▎ 摘　　要

NOVELTY - A sulfur-supported molybdenum oxide/graphene hollow structure electrode material preparing method involves dissolving ammonium tetramolybdate tetrahydrate in distilled water, stirring uniformly, and adding nitric acid to the ammonium tetramolybdate solution and transferring to a reaction vessel with a PTFE lined reactor, after washing the precipitate with deionized water and ethanol, and drying. The molybdenum trioxide nanorods are dissolved in ethanol, and (3-aminopropyl)triethoxysilane is added to carry out reflux reaction, and dried. The graphene powder is added to the ethanol, and the (3-aminopropyl)triethoxysilane surface-modified molybdenum trioxide is dispersed in the graphene dispersion-A, stirred. A thiourea is added to the molybdenum trioxide/graphene oxide composite product, and the molybdenum dioxide/graphene oxide composite product is mixed with sublimed sulfur, and heat-treated in an argon atmosphere to obtain sulfur-molybdenum dioxide/graphene oxide composite material. USE - Method for preparing a sulfur-supported molybdenum oxide/graphene hollow structure electrode material. ADVANTAGE - The method enables preparing a sulfur-supported molybdenum oxide/graphene hollow structure electrode material with ensured specific energy of the lithium-sulfur battery and improved electrochemical performance of the battery, and can prevents the shuttle effect. DETAILED DESCRIPTION - A sulfur-supported molybdenum oxide/graphene hollow structure electrode material preparing method involves dissolving ammonium tetramolybdate tetrahydrate in distilled water, stirring uniformly to obtain a tetrahydrate molybdic acid solution, and adding concentrated nitric acid to the ammonium tetramolybdate solution and transferring to a reaction vessel with a PTFE lined reactor for hydrothermal treatment, after the reaction is completed, and is naturally cooled to room temperature to obtain a precipitate, washing the precipitate by centrifugation with deionized water and ethanol, and drying to obtain a molybdenum trioxide nanorod. The molybdenum trioxide nanorods are dissolved in ethanol, and (3-aminopropyl)triethoxysilane is added to carry out condensation and reflux reaction, and the obtained product is successively washed with ethanol and deionized water, and dried to obtain a (3-aminopropyl)triethoxysilane surface-modified molybdenum trioxide. The graphene powder is added to the ethanol, ultrasonically dispersed to obtain a uniform graphene dispersion-A, and the (3-aminopropyl)triethoxysilane surface-modified molybdenum trioxide is dispersed in the graphene dispersion A, and mechanically stirred for 24 hours to obtain a molybdenum trioxide/graphene oxide composite product. A thiourea is added to the molybdenum trioxide/graphene oxide composite product, and transferred to a reaction vessel with a PTFE liner for hydrothermal treatment to obtain a molybdenum dioxide/graphene oxide composite product. The molybdenum dioxide/graphene oxide composite product is mixed with the sublimed sulfur and laid on the bottom of the reactor with the PTFE liner, and heat-treated in an argon atmosphere to obtain sulfur-molybdenum dioxide/graphene oxide composite material.