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    • 70. 发明公开
    • CARBON SUPPORT CATALYST
    • KOHLENSTOFFTRÄGERKATALYSATOR
    • EP3106219A4
    • 2017-07-05
    • EP15749685
    • 2015-01-06
    • TOYOTA MOTOR CO LTD
    • KANEKO KEIICHITAKEHIRO NAOKITAKEUCHI NORIMITSU
    • B01J23/44B01J35/02H01M4/86H01M4/90H01M4/92
    • H01M4/926C23C18/1637C23C18/168C23C18/1689C23C18/42C23C18/54C25D3/38C25D5/48H01M4/8657H01M4/921
    • The present invention is to provide such a carbon-supported catalyst that an activity expected from a catalytic activity by rotating disk electrode (RDE) evaluation is maintained even after the formation of a membrane electrode assembly (MEA). Disclosed is a carbon-supported catalyst wherein the carbon-supported catalyst includes fine catalyst particles that have a palladium-containing particle and a platinum-containing outermost layer covering at least part of the palladium-containing particle, and a carbon support supporting the fine catalyst particles, and wherein, in a cyclic voltammogram that is obtained by measuring, in an acid solution, the carbon-supported catalyst applied to a measurement electrode made of an electroconductive material, the proportion of the area of a hydrogen adsorption region that appears in a reduction current region to the total area of the hydrogen adsorption region and a hydrogen occlusion region that appears in the reduction current region, is 29% to 36%.
    • 本发明提供这样一种碳载催化剂,其即使在形成膜电极组件(MEA)之后也能保持通过旋转圆盘电极(RDE)评估的催化活性预期的活性。 本发明公开了一种碳负载型催化剂,其中所述碳负载型催化剂包括具有含钯颗粒和覆盖所述含钯颗粒的至少一部分的含铂最外层的催化剂微粒以及负载所述催化剂的碳载体 在通过在酸性溶液中测量施加到由导电材料制成的测量电极上的碳负载催化剂而获得的循环伏安图中,显示出在氢气吸附区域中出现的氢吸附区域的面积的比例 所述氢还原电流区域与所述氢吸附区域和所述还原电流区域中出现的氢闭塞区域的总面积之比为29%至36%。