Membrane electrode assemblies with hydrogen peroxide decomposition catalyst
    4.
    发明授权
    Membrane electrode assemblies with hydrogen peroxide decomposition catalyst 有权
    膜电极组件用过氧化氢分解催化剂

    公开(公告)号:US07112386B2

    公开(公告)日:2006-09-26

    申请号:US10235074

    申请日:2002-09-04

    IPC分类号: H01M4/90 H01M4/92

    摘要: A membrane electrode assembly includes an anode including a hydrogen oxidation catalyst; a cathode; a membrane disposed between the anode and the cathode; and a peroxide decomposition catalyst positioned in at least one position selected from the group consisting of the anode, the cathode, a layer between the anode and the membrane and a layer between the cathode and the membrane wherein the peroxide decomposition catalyst has selectivity when exposed to hydrogen peroxide toward reactions which form benign products from the hydrogen peroxide. The peroxide decomposition catalyst can also be positioned within the membrane. Also disclosed is a power-generating fuel cell system including such a membrane electrode assembly, and a process for operating such a fuel cell system.

    摘要翻译: 膜电极组件包括:包含氢氧化催化剂的阳极; 阴极 设置在阳极和阴极之间的膜; 以及位于选自阳极,阴极,阳极和膜之间的层以及阴极和膜之间的层中的至少一个位置的过氧化物分解催化剂,其中过氧化物分解催化剂暴露于阴极和膜之间具有选择性 过氧化氢朝向形成来自过氧化氢的良性产物的反应。 过氧化物分解催化剂也可以位于膜内。 还公开了包括这种膜电极组件的发电燃料电池系统和用于操作这种燃料电池系统的方法。