TY  - JOUR
AU  - Markovic, B.
AU  - Živković, Dragana
AU  - Manasijević, Dragan
AU  - Sokic, M.
AU  - Minic, D.
AU  - Talijan, Nadežda M.
AU  - Stajić-Trošić, Jasna
PY  - 2014
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/1514
AB  - The Bi-Cu-Ni ternary system belongs to the group of potential Cu-Ni-based advanced lead-free solder materials for high temperature application. In this study microstructure investigation of the slow-cooled Bi-Cu-Ni samples was done using SEM-EDS analysis. The samples compositions were chosen along three cross-sections with molar ratio Cu:Ni=1:3, 1:1 and 3:1. The experimentally obtained phase structure was compared with the results of thermodynamic calculation according to CALPHAD method. Also, new results regarding thermal and electrical properties investigations of these alloys are presented in this paper, based on DSC and electroconductivity measurements.
PB  - Polish Acad Sciences Committee Metallurgy, Krakow
T2  - Archives of Metallurgy and Materials
T1  - Thermal, structural and electrical properties of some bi-cu-ni alloys
VL  - 59
IS  - 1
SP  - 117
EP  - 120
DO  - 10.2478/amm-2014-0018
ER  - 

@article{
author = "Markovic, B. and Živković, Dragana and Manasijević, Dragan and Sokic, M. and Minic, D. and Talijan, Nadežda M. and Stajić-Trošić, Jasna",
year = "2014",
abstract = "The Bi-Cu-Ni ternary system belongs to the group of potential Cu-Ni-based advanced lead-free solder materials for high temperature application. In this study microstructure investigation of the slow-cooled Bi-Cu-Ni samples was done using SEM-EDS analysis. The samples compositions were chosen along three cross-sections with molar ratio Cu:Ni=1:3, 1:1 and 3:1. The experimentally obtained phase structure was compared with the results of thermodynamic calculation according to CALPHAD method. Also, new results regarding thermal and electrical properties investigations of these alloys are presented in this paper, based on DSC and electroconductivity measurements.",
publisher = "Polish Acad Sciences Committee Metallurgy, Krakow",
journal = "Archives of Metallurgy and Materials",
title = "Thermal, structural and electrical properties of some bi-cu-ni alloys",
volume = "59",
number = "1",
pages = "117-120",
doi = "10.2478/amm-2014-0018"
}

Markovic, B., Živković, D., Manasijević, D., Sokic, M., Minic, D., Talijan, N. M.,& Stajić-Trošić, J.. (2014). Thermal, structural and electrical properties of some bi-cu-ni alloys. in Archives of Metallurgy and Materials
Polish Acad Sciences Committee Metallurgy, Krakow., 59(1), 117-120.
https://doi.org/10.2478/amm-2014-0018

Markovic B, Živković D, Manasijević D, Sokic M, Minic D, Talijan NM, Stajić-Trošić J. Thermal, structural and electrical properties of some bi-cu-ni alloys. in Archives of Metallurgy and Materials. 2014;59(1):117-120.
doi:10.2478/amm-2014-0018 .

Markovic, B., Živković, Dragana, Manasijević, Dragan, Sokic, M., Minic, D., Talijan, Nadežda M., Stajić-Trošić, Jasna, "Thermal, structural and electrical properties of some bi-cu-ni alloys" in Archives of Metallurgy and Materials, 59, no. 1 (2014):117-120,
https://doi.org/10.2478/amm-2014-0018 . .

TY  - JOUR
AU  - Premović, Milena
AU  - Minic, D.
AU  - Manasijević, Dragan
AU  - Ćosović, Vladan
AU  - Živković, Dragana
AU  - Dervisevic, I.
AU  - Talijan, Nadežda M.
PY  - 2014
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/1510
AB  - This paper presents comparative review of experimental and thermodynamic assessment of ternary Ag-Sb-Zn system. Isothermal section of the Ag-Sb-Zn system at 300 degrees C has been calculated by CALPHAD method using thermodynamic parameters from literature. Microstructural analysis of a number of alloys was carried out by scanning electron microscopy and optical microscopy, whereas chemical composition of observed phases was analyzed using energy dispersive X-ray spectroscopy. Hardness of selected alloys from four vertical sections was determined using Brinell hardness test and additionally by micro Vickers hardness test. Electrical conductivity of a number of alloys in the ternary Ag-Sb-Zn system was experimentally determined. Good overall agreement between experimental and calculated values was obtained.
PB  - Chinese Acad Sciences, Inst Metal Research, Shenyang
T2  - Acta Metallurgica Sinica-English Letters
T1  - Mechanical and Electrical Properties of the Ternary Ag-Sb-Zn System
VL  - 27
IS  - 1
SP  - 47
EP  - 54
DO  - 10.1007/s40195-013-0016-0
ER  - 

