8765
DO  - 10.1016/j.ceramint.2013.04.062
ER  - 

@article{
author = "Gavrilov, Nemanja and Pasti, Igor and Krstić, Jugoslav and Mitrić, Miodrag and Ciric-Marjanovic, Gordana and Mentus, Slavko",
year = "2013",
abstract = "Single phase tungsten carbide nanoparticles (WC-NPs), (mean particle diameter 5.4 nm), distributed over carbonized polyaniline (C-PANT) nanotubes/nanosheets were synthesized by a solid state reaction between WO3 and nitrogen-rich carbonized polyaniline at 1000 degrees C in a reducing atmosphere. The resulting composite was characterized by X-ray diffractometry, electron microscopy, thermogravimetry in oxidizing and reduction atmospheres and elemental analysis. We suggested that the synthesis of WC as a single phase was facilitated by reactive C atoms with dangling bonds, formed upon nitrogen removal.",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Ceramics International",
title = "The synthesis of single phase WC nanoparticles/C composite by solid state reaction involving nitrogen-rich carbonized polyaniline",
volume = "39",
number = "8",
pages = "8761-8765",
doi = "10.1016/j.ceramint.2013.04.062"
}

Gavrilov, N., Pasti, I., Krstić, J., Mitrić, M., Ciric-Marjanovic, G.,& Mentus, S.. (2013). The synthesis of single phase WC nanoparticles/C composite by solid state reaction involving nitrogen-rich carbonized polyaniline. in Ceramics International
Elsevier Sci Ltd, Oxford., 39(8), 8761-8765.
https://doi.org/10.1016/j.ceramint.2013.04.062

Gavrilov N, Pasti I, Krstić J, Mitrić M, Ciric-Marjanovic G, Mentus S. The synthesis of single phase WC nanoparticles/C composite by solid state reaction involving nitrogen-rich carbonized polyaniline. in Ceramics International. 2013;39(8):8761-8765.
doi:10.1016/j.ceramint.2013.04.062 .

Gavrilov, Nemanja, Pasti, Igor, Krstić, Jugoslav, Mitrić, Miodrag, Ciric-Marjanovic, Gordana, Mentus, Slavko, "The synthesis of single phase WC nanoparticles/C composite by solid state reaction involving nitrogen-rich carbonized polyaniline" in Ceramics International, 39, no. 8 (2013):8761-8765,
https://doi.org/10.1016/j.ceramint.2013.04.062 . .

TY  - JOUR
AU  - Janošević, Aleksandra
AU  - Pasti, Igor
AU  - Gavrilov, Nemanja
AU  - Mentus, Slavko
AU  - Krstić, Jugoslav
AU  - Mitrić, Miodrag
AU  - Travas-Sejdic, Jadranka
AU  - Ciric-Marjanovic, Gordana
PY  - 2012
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/1001
AB  - Microporous conducting nitrogen-containing nanostructured carbon with excellent catalytic activity for the electrochemical synthesis of hydrogen peroxide was synthesized by the carbonization of self-assembled polyaniline 3,5-dinitrosalicylate nanorods. Carbonization was carried out by means of gradual heating in a nitrogen atmosphere up to 800 degrees C. Carbonized polyaniline nanorods containing 9.8 wt.% of nitrogen had a conductivity of 0.35 S cm(-1). The electrical characteristics, morphology, textural parameters, elemental composition, molecular structure and crystallinity of novel carbonized nanostructured polyaniline were investigated by conductivity measurements, scanning and transmission electron microscopies, nitrogen adsorption-desorption measurements, elemental microanalysis, XPS, FTIR and Raman spectroscopies, and XRD, respectively. The electrocatalytic activity of carbonized polyaniline nanorods towards oxygen reduction in alkaline conditions has been studied by the voltammetry with the rotating disk electrode.
PB  - Elsevier
T2  - Microporous and Mesoporous Materials
T1  - Microporous conducting carbonized polyaniline nanorods: Synthesis, characterization and electrocatalytic properties
VL  - 152
SP  - 50
EP  - 57
DO  - 10.1016/j.micromeso.2011.12.002
ER  - 

