▎ 摘　　要

NOVELTY - Preparing graphene/metallocene composite supercapacitor electrode material involves forming isocyanate-terminated graphene oxide, dispersing graphene oxide in anhydrous N,N-dimethylformamide, performing ultrasonic dispersion, adding diisocyanate under stirring, blowing in nitrogen, and reacting under protection of nitrogen. The suction filtration, washing, filtration, and drying are performed to obtain isocyanate-terminated graphene oxide. The isocyanate-terminated graphene oxide is dispersed ultrasonically in anhydrous N,N-dimethylformamide. The metallocene derivative is added, nitrogen is introduced. The reaction is performed under the protection of nitrogen. The suction filtration, washing, filtration, and drying are performed to obtain graphene/metallocene composite supercapacitor electrode material. USE - Method for preparing graphene/metallocene composite supercapacitor electrode material is used in capacitor (claimed). ADVANTAGE - The method enables to prepare graphene/metallocene composite supercapacitor electrode material that has simple operation, mild reaction conditions, low cost, and material specific capacitance as high as 481.3Fg-1.