▎ 摘　　要

NOVELTY - The method involves dissolving nickel nitrate hexahydrate and hexa(4-carboxyphenoxyl)cyclotriphosphazene in a first organic solvent, uniformly mixing at room temperature to obtain a solution (A), ultrasonically dispersing graphene oxide in a second organic solvent to obtain solution (B), adding solution (B) to the solution (A) and stirring and refluxing at 160-170?oC, centrifuging the mixed solution (C), washing and drying to obtain precursor, calcining the selenium powder at 450-550?oC in a protective atmosphere to obtain the final product. The weight ratio of nickel nitrate hexahydrate and hexa (4-carboxyl-phenoxyl) cyclotriphosphazene is 133:146. The first organic solvent comprises N,N-dimethyl formamide and dimethyl sulfoxide, and the second organic solvent is N,N-dimethyl formamide and dimethyl sulfoxide USE - Preparation method of nickel-based metal organic framework-derived nickel diselenide/reduction graphene oxide composite material used in super capacitor or energy storage application (all claimed). ADVANTAGE - The method provides nickel-based metal organic framework-derived nickel selenide/reduction graphene oxide composite material with nano-particle structure, large specific surface area, which can effectively improve the transmission rate of the ion, improves the specific capacitance, and solves the problem that the nickel-containing electrode has bad conductivity and poor cycle performance.