@article{
author = "Janošević, Aleksandra and Pasti, Igor and Gavrilov, Nemanja and Mentus, Slavko and Krstić, Jugoslav and Mitrić, Miodrag and Travas-Sejdic, Jadranka and Ciric-Marjanovic, Gordana",
year = "2012",
abstract = "Microporous conducting nitrogen-containing nanostructured carbon with excellent catalytic activity for the electrochemical synthesis of hydrogen peroxide was synthesized by the carbonization of self-assembled polyaniline 3,5-dinitrosalicylate nanorods. Carbonization was carried out by means of gradual heating in a nitrogen atmosphere up to 800 degrees C. Carbonized polyaniline nanorods containing 9.8 wt.% of nitrogen had a conductivity of 0.35 S cm(-1). The electrical characteristics, morphology, textural parameters, elemental composition, molecular structure and crystallinity of novel carbonized nanostructured polyaniline were investigated by conductivity measurements, scanning and transmission electron microscopies, nitrogen adsorption-desorption measurements, elemental microanalysis, XPS, FTIR and Raman spectroscopies, and XRD, respectively. The electrocatalytic activity of carbonized polyaniline nanorods towards oxygen reduction in alkaline conditions has been studied by the voltammetry with the rotating disk electrode.",
publisher = "Elsevier",
journal = "Microporous and Mesoporous Materials",
title = "Microporous conducting carbonized polyaniline nanorods: Synthesis, characterization and electrocatalytic properties",
volume = "152",
pages = "50-57",
doi = "10.1016/j.micromeso.2011.12.002"
}

Janošević, A., Pasti, I., Gavrilov, N., Mentus, S., Krstić, J., Mitrić, M., Travas-Sejdic, J.,& Ciric-Marjanovic, G.. (2012). Microporous conducting carbonized polyaniline nanorods: Synthesis, characterization and electrocatalytic properties. in Microporous and Mesoporous Materials
Elsevier., 152, 50-57.
https://doi.org/10.1016/j.micromeso.2011.12.002

Janošević A, Pasti I, Gavrilov N, Mentus S, Krstić J, Mitrić M, Travas-Sejdic J, Ciric-Marjanovic G. Microporous conducting carbonized polyaniline nanorods: Synthesis, characterization and electrocatalytic properties. in Microporous and Mesoporous Materials. 2012;152:50-57.
doi:10.1016/j.micromeso.2011.12.002 .

Janošević, Aleksandra, Pasti, Igor, Gavrilov, Nemanja, Mentus, Slavko, Krstić, Jugoslav, Mitrić, Miodrag, Travas-Sejdic, Jadranka, Ciric-Marjanovic, Gordana, "Microporous conducting carbonized polyaniline nanorods: Synthesis, characterization and electrocatalytic properties" in Microporous and Mesoporous Materials, 152 (2012):50-57,
https://doi.org/10.1016/j.micromeso.2011.12.002 . .

TY  - JOUR
AU  - Janošević, Aleksandra
AU  - Pasti, Igor
AU  - Gavrilov, Nemanja
AU  - Mentus, Slavko
AU  - Ciric-Marjanovic, Gordana
AU  - Krstić, Jugoslav
AU  - Stejskal, Jaroslav
PY  - 2011
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/823
AB  - Micro/mesoporous conducting nitrogen-containing carbon nanorods/nanotubes with high surface area, and excellent electrocatalytic activity for the oxygen reduction reaction, were synthesized by the carbonization of self-assembled polyaniline (PANI) 5-sulfosalicylate nanorods/nanotubes. Carbonization was carried out by means of gradual heating in a nitrogen atmosphere up to 800 degrees C. The morphology of the PANI 5-sulfosalicylate was preserved after carbonization. Carbonized PANI nanostructures containing similar to 10 wt% of nitrogen had a conductivity of 0.8 S cm(-1). The influence of the carbonization on the porosity and specific surface area of the nanostructured PANI has been analyzed. The morphology, elemental composition, molecular structure, surface area, and electrical characteristics of novel carbonized nanostructured PANI were investigated by scanning and transmission electron microscopies, elemental microanalysis, FTIR and Raman spectroscopies, nitrogen adsorption-desorption and conductivity measurements, respectively. The electrocatalytic activity of carbonized PANI 5-sulfosalicylate nanorods/nanotubes material towards oxygen reduction reaction in alkaline conditions has been studied by the voltammetry with the rotating disc electrode.
PB  - Elsevier Science Sa, Lausanne
T2  - Synthetic Metals
T1  - Micro/mesoporous conducting carbonized polyaniline 5-sulfosalicylate nanorods/nanotubes: Synthesis, characterization and electrocatalysis
VL  - 161
IS  - 19-20
SP  - 2179
EP  - 2184
DO  - 10.1016/j.synthmet.2011.08.028
ER  - 

