ANODE-SIDE CATALYST COMPOSITION FOR FUEL CELL AND MEMBRANE ELECTRODE ASSEMBLY (MEA) FOR SOLID POLYMER-TYPE FUEL CELL

To provide a technique capable of improving the deterioration of a fuel cell due to a non-stationary operation (start/stop, fuel shortage) and ensuing a low cost. [0002] An anode-side catalyst composition for fuel cells, comprising a catalyst obtained by supporting a catalyst particle on an electrically conductive material and an ion exchange resin, wherein the catalyst particle is composed of a metal, a metal oxide, a partial metal oxide or a mixture thereof each being lower in both the oxygen reduction ability and the water electrolysis overvoltage than platinum and having a hydrogen oxidation ability.