Cycle durability of metal oxide supports for PEFC electrocatalysts

Y. Takabatake, Z. Noda, S. M. Lyth, A. Hayashi, K. Sasaki

研究成果: Contribution to journalArticle査読

58 被引用数 (Scopus)

抄録

In order to develop durable electrocatalysts for polymer electrolyte fuel cells, six different metal oxides, namely MoO3, SnO2, Nb2O5, Ta2O5, TiO2, and WO3, are selected as thermochemically stable, carbon-free platinum electrocatalyst support materials. The stability of Pt on these alternative oxide support materials is systematically analyzed, for the first time, using common experimental protocols simulating realistic fuel cell vehicle operation. Pt/SnO2 shows the best performance in terms of both electrochemical activity, and stability against dissolution. Pt dissolution rates in Pt/SnO 2 are comparable to those of conventional Pt/C electrocatalysts. These results suggest that SnO2 is a promising candidate as an alternative electrocatalyst support.

本文言語英語
ページ(範囲)5074-5082
ページ数9
ジャーナルInternational Journal of Hydrogen Energy
39
10
DOI
出版ステータス出版済み - 3 26 2014

All Science Journal Classification (ASJC) codes

  • 再生可能エネルギー、持続可能性、環境
  • 燃料技術
  • 凝縮系物理学
  • エネルギー工学および電力技術

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