| 摘要 |
Provided is a membrane electrode assembly for a fuel cell which comprises a polymer electrolyte 13 and a catalyst layer 16, wherein the catalyst layer 16 comprises a wire-shaped catalyst 12. Also provided is a method of producing a membrane electrode assembly for a fuel cell comprising a polymer electrolyte and a catalyst layer comprising a wire-shaped catalyst, which comprises the step of producing a wire-shaped catalyst by means of vapor phase growth or liquid phase growth. With such a constitution, the gas permeability can be increased and the power generation efficiency can be improved.
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