CATALYST FOR FUEL CELLS
    4.
    发明申请
    CATALYST FOR FUEL CELLS 审中-公开
    燃料电池催化剂

    公开(公告)号:US20130330650A1

    公开(公告)日:2013-12-12

    申请号:US13984089

    申请日:2012-01-27

    IPC分类号: H01M4/92

    摘要: A catalyst layer including: (i) a first catalytic material, wherein the first catalytic material facilitates a hydrogen oxidation reaction suitably selected from platinum group metals, gold, silver, base metals or an oxide thereof; and (ii) a second catalytic material, wherein the second catalytic material facilitates an oxygen evolution reaction, wherein the second catalytic material includes iridium or iridium oxide and one or more metals M or an oxide thereof, wherein M is selected from the group consisting of transition metals and Sn, wherein the transition metal is preferably selected from the group IVB, VB and VIB; and the first catalytic material is supported on the second catalytic material. The catalyst can be used in fuel cells, supported on electrodes or polymeric membranes for increasing tolerance to cell voltage reversal.

    摘要翻译: 1.一种催化剂层,包括:(i)第一催化材料,其中所述第一催化材料促进适当选自铂族金属,金,银,贱金属或其氧化物的氢氧化反应; 和(ii)第二催化材料,其中所述第二催化材料促进析氧反应,其中所述第二催化材料包括铱或氧化铱和一种或多种金属M或其氧化物,其中M选自 过渡金属和Sn,其中过渡金属优选选自IVB,VB和VIB族; 并且第一催化材料负载在第二催化材料上。 催化剂可用于燃料电池,负载在电极或聚合物膜上,以增加电池电压反转的耐受性。