▎ 摘　　要

NOVELTY - Preparing foamed nickel-supported graphene composite layered heterostructure catalyst comprises adding ammonium tetrathiomolybdate to graphene oxide suspension, adding foamed foamed copper, reacting, separating and purifying to obtain molybdenum disulfide/nickel sulfide/graphene-nitrogen-nitride. USE - The method for preparing the graphene composite layered heterogeneous structure catalyst loaded by foam nickel used in preparing hydrogen by electrolyzing water (claimed). ADVANTAGE - The method has simple process flow, simple operation, low consumption cost, easy large-scale production, and has good application prospect in the industrial electrolytic water hydrogen production. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for graphene composite layered heterostructure catalyst, obtained by the method as mentioned above.