▎ 摘　　要

NOVELTY - Preparing vanadium carbide/graphene nanosheet composite material involves preparing precursor mixture comprising graphene nanosheets, carbon source, ammonium metavanadate, and deionized water, hydrothermal reaction of the precursor mixture to obtain a powder intermediate product. The intermediate product is sufficiently ground and heat-treated at 700-1200 degrees C under an atmosphere to obtain a vanadium carbide/graphene nanosheet composite. USE - Method for preparing vanadium carbide/graphene nanosheet composite material used for hydrocracking hydrogen production (claimed). ADVANTAGE - The method enables to prepare preparing vanadium carbide/graphene nanosheet composite material which greatly improves conductivity of the catalyst, disperses vanadium carbide particles, improving catalytic activity of the VC/GNS, graphene in the structure protects the vanadium carbide particles from being protected from electrolyte corrosion, and used in the field of electrocatalysis, water cracking, full pH, hydrogen-producing electrocatalyst.