Journal
ELECTROCHEMISTRY COMMUNICATIONS
Volume 13, Issue 7, Pages 704-706Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.elecom.2011.04.015
Keywords
Electrocatalysis; Methanol; Platinum; Nanoparticle; Support
Categories
Funding
- Natural Sciences and Engineering Research Council of Canada
- Memorial University
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The effects of Ru oxide and polyaniline supports on methanol oxidation have been investigated by drop coating of Pt nanoparticles onto glassy carbon electrodes coated with these materials. A thin Ru oxide film, deposited by the spontaneous reaction of Ru(VII) with the carbon surface, has been shown to exert a substantial effect, while the effects of polyaniline were insignificant. The influence of Ru oxide is attributed to the well-known bifunctional mechanism, while previous reports of enhanced methanol oxidation at polyaniline supported Pt catalysts are attributed to better Pt dispersion and/or enhanced transport properties of the catalysts. (C) 2011 Elsevier B.V. All rights reserved.
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