▎ 摘　　要

NOVELTY - Preparing non-covalently modified graphene fuel cell catalyst support material comprises: (a) ultrasonically dispersing the graphite oxide to obtain graphene oxide solution; and (b) adding at least one reducing agent in viologen compound into above solution, stirring, filtering and washing. USE - The method is useful for preparing non-covalently modified graphene fuel cell catalyst support material (claimed). ADVANTAGE - The method is simple and suitable for industrial production. The electrocatalyst increases the methanol oxidation and oxygen reduction reaction activity and used in fuel cell. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing viologen non-covalently modified graphene-supported platinum electrocatalyst, comprising ultrasonically dispersing the viologen non-covalently modified graphene material in water, adding chloroplatinic acid and reducing agent, stirring, filtering and washing.