▎ 摘　　要

NOVELTY - Nanoparticle graphene composite catalytic material comprises nanoparticles composed of polymetallic sulfide clusters below 10 nanometers. The components of nanoparticles are transition metals, main group metals and sulfur elements, which are uniformly assembled into nanoparticles in a certain proportion according to the stoichiometric ratio. USE - The nanoparticle graphene composite catalytic material is used in photoelectric catalysis and flexible batteries (claimed). ADVANTAGE - The method: is simple, and easy to operate and highly repeatable, with mild preparation conditions; has high utilization rate of raw materials, stable target product structure, small particle size, uniform arrangement, concentrated particle size distribution, and various and adjustable particle surface elements; and has good application value in electrochemical catalysis and other aspects. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a method for preparing nanoparticle graphene composite catalytic material comprising dissolving the sulfide crystalline material containing isolated cluster structure into piperidine, fully stirring to obtain stable dispersion system, allowing to stand for 10 hours, after layering by gravity action, transferring the upper layer liquid after layering to vessel, adding two-dimensional graphene for hybridization, stirring for 6-10 hours to obtain the black suspension, centrifuging the black suspension liquid, drying to obtain nano-particle hybrid material graphene surface load based on metal sulfide cluster. DESCRIPTION OF DRAWING(S) - The drawing shows a flow chart of a method for preparing nanoparticle graphene composite catalytic material (Drawing includes non-English language text).