| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1287887 | Journal of Power Sources | 2006 | 5 Pages |
Abstract
Tin oxide supported platinum catalysts (Pt/SnOx) for use in polymer electrolyte fuel cells were prepared, and their electrochemical oxidation of CO was investigated. From the XPS measurements of Pt/SnOx catalysts, it was found that the binding energy of Pt showed no change compared to bulk Pt, regardless of tin oxide addition. In accordance with this result, CO-stripping voltammograms for Pt/SnOx catalysts revealed that the peak potential for the pre-adsorbed CO oxidation was almost the same value of Pt/C catalyst. However, the onset potential of CO oxidation shifted negatively compared to PtRu/C catalyst, indicating an enhancement of CO tolerance of Pt/SnOx catalysts.
Related Topics
Physical Sciences and Engineering
Chemistry
Electrochemistry
Authors
Toshiaki Matsui, Katsuhiko Fujiwara, Takeoh Okanishi, Ryuji Kikuchi, Tatsuya Takeguchi, Koichi Eguchi,