▎ 摘　　要

NOVELTY - Preparing Ni3S2/NiS/MoS2/rGO supercapacitor electrode material comprises (i) adding ammonium heptamolybdate tetrahydrate, thiourea and nickel acetate tetrahydrate to graphene oxide (GO) dispersion, homogeneous precursor solution is formed by magnetic stirring, (ii) transferring the prepared precursor solution to polytetrafluoroethylene lining and seal it in a stainless steel reactor, immerse the pretreated nickel foam in it, heat the reaction kettle to 150°C for 18 hours, and naturally cooling to room temperature after the first step reaction is completed, (iii) adding ammonium heptamolybdate tetrahydrate, and thiourea to the reaction solution in step (ii), and conduct the second hydrothermal reaction at 70-190°C for 6-18 hours, and (iv) washing obtained product with ethanol and deionized water, and drying in vacuum oven at 70°C for 12 hours. USE - The method is useful for preparing Ni3S2/NiS/MoS2/rGO supercapacitor electrode material used as supercapacitor electrode material (claimed). ADVANTAGE - The method: has mild preparation conditions; is environmentally friendly; uses in-situ growth method, i.e. active material is directly grown on the carrier foam nickel, which is more simple and efficient; foam nickel not only provides nickel3S2 nickel source, but also serves as the reduction of agent oxide; multi-component sulfuric acid enriches the redox reaction and improves the capacitance performance. The electrode material: has excellent performance, excellent electrochemical performance, good multiplying power performance and cycle stability under the 10A/g current density; specific capacitance can 1846.6 F/g under the 11 A/G, after 5000 times of charging and discharging test, and the capacity retention rate is 90.1%.