▎ 摘　　要

NOVELTY - Graphene nanosheet/conductive polymer composite nanomaterial is prepared by dispersing chemical oxidized graphite oxide into water to obtain graphene oxide nanosuspension liquid, adding sodium borohydride and partially reducing graphene oxide; adding o-aminobenzene sulfonic acid into reduced graphene oxide to obtain o-aminobenzene sulfonated graphene nanosuspension; and spin coating suspension on a conductive substrate surface to form graphene film as working electrode and performing cyclic volt-ampere technology for electrochemical deposition of conductive polymer on graphene film surface. USE - Method of preparing graphene nanosheet/conductive polymer composite nanomaterial (claimed). ADVANTAGE - The method is simple and easy to operate, and has low reaction temperature with short reaction time and good chemical homogeneity. DETAILED DESCRIPTION - Preparation of graphene nanosheet/conductive polymer composite nanomaterial comprises: (A) ultrasonically dispersing chemical oxidized graphite oxide into water to obtain graphene oxide nanosuspension liquid, adjusting pH value of suspension liquid to 10 using sodium hydroxide, then adding sodium borohydride to the suspension and partially reducing the graphene oxide at 80-90 degrees C for 2 hours, vacuum filtering, and washing the reduced graphene oxide; (B) dispersing reduced graphene oxide in deionized water, adding o-aminobenzene sulfonic acid and stirring at 0-5 degrees C for 4-5 hours, making the o-aminobenzene sulfonic acid to fully absorb a portion of the reduced graphene oxide nanosheet; (C) adding hydrazine hydrate into the resulting product at 95-98 degrees C and stirring for 12 hours, washing resulting product with anhydrous ethanol and with deionized water for several times, then performing suction filtration and vacuum-drying; (D) dispersing the resulting product in deionized water to obtain 5 mg/mL of o-aminobenzene sulfonated graphene nanosuspension; and (E) using spin coating to uniformly coat the suspension on a conductive substrate surface to form graphene film to obtain working electrode, putting the working electrode, a conductive electrode and a reference electrode in water dispersion liquid containing conductive polymer, and performing cyclic volt-ampere technology for monomer polymerization by electrochemical deposition on the graphene film surface.