Highly active Pt-on-Au catalysts for methanol oxidation in alkaline media involving a synergistic interaction between Pt and Au

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DOIResolve DOI: http://doi.org/10.1016/j.electacta.2014.01.044
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TypeArticle
Journal titleElectrochimica Acta
ISSN0013-4686
Volume123
Pages309316; # of pages: 8
SubjectAdsorption site; Catalytic mechanisms; Methanol Oxidation; Methanol oxidation reactions; Site selective; Synergetic effect; Synergism; Synergistic interaction; Catalysts; Electrodeposition; Excitons; Methanol; Platinum
AbstractSeveral Pt-on-Au/SnO2-CNTs catalysts with different Pt loadings are synthesized through site-selective electrodeposition for catalytic methanol oxidation reaction (MOR) in alkaline media. The catalysts are tested to exhibit extremely high Pt mass activity towards MOR, and the catalytic mechanism is proposed based on the synergetic effect between Pt and Au, in which the Pt entities provide Pt-OH for oxidation of alkoxide (CH3O-) while the Au surfaces provide adsorption sites for alkoxide. It is expected that this mechanism could be extended to developing high performance non-Pt catalysts for MOR in alkaline media.
Publication date
PublisherElsevier
LanguageEnglish
AffiliationNational Research Council Canada; Energy, Mining and Environment
Peer reviewedYes
NPARC number21272894
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Record identifier6ca83bb5-3e4c-417e-8a59-1092d3f099da
Record created2014-12-03
Record modified2016-05-09
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