Pt, PtSn and PtSnO2 catalysts supported on high surface area carbon synthesized by microwave assisted polyol procedure were tested for methanol oxidation. Based on TGA, EDX and XRD analysis, PtSn/C is composed of Pt and Pt3Sn phase while the rest of Sn is present in a form of very small tin oxide particles. This paper focuses on structure-activity relationships for CO tolerance and methanol oxidation reactions after addition of Sn to Pt catalysts. Alloying of Sn with Pt improves the rate of CO oxidation despite the fact that the pure Sn does not react with CO and therefore activity for methanol oxidation increases similar to 2 times in comparison to Pt/C catalyst. PtSn/C catalyst shows small advantage in comparison with PtSnO2/C catalyst due to the alloyed Sn and its electronic effect. Long term stability tests also confirmed that PtSn/C catalyst is somewhat better in comparison to PtSnO2/C.
TY - JOUR
AU - Stevanović, Sanja I.
AU - Tripković, Dusan
AU - Gavrilovic-Wohlmuther, Aleksandra
AU - Rogan, Jelena
AU - Lačnjevac, Uroš
AU - Jovanović, Vladislava
PY - 2021
UR - http://rimsi.imsi.bg.ac.rs/handle/123456789/1445
AB - Pt, PtSn and PtSnO2 catalysts supported on high surface area carbon synthesized by microwave assisted polyol procedure were tested for methanol oxidation. Based on TGA, EDX and XRD analysis, PtSn/C is composed of Pt and Pt3Sn phase while the rest of Sn is present in a form of very small tin oxide particles. This paper focuses on structure-activity relationships for CO tolerance and methanol oxidation reactions after addition of Sn to Pt catalysts. Alloying of Sn with Pt improves the rate of CO oxidation despite the fact that the pure Sn does not react with CO and therefore activity for methanol oxidation increases similar to 2 times in comparison to Pt/C catalyst. PtSn/C catalyst shows small advantage in comparison with PtSnO2/C catalyst due to the alloyed Sn and its electronic effect. Long term stability tests also confirmed that PtSn/C catalyst is somewhat better in comparison to PtSnO2/C.
PB - Electrochemical Science Group, Beograd
T2 - International Journal of Electrochemical Science
T1 - Carbon Supported PtSn versus PtSnO2 Catalysts in Methanol Oxidation
IS - 2
VL - 16
DO - 10.20964/2021.02.55
ER -
@article{
author = "Stevanović, Sanja I. and Tripković, Dusan and Gavrilovic-Wohlmuther, Aleksandra and Rogan, Jelena and Lačnjevac, Uroš and Jovanović, Vladislava",
year = "2021",
abstract = "Pt, PtSn and PtSnO2 catalysts supported on high surface area carbon synthesized by microwave assisted polyol procedure were tested for methanol oxidation. Based on TGA, EDX and XRD analysis, PtSn/C is composed of Pt and Pt3Sn phase while the rest of Sn is present in a form of very small tin oxide particles. This paper focuses on structure-activity relationships for CO tolerance and methanol oxidation reactions after addition of Sn to Pt catalysts. Alloying of Sn with Pt improves the rate of CO oxidation despite the fact that the pure Sn does not react with CO and therefore activity for methanol oxidation increases similar to 2 times in comparison to Pt/C catalyst. PtSn/C catalyst shows small advantage in comparison with PtSnO2/C catalyst due to the alloyed Sn and its electronic effect. Long term stability tests also confirmed that PtSn/C catalyst is somewhat better in comparison to PtSnO2/C.",
publisher = "Electrochemical Science Group, Beograd",
journal = "International Journal of Electrochemical Science",
title = "Carbon Supported PtSn versus PtSnO2 Catalysts in Methanol Oxidation",
number = "2",
volume = "16",
doi = "10.20964/2021.02.55"
}
Stevanović, S. I., Tripković, D., Gavrilovic-Wohlmuther, A., Rogan, J., Lačnjevac, U.,& Jovanović, V.. (2021). Carbon Supported PtSn versus PtSnO2 Catalysts in Methanol Oxidation. in International Journal of Electrochemical Science
Electrochemical Science Group, Beograd., 16(2).
https://doi.org/10.20964/2021.02.55
Stevanović SI, Tripković D, Gavrilovic-Wohlmuther A, Rogan J, Lačnjevac U, Jovanović V. Carbon Supported PtSn versus PtSnO2 Catalysts in Methanol Oxidation. in International Journal of Electrochemical Science. 2021;16(2).
doi:10.20964/2021.02.55 .
Stevanović, Sanja I., Tripković, Dusan, Gavrilovic-Wohlmuther, Aleksandra, Rogan, Jelena, Lačnjevac, Uroš, Jovanović, Vladislava, "Carbon Supported PtSn versus PtSnO2 Catalysts in Methanol Oxidation" in International Journal of Electrochemical Science, 16, no. 2 (2021),
https://doi.org/10.20964/2021.02.55 . .
