▎ 摘　　要

NOVELTY - Preparing graphene-doped cobalt-based metal organic framework composite materials involves mixing cobalt-containing compound, surfactant, graphene oxide and solvent uniformly to form the first solution. The imidazole compound, pyridine compound or terephthalic acid compound are mixed with the solvent to form second solution. The first solution and second solution are mixed and reacted, matured, dried, and then calcined to obtain graphene-doped cobalt-based metal organic framework composite materials. USE - Method for preparing graphene-doped cobalt-based metal organic framework composite materials used in field of electrocatalytic oxygen production or supercapacitor preparation (claimed). ADVANTAGE - The method enables to prepare graphene-doped cobalt-based metal organic framework composite materials that has short reaction time, efficient and simple preparation method and good electrocatalytic performance.