FUEL CELL CATALYST COMPOSITION AND FUEL CELL CONTAINING SAME

Provided is a fuel cell catalyst composition comprising a C12A7:X inorganic material having a structure in which oxygen anions of C12A7 are replaced by halogen (X) anions, or comprising a C12A7:X -based inorganic material which is a C12A7:X partially converted to electride. A fuel cell comprising the fuel cell catalyst composition in a catalyst layer is also provided. Also provided is a method of producing a fuel cell catalyst composition, comprising a step of heat-treating C12A7:X at temperature of 1000-1300°C for at least 20 hours under a nitrogen atmosphere.