OXYGEN REDUCTION CATALYST, METHOD FOR PRODUCING THE SAME, AND POLYMER ELECTROLYTE FUEL CELL
    2.
    发明公开
    OXYGEN REDUCTION CATALYST, METHOD FOR PRODUCING THE SAME, AND POLYMER ELECTROLYTE FUEL CELL 审中-公开
    氧还原催化剂,其制备方法和聚合物电解质燃料电池

    公开(公告)号:EP3300150A1

    公开(公告)日:2018-03-28

    申请号:EP17194888.8

    申请日:2012-04-13

    申请人: Showa Denko K.K.

    IPC分类号: H01M4/90 H01M8/1018 H01M4/86

    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 I A , I B , I C , and I D in the regions A to D satisfies both relationships of I A >I B and 0.3≤(I A / (I A +I C +I D )) ≤1.

    摘要翻译: 本发明的目的是提供使用过渡金属(例如钛)具有高催化活性和高耐久性的氧还原催化剂; 以及使用该氧还原催化剂制造燃料电池用电极催化剂的方法。 本发明提供以特定比例包含钛,碳,氮和氧作为组成元素的氧还原催化剂,其中在使用Cu-Kα射线的XRD测量中,峰分别存在于区域A中的至少区域A和B中 至D,其分别占据42°至43°,B:36.5°至37°,25°至26°和27°至28°的2θ范围; 并且区域A至D中的最大峰值强度IA,IB,IC和ID中的每一个满足IA> IB和0.3≤(IA /(IA + IC + ID))≤1的关系。