▎ 摘　　要

NOVELTY - Preparing hollow graphene microsphere/tablet mixed body capable of storing gas comprises (i) using improved Hummers method to prepare graphene oxide dispersion liquid; (ii) using a micro-nano bubble generator to disperse the micro nano bubbles into the dispersion liquid until the volume is stable; (iii) taking dispersion in reaction kettle to carry out hydrothermal reaction in a reaction kettle, taking out and filtering and washing; and (iv) drying the reactant in the oven at 50-80?? C to 4-10 hours, placing in the refrigerator to freeze overnight, and fully freezing and drying by using freeze drier. USE - The method is useful for preparing hollow graphene microsphere/tablet mixed body capable of storing gas including battery or super capacitor assembly, drug delivery/release, energy storage hydrogen storage. ADVANTAGE - The method enables to prepare hollow graphene microsphere/tablet mixed body that is capable of storing gas, which does not introduce spherical particle template, and is easy to cluster phenomenon in the dispersion liquid bubble under the acidic environment. The method is convenient, energy consumption is low, green, no pollution, and because there is no spherical hard template and corrosive agent, the prepared hollow graphene ball has better quality and good air tightness, making it have the function of gas storage. DESCRIPTION OF DRAWING(S) - The drawing shows a structural representation of the hollow graphene microsphere/tablet mixed body capable of storing gas preparation method.