▎ 摘　　要

NOVELTY - The preparation method of molybdenum sulfide/graphene/carbon nanosphere composite material involves (a) adding glucose to water, stirring to obtain glucose solution, hydrothermally reacting, washing, and drying to obtain carbon nanosphere, (b) adding carbon nanosphere into graphene oxide solution, ultrasonically processing to obtain a graphene oxide/carbon nanosphere dispersion, (c) dissolving molybdate and thiourea in dispersion, hydrothermally reacting, washing, drying to obtain molybdenum sulfide/graphene/carbon nanosphere composite material, and (d) heat treating under inert gas. USE - Preparation of molybdenum sulfide/graphene/carbon nanosphere composite material for use as high-performance electrocatalytic material, and electrode material of lithium-ion battery, solar cell and other energy devices (claimed). ADVANTAGE - The method enables the preparation of molybdenum sulfide/graphene/carbon nanosphere composite material having three-dimensional porous structure, and excellent conductivity and chemical stability. DETAILED DESCRIPTION - The preparation method of molybdenum sulfide/graphene/carbon nanosphere composite material involves (a) adding glucose to water, stirring to obtain uniform glucose solution, transferring to a hot water kettle, hydrothermally reacting, washing the precipitated product for several times, and vacuum drying to obtain carbon nanosphere, (b) adding carbon nanosphere into graphene oxide solution, ultrasonically processing to obtain a homogeneous graphene oxide/carbon nanosphere dispersion, (c) dissolving molybdate and thiourea in graphene oxide/carbon nanosphere dispersion, transferring to a hot water kettle, hydrothermally reacting, washing the precipitated product for several times, vacuum drying to obtain molybdenum sulfide/graphene/carbon nanosphere composite material, and (d) heat treating under an inert gas to improve the crystal structure of molybdenum disulfide.