| abstract |
The present invention provides a catalyst structure in which a catalyst material is supported on a carrier by a novel method that has not been attempted before, and a membrane electrode assembly for a polymer electrolyte fuel cell using the catalyst structure. SOLUTION: A catalyst structure obtained by coating a catalyst surface with a catalyst material by a gas flow sputtering method, a solid polymer electrolyte membrane, a catalyst layer disposed on both sides of the solid polymer electrolyte membrane, and the catalyst layer A membrane electrode assembly for a polymer electrolyte fuel cell comprising a diffusion layer disposed on both sides of the membrane, wherein the catalyst structure is used for the catalyst layer. Is the body. [Selection] Figure 1 |