PtRh@Pt5C/Catalyst Preparation for Methanol Electrooxidation

Li Fang; Xiao Xiao Guo; Yue Peng Liu; Xiao Ping Huang; Surin Saipanya

doi:10.4028/www.scientific.net/AMR.236-238.1073

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 236-238PtRh@Pt5C/Catalyst Preparation for Methanol...

PtRh@Pt₅C/Catalyst Preparation for Methanol Electrooxidation

Abstract:

Bimetallic catalysts PtRh@Pt₅/C with different deposit structures were prepared by force deposition followed calcination at 400°C and characterized by cyclic voltammetry (CV) combined with XRD. The activity of the obtained catalysts was examined in methanol electrooxidation by CV. It was found that PtRh@Pt₅/C catalysts achieved higher catalytic activity and better tolerance to CO compared with Pt₅/C. The surfaces of PtRh@Pt₅/C derived from sandwich-like deposit structure was composed of crystallites and amorphous of PtRh alloys, showing exceptional catalytic activity in methanol oxidation with peak potential shifting 0.03V negatively and 90% increase in current density.

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Periodical:

Advanced Materials Research (Volumes 236-238)

Pages:

1073-1077

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.236-238.1073

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Online since:

May 2011

Authors:

Li Fang, Xiao Xiao Guo, Yue Peng Liu, Xiao Ping Huang, Surin Saipanya

Keywords:

Bimetallic Catalyst, Cyclic Voltammetry (CV), Methanol Electrooxidation, Ptrh@pt/C

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