▎ 摘　　要

NOVELTY - Preparing high-entropy alloy sulfide/two-dimensional nano-composite material, comprises (1) dissolving zinc acetate, copper acetate, ferric acetate, nickel acetate and cadmium acetate in organic solvent, adding sulfide and two-dimensional nanoparticles to react, dispersing and mixing uniformly to obtain mixed solution; and (2) heating the mixed solution to 140-220℃ for reaction, cooling to room temperature after heat preservation, centrifuging at room temperature, washing and drying centrifuged product to obtain high-entropy alloy sulfide/two-dimensional nanocomposite material, where the addition amount of the zinc acetate, copper acetate, ferric acetate, nickel acetate and cadmium acetate is equimolar ratio or about equimolar ratio, the sulfide is thiourea, aminothiourea and/or thioacetamide, and the two-dimensional nanoparticle is titanium carbide (MXene), graphitic carbon nitride, graphene and oxides. USE - The material is useful in preparing electromagnetic wave shielding materials, new energy electrode materials and electrocatalytic materials (claimed). ADVANTAGE - The material has more effective electromagnetic wave absorbing ability and stability, increases the better shielding electromagnetic wave capability than the single metal sulfide, has oxidation resistance, high temperature resistance, and wear resistance and stability.