▎ 摘　　要

NOVELTY - The preparation method of nickel tetrasulfide/molybdenum disulfide/graphene hydrogel composite material involves adding ethylene glycol to graphite oxide aqueous solution, stirring, and ultrasonically vibrating to obtain a homogeneous dispersion, mixing homogeneous dispersion with nickel(II) nitrate hexahydrate and ammonium heptamolybdate tetrahydrate mixed aqueous solution, stirring to form a homogeneous suspension, adding sodium sulfide nonahydrate to suspension, stirring to obtain reaction solution, heating the reaction solution, washing the resulting product, and freeze-drying. USE - Preparation of nickel tetrasulfide/molybdenum disulfide/graphene hydrogel composite material (claimed). ADVANTAGE - The method enables the preparation of nickel tetrasulfide/molybdenum disulfide/graphene hydrogel composite material easily by simple process, without adding binder and surfactant. DETAILED DESCRIPTION - The preparation method of nickel tetrasulfide/molybdenum disulfide/graphene hydrogel composite material involves adding ethylene glycol to graphite oxide aqueous solution, stirring, and ultrasonically vibrating to obtain a homogeneous dispersion, mixing homogeneous dispersion with nickel(II) nitrate hexahydrate and ammonium heptamolybdate tetrahydrate mixed aqueous solution, stirring to form a homogeneous suspension, adding sodium sulfide nonahydrate to suspension, stirring to obtain reaction solution, heating the reaction solution in a sealed reaction kettle, washing the resulting product, and freeze-drying.