▎ 摘　　要

NOVELTY - Surface modification of reduced graphene oxide, involves preparing graphene oxide by modified Hummers' method, ultrasonically dispersing graphene oxide in deionized water to obtain a suspension, heating the suspension, stirring, adding hydrazine hydrate, stirring continuously to obtain a dispersion, filtering the dispersion, washing, collecting a solid powder, dispersing the solid powder in high-purity water, and freeze-drying, adding metal lithium to diethylenetriamine in a diethylenetriamine/metal lithium molar ratio of 1:(8-10), stirring under nitrogen protection to obtain a mixed solution, adding the reduced graphene oxide to the mixed solution, stirring, introducing oxygen to obtain a black suspension solution, washing the black suspension solution to obtain a black solid, dispersing the black solid in deionized water, and freeze-drying. USE - Surface modification of reduced graphene oxide. ADVANTAGE - The method uses diethylenetriamine and metal lithium to efficiently modify the surface of reduced graphene oxide by effectively grafting amino group to the surface of graphene, such that graphene exhibits excellent solubility and dispersibility in water and other organic solvents. The method is simple, economical, and easy for batch production.