▎ 摘　　要

NOVELTY - A graphene/clatharate composite material comprises graphene/cobalt-germanium-selenium component. USE - Graphene/clatharate composite material. DETAILED DESCRIPTION - A graphene/clatharate composite material comprises graphene/cobalt-germanium-selenium (CoGexSe(3-x)) component, where x is 1.0-2.0, the amount of graphene is 0-20 wt.%. An INDEPENDENT CLAIM is also included for a method for preparing graphene/clatharate composite material, which involves taking cobalt, germanium and selenium as raw material, mixing the raw materials and sealing in a quartz rube to carry out quenching treatment at 500-800 degrees C for 1-5 days to prepare cobalt-germanium-selenium (CoGexSe(3-x)) component, grinding a graphene to obtain powder, placing the powder into sealed quartz tube, followed by carrying out heat treatment at 500-600 degrees C for 1-3 hours to obtain graphene/cobalt-germanium-selenium (CoGexSe(3-x)) composite material.