▎ 摘　　要

NOVELTY - Preparation for reducing graphene oxide-based composite film, involves (1) preparing a graphene oxide alkenyl mixture, in addition to graphene oxide, the mixed solution comprises one or more of polymers, organic nanomaterials, inorganic nanomaterials, metal nanomaterial and a precursor for preparing an inorganic or metallic nanomaterial, (2) preparing graphene oxide-based composite film by carrying vacuum suction filtration, spin coating, drop coating, knife coating or coating to graphene oxide alkenyl mixture obtained in step (1), and (3) placing the graphene oxide-based composite film obtained in the step (2) in a reaction vessel, and adding a liquid to the reaction vessel to be sealed, and carrying out the hydrothermal reaction or the solvothermal reaction at a certain temperature for a certain period of time. USE - Preparation of reduced graphene oxide-based composite film. ADVANTAGE - The reduced graphene oxide-based composite film has a higher degree of reduction of graphene and a more complete crystal structure. The reduced graphene oxide-based composite membrane has excellent stability, adjustable thickness and crispness, and thermal conductivity. The conductance and catalytic performance of the composite film is adjusted.