@article{
author = "Premović, Milena and Minic, D. and Manasijević, Dragan and Ćosović, Vladan and Živković, Dragana and Dervisevic, I. and Talijan, Nadežda M.",
year = "2014",
abstract = "This paper presents comparative review of experimental and thermodynamic assessment of ternary Ag-Sb-Zn system. Isothermal section of the Ag-Sb-Zn system at 300 degrees C has been calculated by CALPHAD method using thermodynamic parameters from literature. Microstructural analysis of a number of alloys was carried out by scanning electron microscopy and optical microscopy, whereas chemical composition of observed phases was analyzed using energy dispersive X-ray spectroscopy. Hardness of selected alloys from four vertical sections was determined using Brinell hardness test and additionally by micro Vickers hardness test. Electrical conductivity of a number of alloys in the ternary Ag-Sb-Zn system was experimentally determined. Good overall agreement between experimental and calculated values was obtained.",
publisher = "Chinese Acad Sciences, Inst Metal Research, Shenyang",
journal = "Acta Metallurgica Sinica-English Letters",
title = "Mechanical and Electrical Properties of the Ternary Ag-Sb-Zn System",
volume = "27",
number = "1",
pages = "47-54",
doi = "10.1007/s40195-013-0016-0"
}

Premović, M., Minic, D., Manasijević, D., Ćosović, V., Živković, D., Dervisevic, I.,& Talijan, N. M.. (2014). Mechanical and Electrical Properties of the Ternary Ag-Sb-Zn System. in Acta Metallurgica Sinica-English Letters
Chinese Acad Sciences, Inst Metal Research, Shenyang., 27(1), 47-54.
https://doi.org/10.1007/s40195-013-0016-0

Premović M, Minic D, Manasijević D, Ćosović V, Živković D, Dervisevic I, Talijan NM. Mechanical and Electrical Properties of the Ternary Ag-Sb-Zn System. in Acta Metallurgica Sinica-English Letters. 2014;27(1):47-54.
doi:10.1007/s40195-013-0016-0 .

Premović, Milena, Minic, D., Manasijević, Dragan, Ćosović, Vladan, Živković, Dragana, Dervisevic, I., Talijan, Nadežda M., "Mechanical and Electrical Properties of the Ternary Ag-Sb-Zn System" in Acta Metallurgica Sinica-English Letters, 27, no. 1 (2014):47-54,
https://doi.org/10.1007/s40195-013-0016-0 . .

TY  - JOUR
AU  - Ćosović, Vladan
AU  - Minic, D.
AU  - Manasijević, Dragan
AU  - Kolarevic, M.
AU  - Talijan, Nadežda M.
AU  - Živković, Dragana
PY  - 2012
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/1136
AB  - Considering the importance of the lead-free solders, alloys of ternary Bi-Sb-Zn system were characterized by microstructural SEM-EDS and optical microscopy analysis, Brinell hardness tests and electrical conductivity measurements. Isothermal cross section at 298 K was calculated using CALPHAD method and PANDAT 8.1 software package. The phases on calculated cross sections were found to be in a good agreement with experimentally determined phase compositions in analyzed microstructures.
PB  - Redakcia Kovove Materialy, Bratislava 38
T2  - Kovove Materialy-Metallic Materials
T1  - Study of electrical conductivity and hardness of the alloys of ternary Bi-Sb-Zn system and calculation of isothermal section at 298 K
VL  - 50
IS  - 3
SP  - 161
EP  - 167
DO  - 10.4149/km_2012_3_161
ER  - 

