▎ 摘　　要

NOVELTY - Preparing self-supporting reduced graphene oxide coating involves taking brass sheet as cathode and copper sheet as anode in composite plating solution, adding phosphoric acid to adjust pH value of composite plating solution, applying pulse current between two electrodes, depositing brass sheet on surface to obtain reduced graphene oxide/copper composite material, reducing graphene oxide/copper composite material as anode and graphite electrode as cathode, placing two electrode in polishing liquid, applying constant voltage between two electrodes. USE - Method for preparing self-supporting reduced graphene oxide coating. ADVANTAGE - The method enables to prepare self-supporting reduced graphene oxide coating, which is simple and applied in field of self lubrication coating and has low cost, easy production in large area, low friction coefficient, low abrasion, high bearing capacity and long service life. DETAILED DESCRIPTION - Preparing self-supporting reduced graphene oxide coating involves taking brass sheet as cathode and copper sheet as anode in composite plating solution, adding phosphoric acid to adjust pH value of composite plating solution, applying pulse current between two electrodes, depositing brass sheet on surface to obtain reduced graphene oxide/copper composite material, reducing graphene oxide/copper composite material as anode and graphite electrode as cathode, placing two electrode in polishing liquid, applying constant voltage between two electrodes and dissolving reducing graphene oxide/copper composite material surface copper ingredient partially to obtain self-supporting reduced graphene oxide coating.