▎ 摘　　要

NOVELTY - Use of manganese oxide/graphene catalyst for air electrodes, is claimed. USE - Manganese oxide/graphene catalyst for an air electrode that is utilized for fuel cell or metal-air battery. ADVANTAGE - The manganese oxide/graphene catalyst has good catalyzing performance, and can reduce the oxygen reduction reaction of the electric potential and increase the reaction current. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a method for preparing manganese oxide/graphene catalyst, which involves preparing graphene film by taking 0.5-2 mg/l of graphene colloid solution, placing the working electrode in solution under nitrogen atmosphere and drying to obtain graphene film at room temperature, preparing manganese oxide catalyst by taking 4 mg/l manganese oxide colloid solution, treating in nitrogen atmosphere and drying to obtain manganese oxide catalyst at room temperature.