@article{
author = "Ćosović, Vladan and Minic, D. and Manasijević, Dragan and Kolarevic, M. and Talijan, Nadežda M. and Živković, Dragana",
year = "2012",
abstract = "Considering the importance of the lead-free solders, alloys of ternary Bi-Sb-Zn system were characterized by microstructural SEM-EDS and optical microscopy analysis, Brinell hardness tests and electrical conductivity measurements. Isothermal cross section at 298 K was calculated using CALPHAD method and PANDAT 8.1 software package. The phases on calculated cross sections were found to be in a good agreement with experimentally determined phase compositions in analyzed microstructures.",
publisher = "Redakcia Kovove Materialy, Bratislava 38",
journal = "Kovove Materialy-Metallic Materials",
title = "Study of electrical conductivity and hardness of the alloys of ternary Bi-Sb-Zn system and calculation of isothermal section at 298 K",
volume = "50",
number = "3",
pages = "161-167",
doi = "10.4149/km_2012_3_161"
}

Ćosović, V., Minic, D., Manasijević, D., Kolarevic, M., Talijan, N. M.,& Živković, D.. (2012). Study of electrical conductivity and hardness of the alloys of ternary Bi-Sb-Zn system and calculation of isothermal section at 298 K. in Kovove Materialy-Metallic Materials
Redakcia Kovove Materialy, Bratislava 38., 50(3), 161-167.
https://doi.org/10.4149/km_2012_3_161

Ćosović V, Minic D, Manasijević D, Kolarevic M, Talijan NM, Živković D. Study of electrical conductivity and hardness of the alloys of ternary Bi-Sb-Zn system and calculation of isothermal section at 298 K. in Kovove Materialy-Metallic Materials. 2012;50(3):161-167.
doi:10.4149/km_2012_3_161 .

Ćosović, Vladan, Minic, D., Manasijević, Dragan, Kolarevic, M., Talijan, Nadežda M., Živković, Dragana, "Study of electrical conductivity and hardness of the alloys of ternary Bi-Sb-Zn system and calculation of isothermal section at 298 K" in Kovove Materialy-Metallic Materials, 50, no. 3 (2012):161-167,
https://doi.org/10.4149/km_2012_3_161 . .

TY  - JOUR
AU  - Živković, Dragana
AU  - Manasijević, Dragan
AU  - Balanović, Ljubiša
AU  - Minic, D.
AU  - Ćosović, Vladan
AU  - Kostov, A.
AU  - Zivkovic, Z.
PY  - 2012
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/1054
AB  - The results of phase relations investigation in bismuth-rich part of ternary Bi-Ga-Ni system are presented in this paper. Two sections with constant bismuth content equal to 80 and 90 at% were investigated experimentally using DSC and SEM-EDS methods and predicted thermodynamically by CALPHAD method. Calculated phase diagrams showed reasonable agreement with experimental data.
PB  - Technical Faculty, Bor
T2  - Journal of Mining and Metallurgy B: Metallurgy
T1  - Phase relations in bi - rich part of the bi-ga-ni system
VL  - 48
IS  - 3
SP  - 375
EP  - 381
DO  - 10.2298/JMMB121024047Z
ER  - 

@article{
author = "Živković, Dragana and Manasijević, Dragan and Balanović, Ljubiša and Minic, D. and Ćosović, Vladan and Kostov, A. and Zivkovic, Z.",
year = "2012",
abstract = "The results of phase relations investigation in bismuth-rich part of ternary Bi-Ga-Ni system are presented in this paper. Two sections with constant bismuth content equal to 80 and 90 at% were investigated experimentally using DSC and SEM-EDS methods and predicted thermodynamically by CALPHAD method. Calculated phase diagrams showed reasonable agreement with experimental data.",
publisher = "Technical Faculty, Bor",
journal = "Journal of Mining and Metallurgy B: Metallurgy",
title = "Phase relations in bi - rich part of the bi-ga-ni system",
volume = "48",
number = "3",
pages = "375-381",
doi = "10.2298/JMMB121024047Z"
}

