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Title

Platinum ruthenium catalysts supported on carbon xerogel for methanol electro-oxidation: Influence of the catalyst synthesis method

AuthorsAlegre Gresa, Cinthia; Gálvez Parruca, María Elena; Moliner Álvarez, Rafael; Baglio, Vincenzo; Stassi, Alessandro; Aricò, Antonino Salvatore; Lázaro Elorri, María Jesús
KeywordsCarbon
Gels
Oxidation
Platinum
Supported
Catalysts
Synthetic methods
Issue Date20-Sep-2013
PublisherWiley-VCH
CitationChemCatChem 5(12): 3770 – 3780 (2013)
AbstractA high surface area, highly mesoporous carbon xerogel was synthesised and used as a support in the preparation of platinum– ruthenium catalysts by different synthetic routes. The platinum–ruthenium carbon xerogel catalysts were physicochemically characterised and used for the chemical electro-oxidation of methanol. The synthetic routes pursued included: 1) impregnation with metal chloride precursors and reduction with two different reducing agents: sodium borohydride and formic acid; 2) a microemulsion-based method and 3) a sulfite complex method, which led to catalysts with different physicochemical features that strongly influence their catalytic behaviour towards methanol oxidation. The electro-oxidation of methanol was found to depend on both the crystal size and the extent of active phase reduction as well as on the platinum concentration on the catalyst surface, which were maximised for the impregnation method and reduction with formic acid.
Description11 páginas.- 8 figuras.- 5 tablas.- Publicado el 20 de septiembre de 2013.-
Publisher version (URL)https://doi.org/10.1002/cctc.201300542
URIhttp://hdl.handle.net/10261/93844
ISSN1867-3880
E-ISSN1867-3899
Appears in Collections:(ICB) Artículos
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