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METAL OXYNITRIDE ELECTRODE CATALYST

外国特許コード F110004303
整理番号 A151-12WO
掲載日 2011年7月13日
出願国 カナダ
出願番号 2547524
公報番号 2547524
公報番号 2547524
出願日 平成16年11月30日(2004.11.30)
公報発行日 平成17年6月16日(2005.6.16)
公報発行日 平成24年5月1日(2012.5.1)
優先権データ
  • 特願2003-403653 (2003.12.2) JP
発明の名称 (英語) METAL OXYNITRIDE ELECTRODE CATALYST
発明の概要(英語)

[Problems] Carbides and many other non-platinum-based compounds are activated and dissolved and cannot be stably present in an acidic electrolyte under conditions of an electrode potential as high as 0.4 V or above, and thus, the application range of these compounds as an electrode catalyst is limited to low electrode potentials. There has been need for development of an electrode catalyst that maintains catalytic activity under these conditions and exhibits improved stability. [Means for Solving Problems] To provide a metal oxynitride electrode catalyst composed of an oxynitride containing at least one transition metal element selected from the group consisting of La, Ta, Nb, Ti, and Zr, the metal oxynitride electrode catalyst being used at a potential of 0.4 V or higher relative to the reversible hydrogen electrode potential in an acidic electrolyte.

The metal oxynitride electrode catalyst is useful as an electrode catalyst for electrochemical systems used in acidic electrolytes in the fields of water electrolysis, organic electrolysis, fuel cells, etc.

  • 出願人(英語)
  • JAPAN SCIENCE AND TECHNOLOGY AGENCY
  • 発明者(英語)
  • KAMIYA, NOBUYUKI,
  • MITSUSHIMA, SHIGENORI,
  • ISHIHARA, AKIMITSU,
  • OTA, KENICHIRO,
  • DOUMEN, KAZUNARI,
  • HARA, MICHIKAZU
国際特許分類(IPC)
参考情報 (研究プロジェクト等) CREST Research and Development of System Technologies for Resource Recycling and Minimum Energy Requirement AREA
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