▎ 摘　　要

NOVELTY - Preparing graphene-dichalcogen compound heterogeneous composite powder, comprises (i) adding transition metal oxide powder and the graphene powder in a container, adding a solvent, stirring and mixing to obtain flocculent powder, where the surface of the graphene powder has a multi-fold morphology in a microscopic state; (ii) feeding sulfur powder and the flocculent powder into the reaction vessel together in a non-mixing manner; and (iii) heat-treating the material in the reaction vessel to prepare a graphene-dichalcogen compound heterogeneous composite powder under the protection of an inert gas. The method utilizes catalyst includes potassium fluoride and sodium fluoride, preferably, potassium fluoride. The transition metal oxide is molybdenum trioxide and/or tungsten trioxide nanopowder. USE - The method is useful for preparing graphene-dichalcogen compound heterogeneous composite powder. ADVANTAGE - The method is simple, high-efficiency, batch preparation of uniformly dispersed graphene compound heterogeneous composite powder, so that it is widely applied to the field of electrocatalytic hydrogen production and battery energy. The method uses bubble CVD graphene powder with large sheet diameter and surface wrinkle as the growth carrier, compared with the reduction oxidation graphene the bubble graphene powder has high quality and no defect, the novel structure and excellent physical and chemical properties can make the molybdenum disulfide, tungsten disulfides and so on nano material can be uniformly dispersed and anchored on it, and the transition metal sulfide (TMDS) is easier to grow on the upper surface. It avoids complex powder surface pre-treatment and functionalization treatment process.