▎ 摘　　要

NOVELTY - Synthesis of composite material involves (1) mixing graphene oxide dispersion with deionized water, ultrasonically processing, obtaining solution (A), taking ferric chloride hexahydrate and adding to the solution (A), magnetically stirring until uniform, obtaining solution (B), dissolving fumaric acid in deionized water, adding to the solution (B), obtaining solution (C), magnetically stirring until uniform, (2) performing hydrothermal reaction of the solution (C), separating the solid, washing the solid and drying to obtain orange powder, (3) dispersing the orange powder in anhydrous ethanol, magnetically stirring to obtain solution (D), (4) dissolving cobalt nitrate hexahydrate, nickel nitrate hexahydrate and urea in deionized water and magnetically stirring until uniform, obtaining solution (E), transferring the solution (D) to the solution (E) to obtain solution (F), (5) solvothermally reacting the solution (F), washing the solid and drying. USE - Synthesis of composite material for supercapacitor positive electrode (claimed). ADVANTAGE - The method produces composite material with high specific capacitance, multiplying power performance, electrochemical performance and cycle stability. DETAILED DESCRIPTION - Synthesis of composite material involves (1) mixing graphene oxide dispersion with deionized water, ultrasonically processing and magnetically stirring until the dispersion was uniform, obtaining solution (A), taking ferric chloride hexahydrate and adding to the solution (A), magnetically stirring until uniform, obtaining solution (B), dissolving fumaric acid in deionized water, magnetically stirring until uniform, adding to the solution (B), obtaining solution (C), magnetically stirring until uniform, (2) performing hydrothermal reaction of the solution (C), separating the solid by centrifugation, washing the solid and drying to obtain orange powder, (3) dispersing the orange powder in anhydrous ethanol, magnetically stirring to obtain solution (D), (4) dissolving cobalt nitrate hexahydrate, nickel nitrate hexahydrate and urea in deionized water and magnetically stirring until uniform, obtaining solution (E), transferring the solution (D) to the solution (E), magnetically stirring to obtain solution (F), (5) solvothermally reacting the solution (F), separating the solid by centrifugation, washing the solid and drying.