Carbon Supported PtSn versus PtSnO2 Catalysts in Methanol Oxidation
Authors
Stevanovic, SanjaTripkovic, Dusan
Gavrilovic-Wohlmuther, Aleksandra
Rogan, Jelena
Lačnjevac, Uroš C.
Jovanovic, Vladislava
Article (Published version)
Metadata
Show full item recordAbstract
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.
Keywords:
platinum catalysts / microwave polyol synthesis / methanol oxidation / stability testsSource:
International Journal of Electrochemical Science, 2021, 16, 2Funding / projects:
- Ministry of Science, Technological Development and Innovation of the Republic of Serbia, institutional funding - 200026 (University of Belgrade, Institute of Chemistry, Technology and Metallurgy - IChTM) (RS-MESTD-inst-2020-200026)
DOI: 10.20964/2021.02.55
ISSN: 1452-3981
WoS: 000620082300015
Scopus: 2-s2.0-85101861360
Institution/Community
Tehnološko-metalurški fakultetTY - JOUR AU - Stevanovic, Sanja AU - Tripkovic, Dusan AU - Gavrilovic-Wohlmuther, Aleksandra AU - Rogan, Jelena AU - Lačnjevac, Uroš C. AU - Jovanovic, Vladislava PY - 2021 UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4897 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. 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 = "Stevanovic, Sanja and Tripkovic, Dusan and Gavrilovic-Wohlmuther, Aleksandra and Rogan, Jelena and Lačnjevac, Uroš C. and Jovanovic, 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.", 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" }
Stevanovic, S., Tripkovic, D., Gavrilovic-Wohlmuther, A., Rogan, J., Lačnjevac, U. C.,& Jovanovic, V.. (2021). Carbon Supported PtSn versus PtSnO2 Catalysts in Methanol Oxidation. in International Journal of Electrochemical Science, 16(2). https://doi.org/10.20964/2021.02.55
Stevanovic S, Tripkovic D, Gavrilovic-Wohlmuther A, Rogan J, Lačnjevac UC, Jovanovic 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 .
Stevanovic, Sanja, Tripkovic, Dusan, Gavrilovic-Wohlmuther, Aleksandra, Rogan, Jelena, Lačnjevac, Uroš C., Jovanovic, 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 . .