▎ 摘　　要

NOVELTY - Preparation of polyaminoguanidine-reduced graphene oxide composite electrode material involves dissolving graphene oxide in deionized water to form dispersion liquid, mixing cationic surfactant and deionized water to obtain mixed liquid, adding graphene oxide dispersion in mixed liquid, carrying out reflux reaction to obtain precipitate, centrifuging, washing, freeze-drying to obtain modified graphene oxide, dissolving modified graphene oxide in organic solvent to obtain mixture, dissolving polymerized monomer 1,5-diaminoguanidine in organic solvent to obtain solution, adding oxidizing agent dissolved in organic solvent to mixture, polymerizing, filtering to obtain complex of polyaminofluorene and modified graphene oxide, mixing deionized water, and complex, immersing in aqueous ammonia solution, suction filtering, drying to obtain polyaminoanthene-reduced graphene oxide composite electrode material, immersing the electrode material in sulfuric acid solution, filtering, and drying. USE - Preparation of composite electrode material used in supercapacitor(claimed). ADVANTAGE - The electrode material has specific capacitance of 772 F/g at 1 A/g, rater performance of 68 % or more at 1 A/g, and capacitance retention of 98 % after 50000 cycles, and is high potential electrochemical energy storage material. DETAILED DESCRIPTION - Preparation of polyaminoguanidine-reduced graphene oxide composite electrode material involves dissolving graphene oxide in deionized water to form dispersion liquid having solid-liquid ratio of 1-3:1 g/L, mixing cationic surfactant and the deionized water to obtain mixed liquid in solid-liquid ratio of 2-4:1 g/L, adding graphene oxide dispersion in the mixed liquid slowly, carrying out reflux reaction to obtain precipitate, centrifuging, washing, freeze-drying to obtain modified graphene oxide, dissolving modified graphene oxide in organic solvent for 1-2 hours to obtain mixture, dissolving polymerized monomer 1,5-diaminoguanidine in organic solvent for 0.5-1 hour to obtain solution, dropping the solution into the mixture, adding oxidizing agent dissolved in organic solvent to the mixture, polymerizing for 48-72 hours, suction filtering to obtain complex of polyaminofluorene and modified graphene oxide, mixing deionized water, and 1 g/L complex of polyaminofluorene and modified graphene oxide, ultrasonically dispersing for 1 hour to obtain solution, placing the solution in microwave oven having power of 1000 W for 20-30 seconds to reduce the graphene oxide, immersing in aqueous ammonia solution, suction filtering, drying to obtain polyaminoanthene-reduced graphene oxide composite electrode material, immersing the electrode material in 0.5-3 mol/L sulfuric acid solution for 24 hours, preferably 3-5 hours, suction filtering, washing, and drying. An INDEPENDENT CLAIM is included for use of polyaminoguanidine-reduced graphene oxide composite electrode material in supercapacitor which comprises 4 mg polyaminoguanidine-reduced graphene oxide composite electrode material, 0.7 mg acetylene black, and 0.4 mL 0.25 wt.% Nafion (RTM: sulfonated tetrafluoroethylene based fluoropolymer-copolymer).