| abstract |
(57) [Summary] [PROBLEMS] To manufacture a high-performance fuel cell that enables easy and accurate evaluation of fuel cell performance. SOLUTION: Platinum as one of the noble metals and iron as one of the base metals are supported on carbon having a large specific surface area, and iron is reduced at a temperature at which iron can be reduced. The platinum iron alloy-based electrode catalyst thus obtained has a high function as a catalyst, and a fuel cell manufactured using the same has a high IR correction voltage. Such an electrode catalyst is a novel catalyst having a carbon monoxide adsorption amount of 14 Nc / gram of platinum. c or more, and the ratio of the number of Pt atoms to Fe atoms by EDX analysis is 0.14 or more, or the ratio of the number of bonds of both atoms by EXAFS analysis is 0.10 or more. is there. The electrode catalyst can be evaluated based on such numerical values, and if a fuel cell is manufactured using the evaluation result, a fuel cell having high performance can be manufactured. |