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    • 1. 发明授权
    • Gas diffusion electrode with a hydrophilic covering layer, and process
for its production
    • 具有亲水性覆盖层的气体扩散电极及其制造方法
    • US4563261A
    • 1986-01-07
    • US648014
    • 1984-09-06
    • Rudolf StaabJurgen Russow
    • Rudolf StaabJurgen Russow
    • C25B11/03C25B11/00C25B11/02C25B11/06H01M4/86
    • H01M4/86C25B11/035
    • A gas diffusion electrode for the reduction of oxygen, which contains a hydrophobic electro-catalyst layer, is described. One side of this layer is covered with a hydrophilic layer which is composed of at least one transition metal or an oxide or mixed oxide of transition metals and can also contain a current collector in the form of a mesh. For producing the gas diffusion electrode, a hydrophobic electro-catalyst layer can first be prepared from a pulverulent mixture which contains the electro-catalyst and a hydrophobic polymer, and at least one transition metal or an oxide or mixed oxide of transition metals can be applied in a finely divided form to one side of this layer and bonded to the hydrophobic electro-catalyst layer by the application of pressure.
    • 描述了一种用于还原氧的气体扩散电极,其包含疏水电催化剂层。 该层的一侧覆盖有由至少一种过渡金属或过渡金属的氧化物或混合氧化物构成的亲水层,并且还可以含有网状形式的集电体。 为了制造气体扩散电极,可以首先从含有电催化剂和疏水性聚合物的粉末混合物制备疏水电催化剂层,并且可以应用至少一种过渡金属或过渡金属的氧化物或混合氧化物 以细碎的形式与该层的一侧接合并通过施加压力而与疏水电催化剂层结合。