发明授权
US06610436B1 Catalytic coatings and fuel cell electrodes and membrane electrode assemblies made therefrom 有权
催化涂层和由此制成的燃料电池电极和膜电极组件

  • 专利标题: Catalytic coatings and fuel cell electrodes and membrane electrode assemblies made therefrom
  • 专利标题(中): 催化涂层和由此制成的燃料电池电极和膜电极组件
  • 申请号: US09509849
    申请日: 2000-09-18
  • 公开(公告)号: US06610436B1
    公开(公告)日: 2003-08-26
  • 发明人: Geoffrey DearnaleyJames H. Arps
  • 申请人: Geoffrey DearnaleyJames H. Arps
  • 主分类号: H01M490
  • IPC分类号: H01M490
Catalytic coatings and fuel cell electrodes and membrane electrode assemblies made therefrom
摘要:
Fuel cell electrodes comprising a minimal load of catalyst having maximum catalytic activity and a method of forming such fuel cell electrodes. The preferred method comprises vaporizing a catalyst, preferably platinum, in a vacuum to form a catalyst vapor. A catalytically effective amount of the catalyst vapor is deposited onto a carbon catalyst support on the fuel cell electrode. The electrode preferably is carbon cloth. The method reduces the amount of catalyst needed of a high performance fuel cell electrode to about 0.3 mg/cm2 or less, preferably to about 0.1 mg/cm2. The electrocatalytic layer formed comprises unique, rod-like structures.
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