METHOD FOR PRODUCING ELECTRODE CATALYST FOR FUEL CELLS

摘要

[Problem] To provide a method for producing a platinum alloy-containing, highly active electrode catalyst for fuel cells, which is suitable for industrial mass production. [Solution] A method for producing an electrode catalyst for fuel cells, which comprises: a step for preparing a dispersion liquid that is obtained by dispersing particles of a platinum alloy-containing electrode catalyst precursor for fuel cells in an electrolyte solution; and a step for alternately subjecting the dispersion liquid to bubbling of an oxidizing gas and to bubbling of an inert gas or a reducing gas.