MANUFACTURING METHOD OF TERNARY SYSTEM ELECTRODE CATALYST FOR FUEL CELL, AND SOLID POLYMER FUEL CELL USING THE SAME

摘要

PROBLEM TO BE SOLVED: To aim at reduction of a use volume of expensive platinum, by providing a manufacturing method of electrode catalyst for a fuel cell of high four-electron reduction performance and high activity.

SOLUTION: In the manufacturing method of ternary system electrode catalyst for the fuel cell with catalyst components consisting of platinum, cobalt, and at least another kind of metal M with a melting point lower than that of cobalt carried on a carbon carrier, a composition (atomic ratio) of platinum:cobalt:the metal M in the catalyst components is to be 1:0.11 to 0.19:0.02 to 0.11. The platinum, the cobalt and the metal M are to be alloyed at a temperature higher than the melting point of the metal M and lower than the melting point of cobalt.

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