Živković, D., Manasijević, D., Balanović, L., Minic, D., Ćosović, V., Kostov, A.,& Zivkovic, Z.. (2012). Phase relations in bi - rich part of the bi-ga-ni system. in Journal of Mining and Metallurgy B: Metallurgy
Technical Faculty, Bor., 48(3), 375-381.
https://doi.org/10.2298/JMMB121024047Z

Živković D, Manasijević D, Balanović L, Minic D, Ćosović V, Kostov A, Zivkovic Z. Phase relations in bi - rich part of the bi-ga-ni system. in Journal of Mining and Metallurgy B: Metallurgy. 2012;48(3):375-381.
doi:10.2298/JMMB121024047Z .

Živković, Dragana, Manasijević, Dragan, Balanović, Ljubiša, Minic, D., Ćosović, Vladan, Kostov, A., Zivkovic, Z., "Phase relations in bi - rich part of the bi-ga-ni system" in Journal of Mining and Metallurgy B: Metallurgy, 48, no. 3 (2012):375-381,
https://doi.org/10.2298/JMMB121024047Z . .

TY  - JOUR
AU  - Ćosović, Vladan
AU  - Talijan, Nadežda M.
AU  - Živković, Dragana
AU  - Minic, D.
AU  - Zivkovic, Z.
PY  - 2012
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/993
AB  - Changes in physical properties such as density, porosity, hardness and electrical conductivity of the Ag-SnO2 and Ag-SnO2In2O3 electrical contact materials induced by introduction of metal oxide nanoparticles were investigated. Properties of the obtained silver- metal oxide nanoparticle composites are discussed and presented in comparison to their counterparts with the micro metal oxide particles as well as comparable Ag-SnO2WO3 and Ag-ZnO contact materials. Studied silver-metal oxide composites were produced by powder metallurgy method from very fine pure silver and micro- and nanoparticle metal oxide powders. Very uniform microstructures were obtained for all investigated composites and they exhibited physical properties that are comparable with relevant properties of equivalent commercial silver based electrical contact materials. Both Ag-SnO2 and Ag-SnO2 and Ag-SnO2In2O3 composites with metal oxide nanoparticles were found to have lower porosity, higher density and hardness than their respective counterparts which can be attributed to better dispersion hardening i.e. higher degree of dispersion of metal oxide in silver matrix.
PB  - Technical Faculty, Bor
T2  - Journal of Mining and Metallurgy B: Metallurgy
T1  - Comparison of properties of silver-metal oxide electrical contact materials
VL  - 48
IS  - 1
SP  - 131
EP  - 141
DO  - 10.2298/JMMB111101013C
ER  - 

@article{
author = "Ćosović, Vladan and Talijan, Nadežda M. and Živković, Dragana and Minic, D. and Zivkovic, Z.",
year = "2012",
abstract = "Changes in physical properties such as density, porosity, hardness and electrical conductivity of the Ag-SnO2 and Ag-SnO2In2O3 electrical contact materials induced by introduction of metal oxide nanoparticles were investigated. Properties of the obtained silver- metal oxide nanoparticle composites are discussed and presented in comparison to their counterparts with the micro metal oxide particles as well as comparable Ag-SnO2WO3 and Ag-ZnO contact materials. Studied silver-metal oxide composites were produced by powder metallurgy method from very fine pure silver and micro- and nanoparticle metal oxide powders. Very uniform microstructures were obtained for all investigated composites and they exhibited physical properties that are comparable with relevant properties of equivalent commercial silver based electrical contact materials. Both Ag-SnO2 and Ag-SnO2 and Ag-SnO2In2O3 composites with metal oxide nanoparticles were found to have lower porosity, higher density and hardness than their respective counterparts which can be attributed to better dispersion hardening i.e. higher degree of dispersion of metal oxide in silver matrix.",
publisher = "Technical Faculty, Bor",
journal = "Journal of Mining and Metallurgy B: Metallurgy",
title = "Comparison of properties of silver-metal oxide electrical contact materials",
volume = "48",
number = "1",
pages = "131-141",
doi = "10.2298/JMMB111101013C"
}

Ćosović, V., Talijan, N. M., Živković, D., Minic, D.,& Zivkovic, Z.. (2012). Comparison of properties of silver-metal oxide electrical contact materials. in Journal of Mining and Metallurgy B: Metallurgy
Technical Faculty, Bor., 48(1), 131-141.
https://doi.org/10.2298/JMMB111101013C

Ćosović V, Talijan NM, Živković D, Minic D, Zivkovic Z. Comparison of properties of silver-metal oxide electrical contact materials. in Journal of Mining and Metallurgy B: Metallurgy. 2012;48(1):131-141.
doi:10.2298/JMMB111101013C .

