期刊
JOURNAL OF POWER SOURCES
卷 192, 期 2, 页码 330-335出版社
ELSEVIER
DOI: 10.1016/j.jpowsour.2009.03.011
关键词
Polymer electrolyte membrane fuel cells; Pt nanoparticles; W18O49 nanowires; Oxygen reduction reaction; Catalyst support
资金
- General Motors of Canada
- Natural Sciences and Engineering Research Council of Canada
- Canada Research Chair Program
- Canada Foundation for Innovation
- Ontario Early Researcher Award
- University of Western Ontario
Tungsten oxide nanowires (W18O49 NWs) were directly grown on carbon paper by chemical vapor deposition. Well-dispersed Pt nanoparticles, with a size distribution from 2 to 4 nm, were deposited on the surface of W18O49 NWs through a simple reductive process. The resulting Pt/W18O49 NW/carbon paper composites formed a three-dimensional electrode structure. in comparison to conventional Pt/C electro-catalyst, the Pt/W18O49 NW/carbon paper composite exhibited higher electrocatalytic activity toward the oxygen reduction reaction and better CO tolerance in a single cell polymer electrolyte membrane fuel cell. (C) 2009 Elsevier B.V. All rights reserved.
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