发明申请
US20140193739A1 OXYGEN REDUCTION CATALYST, METHOD FOR PRODUCING THE SAME, AND POLYMER ELECTROLYTE FUEL CELL
审中-公开
氧还原催化剂，其生产方法和聚合物电解质燃料电池
- 专利标题： OXYGEN REDUCTION CATALYST, METHOD FOR PRODUCING THE SAME, AND POLYMER ELECTROLYTE FUEL CELL
- 专利标题（中）： 氧还原催化剂，其生产方法和聚合物电解质燃料电池
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申请号： US14232409申请日： 2012-04-13
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公开(公告)号： US20140193739A1公开(公告)日： 2014-07-10
- 发明人: Akira Takahashi , Takuya Imai , Ryuji Monden , Yasuaki Wakizaka , Takashi Sato
- 申请人： Akira Takahashi , Takuya Imai , Ryuji Monden , Yasuaki Wakizaka , Takashi Sato
- 申请人地址： JP Minato-ku, Tokyo
- 专利权人： SHOWA DENKO K.K.
- 当前专利权人： SHOWA DENKO K.K.
- 当前专利权人地址： JP Minato-ku, Tokyo
- 优先权： JP2011-155853 20110714
- 国际申请： PCT/JP2012/060170 WO 20120413
- 主分类号： H01M4/86
- IPC分类号： H01M4/86 ; H01M8/10 ; H01M4/90
摘要：
It is an object of the present invention to provide an oxygen reducing catalyst having high catalytic activity and high durability using a transition metal (such as titanium); and a method for producing a fuel cell electrode catalyst using the oxygen reducing catalyst. The present invention provides the oxygen reduction catalyst including titanium, carbon, nitrogen, and oxygen as constituent elements at a specific ratio, wherein in XRD measurement using a Cu—Kα ray, peaks are each present in at least regions A and B among regions A to D which occupy 2θ ranges of 42° to 43°, B: 36.5° to 37°, 25° to 26°, and 27° to 28°, respectively; and each of maximum peak intensities IA, IB, IC, and ID in the regions A to D satisfies both relationships of IA>IB and 0.3≦(IA/(IA+IC+ID))≦1.
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