Ćosović, Vladan, Talijan, Nadežda M., Živković, Dragana, Minic, D., Zivkovic, Z., "Comparison of properties of silver-metal oxide electrical contact materials" in Journal of Mining and Metallurgy B: Metallurgy, 48, no. 1 (2012):131-141,
https://doi.org/10.2298/JMMB111101013C . .

TY  - JOUR
AU  - Stevanović, Sanja
AU  - Tripković, Dušan
AU  - Rogan, Jelena R.
AU  - Minic, D.
AU  - Gavrilović, Aleksandra
AU  - Tripković, Amalija
AU  - Jovanović, Vladislava M.
PY  - 2011
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/821
AB  - High surface area carbon supported Pt and Pt3Sn catalysts were synthesized by microwave irradiation and investigated in the ethanol electro-oxidation reaction. The catalysts were obtained using a modified polyol method in an ethylene glycol solution and were characterized in terms of structure, morphology and composition by employing XRD, STM and EDX techniques. The diffraction peaks of Pt3Sn/C catalyst in XRD patterns are shifted to lower 2 theta values with respect to the corresponding peaks at Pt/C catalyst as a consequence of alloy formation between Pt and Sn. Particle size analysis from STM and XRD shows that Pt and Pt3Sn clusters are of a small diameter (similar to 2 nm) with a narrow size distribution. Pt3Sn/C catalyst is highly active in ethanol oxidation with the onset potential shifted for similar to 150 mV to more negative values and with similar to 2 times higher currents in comparison to Pt/C.
PB  - Maik Nauka/Interperiodica/Springer, New York
T2  - Russian Journal of Physical Chemistry A
T1  - Enhanced activity in ethanol oxidation of Pt3Sn electrocatalysts synthesized by microwave irradiation
VL  - 85
IS  - 13
SP  - 2299
EP  - 2304
DO  - 10.1134/S0036024411130309
ER  - 

@article{
author = "Stevanović, Sanja and Tripković, Dušan and Rogan, Jelena R. and Minic, D. and Gavrilović, Aleksandra and Tripković, Amalija and Jovanović, Vladislava M.",
year = "2011",
abstract = "High surface area carbon supported Pt and Pt3Sn catalysts were synthesized by microwave irradiation and investigated in the ethanol electro-oxidation reaction. The catalysts were obtained using a modified polyol method in an ethylene glycol solution and were characterized in terms of structure, morphology and composition by employing XRD, STM and EDX techniques. The diffraction peaks of Pt3Sn/C catalyst in XRD patterns are shifted to lower 2 theta values with respect to the corresponding peaks at Pt/C catalyst as a consequence of alloy formation between Pt and Sn. Particle size analysis from STM and XRD shows that Pt and Pt3Sn clusters are of a small diameter (similar to 2 nm) with a narrow size distribution. Pt3Sn/C catalyst is highly active in ethanol oxidation with the onset potential shifted for similar to 150 mV to more negative values and with similar to 2 times higher currents in comparison to Pt/C.",
publisher = "Maik Nauka/Interperiodica/Springer, New York",
journal = "Russian Journal of Physical Chemistry A",
title = "Enhanced activity in ethanol oxidation of Pt3Sn electrocatalysts synthesized by microwave irradiation",
volume = "85",
number = "13",
pages = "2299-2304",
doi = "10.1134/S0036024411130309"
}

Stevanović, S., Tripković, D., Rogan, J. R., Minic, D., Gavrilović, A., Tripković, A.,& Jovanović, V. M.. (2011). Enhanced activity in ethanol oxidation of Pt3Sn electrocatalysts synthesized by microwave irradiation. in Russian Journal of Physical Chemistry A
Maik Nauka/Interperiodica/Springer, New York., 85(13), 2299-2304.
https://doi.org/10.1134/S0036024411130309

Stevanović S, Tripković D, Rogan JR, Minic D, Gavrilović A, Tripković A, Jovanović VM. Enhanced activity in ethanol oxidation of Pt3Sn electrocatalysts synthesized by microwave irradiation. in Russian Journal of Physical Chemistry A. 2011;85(13):2299-2304.
doi:10.1134/S0036024411130309 .

