▎ 摘　　要

NOVELTY - A graphene sheet structure comprises composite pore structure comprising micropore having diameter of 0.1-10 nm and macropore having diameter of more than 50 nm. USE - Graphene sheet structure used for electrode material of supercapacitor (claimed). ADVANTAGE - The graphene sheet structure has high specific surface area and narrow space so as to provide a device with high specific capacitance value. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation of graphene with composite pore structure, comprising: (A) ultrasonically dispersing graphene oxide and semiconductor oxide or sulfide nanoparticles in solvent, heating and electromagnetically stirring for 24 hours at 50-180 degrees C, so that semiconductor oxide or sulfide nanoparticles are uniformly dispersed on the graphene oxide surface to obtain semiconductor oxide or sulfide nanoparticle graphene oxide composite dispersion liquid; (B) irradiating dispersion liquid with UV light while electromagnetically stirring for 0.5-48 hours; (C) adding excess inorganic acid into the dispersion liquid to dissolve the semiconductor oxide or sulfide nanoparticles, then filtering, washing the filter residue with deionized water and ethanol, taking out filter residue, adjusting pH value of the solution to 10-12 with ammonia water, ultrasonically processing the solution and re-dispersing into water to obtain composite pore structure of graphene oxide dispersion liquid; (D) performing hydrothermal reduction or chemical reduction on the composite pore structured graphene oxide dispersion liquid; and (E) freeze-drying or filtering to obtain graphene dispersion liquid with composite pore structure.