@article{
author = "Janošević, Aleksandra and Pasti, Igor and Gavrilov, Nemanja and Mentus, Slavko and Ciric-Marjanovic, Gordana and Krstić, Jugoslav and Stejskal, Jaroslav",
year = "2011",
abstract = "Micro/mesoporous conducting nitrogen-containing carbon nanorods/nanotubes with high surface area, and excellent electrocatalytic activity for the oxygen reduction reaction, were synthesized by the carbonization of self-assembled polyaniline (PANI) 5-sulfosalicylate nanorods/nanotubes. Carbonization was carried out by means of gradual heating in a nitrogen atmosphere up to 800 degrees C. The morphology of the PANI 5-sulfosalicylate was preserved after carbonization. Carbonized PANI nanostructures containing similar to 10 wt% of nitrogen had a conductivity of 0.8 S cm(-1). The influence of the carbonization on the porosity and specific surface area of the nanostructured PANI has been analyzed. The morphology, elemental composition, molecular structure, surface area, and electrical characteristics of novel carbonized nanostructured PANI were investigated by scanning and transmission electron microscopies, elemental microanalysis, FTIR and Raman spectroscopies, nitrogen adsorption-desorption and conductivity measurements, respectively. The electrocatalytic activity of carbonized PANI 5-sulfosalicylate nanorods/nanotubes material towards oxygen reduction reaction in alkaline conditions has been studied by the voltammetry with the rotating disc electrode.",
publisher = "Elsevier Science Sa, Lausanne",
journal = "Synthetic Metals",
title = "Micro/mesoporous conducting carbonized polyaniline 5-sulfosalicylate nanorods/nanotubes: Synthesis, characterization and electrocatalysis",
volume = "161",
number = "19-20",
pages = "2179-2184",
doi = "10.1016/j.synthmet.2011.08.028"
}

Janošević, A., Pasti, I., Gavrilov, N., Mentus, S., Ciric-Marjanovic, G., Krstić, J.,& Stejskal, J.. (2011). Micro/mesoporous conducting carbonized polyaniline 5-sulfosalicylate nanorods/nanotubes: Synthesis, characterization and electrocatalysis. in Synthetic Metals
Elsevier Science Sa, Lausanne., 161(19-20), 2179-2184.
https://doi.org/10.1016/j.synthmet.2011.08.028

Janošević A, Pasti I, Gavrilov N, Mentus S, Ciric-Marjanovic G, Krstić J, Stejskal J. Micro/mesoporous conducting carbonized polyaniline 5-sulfosalicylate nanorods/nanotubes: Synthesis, characterization and electrocatalysis. in Synthetic Metals. 2011;161(19-20):2179-2184.
doi:10.1016/j.synthmet.2011.08.028 .

Janošević, Aleksandra, Pasti, Igor, Gavrilov, Nemanja, Mentus, Slavko, Ciric-Marjanovic, Gordana, Krstić, Jugoslav, Stejskal, Jaroslav, "Micro/mesoporous conducting carbonized polyaniline 5-sulfosalicylate nanorods/nanotubes: Synthesis, characterization and electrocatalysis" in Synthetic Metals, 161, no. 19-20 (2011):2179-2184,
https://doi.org/10.1016/j.synthmet.2011.08.028 . .