Stevanović, Sanja, Tripković, Dušan, Rogan, Jelena R., Minic, D., Gavrilović, Aleksandra, Tripković, Amalija, Jovanović, Vladislava M., "Enhanced activity in ethanol oxidation of Pt3Sn electrocatalysts synthesized by microwave irradiation" in Russian Journal of Physical Chemistry A, 85, no. 13 (2011):2299-2304,
https://doi.org/10.1134/S0036024411130309 . .

TY  - JOUR
AU  - Živković, Dragana
AU  - Minic, D.
AU  - Manasijević, Dragan
AU  - Talijan, Nadežda M.
AU  - Balanović, Ljubiša
AU  - Mitovski, A.
AU  - Ćosović, Vladan
AU  - Rangelov, I.
PY  - 2010
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/664
AB  - The results of phase equilibria investigation and characterization of the alloys in the Bi-Ga10Sb90 section of Ga-Bi-Sb system are presented in this paper. Phase diagram of the mentioned section has been calculated according to CALPHAD model, using Pandat software. In the frame of alloys characterization, structural, mechanical and electrical characteristics were determined using SEM-EDX analysis, microhardness and electroconductivity measurements.
PB  - Natl Inst Optoelectronics, Bucharest-Magurele
T2  - Journal of Optoelectronics and Advanced Materials
T1  - Phase diagram investigation and characterization of alloys in Bi-Ga10Sb90 section of Ga-Bi-Sb system
VL  - 12
IS  - 6
SP  - 1262
EP  - 1267
UR  - https://hdl.handle.net/21.15107/rcub_cer_664
ER  - 

@article{
author = "Živković, Dragana and Minic, D. and Manasijević, Dragan and Talijan, Nadežda M. and Balanović, Ljubiša and Mitovski, A. and Ćosović, Vladan and Rangelov, I.",
year = "2010",
abstract = "The results of phase equilibria investigation and characterization of the alloys in the Bi-Ga10Sb90 section of Ga-Bi-Sb system are presented in this paper. Phase diagram of the mentioned section has been calculated according to CALPHAD model, using Pandat software. In the frame of alloys characterization, structural, mechanical and electrical characteristics were determined using SEM-EDX analysis, microhardness and electroconductivity measurements.",
publisher = "Natl Inst Optoelectronics, Bucharest-Magurele",
journal = "Journal of Optoelectronics and Advanced Materials",
title = "Phase diagram investigation and characterization of alloys in Bi-Ga10Sb90 section of Ga-Bi-Sb system",
volume = "12",
number = "6",
pages = "1262-1267",
url = "https://hdl.handle.net/21.15107/rcub_cer_664"
}

Živković, D., Minic, D., Manasijević, D., Talijan, N. M., Balanović, L., Mitovski, A., Ćosović, V.,& Rangelov, I.. (2010). Phase diagram investigation and characterization of alloys in Bi-Ga10Sb90 section of Ga-Bi-Sb system. in Journal of Optoelectronics and Advanced Materials
Natl Inst Optoelectronics, Bucharest-Magurele., 12(6), 1262-1267.
https://hdl.handle.net/21.15107/rcub_cer_664

Živković D, Minic D, Manasijević D, Talijan NM, Balanović L, Mitovski A, Ćosović V, Rangelov I. Phase diagram investigation and characterization of alloys in Bi-Ga10Sb90 section of Ga-Bi-Sb system. in Journal of Optoelectronics and Advanced Materials. 2010;12(6):1262-1267.
https://hdl.handle.net/21.15107/rcub_cer_664 .

