▎ 摘　　要

NOVELTY - A palladium-cobalt silicide-graphene composite electric catalyst, is new, where the cobalt silicide is supported on graphene, the noble metal nanoparticles palladium microwave is restored to the cobalt silicide supported graphene, the graphene is utilized as a carrier, cobalt silicide is utilized as an auxiliary catalyst and palladium is utilized as an active component. USE - Palladium-cobalt silicide (Pd-CoSi2)-graphene composite electric catalyst for use in fuel cell (claimed). ADVANTAGE - The catalyst has increased catalytic activity and stability due to the addition of mutual synergistic effect of cobalt silicide and palladium, controllable active particle size, excellent catalysis-assisting property, large specific surface area, favorable structural stability, carbon monoxide poison resistance, and improved utilization ratio and catalytic performance, and can be prepared in cost-effective manner. DETAILED DESCRIPTION - A palladium-cobalt silicide (Pd-CoSi2)-graphene composite electric catalyst, is new, where the cobalt silicide is supported on graphene, the noble metal nanoparticles palladium microwave is restored to the cobalt silicide supported graphene, the graphene is utilized as a carrier, cobalt silicide is utilized as auxiliary catalyst and palladium is utilized as active component. An INDEPENDENT CLAIM is also included for a method for the preparation of the palladium-cobalt silicide (Pd-CoSi2)-graphene composite electric catalyst.