▎ 摘　　要

NOVELTY - Graphene hollow nanospheres having a diameter of 3-10 nm and a thickness of shell layer of 1-4 layers. USE - As graphene hollow nanospheres. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing the graphene hollow nanospheres, which involves (i) uniformly mixing carbon precursor, surfactant, graphitization catalyst and deionized water, and adding to a high pressure reactor, (ii) tightly sealing the high pressure reactor of step (i), placing in an oven, and increasing the temperature for reacting, (iii) after the reaction is completed, cooling, collecting and drying the solid product, placing the dried product in a microwave oven and calcining at a high temperature in an air atmosphere to foam and decompose the surfactant, and partially carbonizing the carbon precursor, (iv) calcining the microwave heated product at a high temperature in an inert atmosphere or vacuuming to further carbonize and graphitize, and (v) soaking in hydrochloric acid to remove the graphitization catalyst and washing impurities.