Živković, Dragana, Minic, D., Manasijević, Dragan, Talijan, Nadežda M., Balanović, Ljubiša, Mitovski, A., Ćosović, Vladan, Rangelov, I., "Phase diagram investigation and characterization of alloys in Bi-Ga10Sb90 section of Ga-Bi-Sb system" in Journal of Optoelectronics and Advanced Materials, 12, no. 6 (2010):1262-1267,
https://hdl.handle.net/21.15107/rcub_cer_664 .

TY  - JOUR
AU  - Stevanović, Sanja
AU  - Tripković, Dušan
AU  - Kowal, Andrzej
AU  - Minic, D.
AU  - Jovanović, Vladislava M.
AU  - Tripković, Amalija
PY  - 2008
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/379
AB  - Platinum supported on glassy carbon (GC) was used as a model system for studying the influence of the surface morphology of a Pt catalyst on methanol oxidation in alkaline and acidic solutions. Platinum was deposited by the potential step method on GC samples from H2SO4 + H2PtCl6 solution under the same conditions with loadings from 10 to 80 mg cm-2. AFM and STM images of the GC/Pt electrodes showed that the Pt was deposited in the form of 3D agglomerates composed of spherical particles. Longer deposition times resulted in increased growth of Pt forms and a decrease in the specific area of the Pt. The real surface area of Pt increased with loading but the changes were almost negligible at higher loadings. Nevertheless, both the specific and mass activity of platinum supported on glassy carbon for methanol oxidation in acidic and in alkaline solutions exhibit a volcanic dependence with respect to the platinum loading. The increase in the activity can be explained by the increasing the particle size with the loading and thus an increase in the contiguous Pt sites available for adsorption and decomposition of methanol. However, the decrease in the activity of the catalyst with further increase of loading and particle size after reaching the maximum is related to the decrease of active sites available for methanol adsorption and their accessibility as a result of more close proximity and pronounced coalescence of the Pt particles.
AB  - Platina istaložena na staklasti ugljenik (GC) korišćena je kao model sistem za ispitivanje uticaja morfologije površine Pt katalizatora za reakciju oksidacije metanola u alkalnim i kiselim rastvorima. Platina je taložena potenciostatskom pulsnom metodom na GC podlogu iz H2SO4 + H2PtCl6 rastvora pod istim uslovima u količini od 10 to 80 mg cm-2. AFM i STM slike GC/Pt elektroda pokazuju da je Pt istaložena u obliku 3D aglomerata koji se sastoje od sfernih čestica. Duže vreme taloženja dovodi do povećanog rasta Pt formi i smanjenja specifične površine nataložene platine. Realna površina istaložene platine raste sa povećanjem količine istaložene platine dostižući plato. Bez obzira na ovo, specifična i masena aktivnost platine istaložene na staklasti ugljenik za oksidaciju metanola kako u kiselim tako i u alkalnim rastvorima pokazuje vulkansku zavisnost od količine istaložene platine. Povećanje aktivnosti se može objasniti preko povećanja veličine čestica sa količinom istaložene platine, odnosno preko povećanja susednih Pt mesta dostupnih za adsorbciju i dekompoziciju metanola. Međutim, smanjenje katalitičke aktivnosti sa daljim povećanjem količine istaložene platine i veličine njenih čestica nakon postignutog maksimuma je povezano sa smanjenjem broja aktivnih mesta dostupnih za adsorpciju metanola i rezultat je smanjenja rastojanja i izraženog stapanja Pt čestica.
PB  - Serbian Chemical Society
T2  - Journal of the Serbian Chemical Society
T1  - Influence of surface morphology on methanol oxidation at a glassy carbon-supported Pt catalyst
T1  - Uticaj površinske morfologije na oksidaciju metanola na platinskim katalizatorima sa podlogom od staklastog ugljenika
VL  - 73
IS  - 8-9
SP  - 845
EP  - 859
DO  - 10.2298/JSC0809845S
ER  - 

