▎ 摘　　要

NOVELTY - Preparing indanthrene functionalized graphene three-dimensional network structure composite material involves dispersing graphite oxide in dimethylformamide, stirring for 1 to 2 hours, and then ultrasonically treating for 2 to 6 hours, dissolving indanthrene in secondary water and stir for 1-2 hours. The sonicated graphite oxide dispersion is added to the indanthrene solution, stirred for 1-2 hours, and then sonicated for 2-6 hours, and transferred the mixed solution to the reaction kettle and react at 160-180 degrees C for 620-720 minutes. The reaction product is immersed in secondary water for multiple times until the solution became colorless and transparent, and freeze-dried to obtain the indanthrene functional graphene three-dimensional network structure composite material. USE - Method for preparing indanthrene functionalized graphene three-dimensional network structure composite material used as a supercapacitor electrode material (claimed). ADVANTAGE - The method enables to prepare indanthrene functionalized graphene three-dimensional network structure that has excellent electrochemical capacitance and rate performance.