▎ 摘　　要

NOVELTY - Preparing a three-dimensional graphene/metal precursor/metal-organic frameworks (MOF) composite material comprises (i) adding urea and three-dimensional graphene to a metal salt solution, heating the reaction under a closed condition to obtain a three-dimensional graphene/metal precursor, where the metal ion contained in the metal salt solution is nickel (II) ion, cobalt (II) ion, zinc ion, and cupric ion, and (ii) adding the resultnant to a terephthalic acid solution, and heating the reaction under a closed condition. USE - The composite material is useful in the field of electrocatalysis (claimed). ADVANTAGE - The composite material: has multiple metals with controllable performance and morphology; high active sites, conductivity, flexibility and specific surface area of two-dimensional nanosheets and improves the performance. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for three-dimensional graphene/metal precursor/metal-organic frameworks composite material prepared by the above mentioned method.