@article{
author = "Stevanović, Sanja and Tripković, Dušan and Kowal, Andrzej and Minic, D. and Jovanović, Vladislava M. and Tripković, Amalija",
year = "2008",
abstract = "Platinum supported on glassy carbon (GC) was used as a model system for studying the influence of the surface morphology of a Pt catalyst on methanol oxidation in alkaline and acidic solutions. Platinum was deposited by the potential step method on GC samples from H2SO4 + H2PtCl6 solution under the same conditions with loadings from 10 to 80 mg cm-2. AFM and STM images of the GC/Pt electrodes showed that the Pt was deposited in the form of 3D agglomerates composed of spherical particles. Longer deposition times resulted in increased growth of Pt forms and a decrease in the specific area of the Pt. The real surface area of Pt increased with loading but the changes were almost negligible at higher loadings. Nevertheless, both the specific and mass activity of platinum supported on glassy carbon for methanol oxidation in acidic and in alkaline solutions exhibit a volcanic dependence with respect to the platinum loading. The increase in the activity can be explained by the increasing the particle size with the loading and thus an increase in the contiguous Pt sites available for adsorption and decomposition of methanol. However, the decrease in the activity of the catalyst with further increase of loading and particle size after reaching the maximum is related to the decrease of active sites available for methanol adsorption and their accessibility as a result of more close proximity and pronounced coalescence of the Pt particles., Platina istaložena na staklasti ugljenik (GC) korišćena je kao model sistem za ispitivanje uticaja morfologije površine Pt katalizatora za reakciju oksidacije metanola u alkalnim i kiselim rastvorima. Platina je taložena potenciostatskom pulsnom metodom na GC podlogu iz H2SO4 + H2PtCl6 rastvora pod istim uslovima u količini od 10 to 80 mg cm-2. AFM i STM slike GC/Pt elektroda pokazuju da je Pt istaložena u obliku 3D aglomerata koji se sastoje od sfernih čestica. Duže vreme taloženja dovodi do povećanog rasta Pt formi i smanjenja specifične površine nataložene platine. Realna površina istaložene platine raste sa povećanjem količine istaložene platine dostižući plato. Bez obzira na ovo, specifična i masena aktivnost platine istaložene na staklasti ugljenik za oksidaciju metanola kako u kiselim tako i u alkalnim rastvorima pokazuje vulkansku zavisnost od količine istaložene platine. Povećanje aktivnosti se može objasniti preko povećanja veličine čestica sa količinom istaložene platine, odnosno preko povećanja susednih Pt mesta dostupnih za adsorbciju i dekompoziciju metanola. Međutim, smanjenje katalitičke aktivnosti sa daljim povećanjem količine istaložene platine i veličine njenih čestica nakon postignutog maksimuma je povezano sa smanjenjem broja aktivnih mesta dostupnih za adsorpciju metanola i rezultat je smanjenja rastojanja i izraženog stapanja Pt čestica.",
publisher = "Serbian Chemical Society",
journal = "Journal of the Serbian Chemical Society",
title = "Influence of surface morphology on methanol oxidation at a glassy carbon-supported Pt catalyst, Uticaj površinske morfologije na oksidaciju metanola na platinskim katalizatorima sa podlogom od staklastog ugljenika",
volume = "73",
number = "8-9",
pages = "845-859",
doi = "10.2298/JSC0809845S"
}

Stevanović, S., Tripković, D., Kowal, A., Minic, D., Jovanović, V. M.,& Tripković, A.. (2008). Influence of surface morphology on methanol oxidation at a glassy carbon-supported Pt catalyst. in Journal of the Serbian Chemical Society
Serbian Chemical Society., 73(8-9), 845-859.
https://doi.org/10.2298/JSC0809845S

Stevanović S, Tripković D, Kowal A, Minic D, Jovanović VM, Tripković A. Influence of surface morphology on methanol oxidation at a glassy carbon-supported Pt catalyst. in Journal of the Serbian Chemical Society. 2008;73(8-9):845-859.
doi:10.2298/JSC0809845S .

Stevanović, Sanja, Tripković, Dušan, Kowal, Andrzej, Minic, D., Jovanović, Vladislava M., Tripković, Amalija, "Influence of surface morphology on methanol oxidation at a glassy carbon-supported Pt catalyst" in Journal of the Serbian Chemical Society, 73, no. 8-9 (2008):845-859,
https://doi.org/10.2298/JSC0809845S . .