Electrocatalyst layer production method, electrode catalyst layer, membrane electrode assembly, and polymer electrolyte fuel cell

摘要

Provided are an electrode catalyst layer production method, an electrode catalyst layer, a membrane electrode assembly, and a polymer electrolyte fuel cell that exhibit high power generation characteristics using an oxide-based non-platinum catalyst as a catalyst material. A process for producing a catalyst material having conductivity on a surface of an electrode catalyst layer in a fuel cell in which a polymer electrolyte membrane sandwiched between a pair of electrode catalyst layers is sandwiched between a pair of gas diffusion layers. The problem can be solved by a method for producing an electrode catalyst layer for a polymer electrolyte fuel cell, comprising: [Selection figure] None