▎ 摘　　要

NOVELTY - Preparation of graphene-supported nanocopper composite material comprises using e improved Hummers method to obtain graphene oxide and freeze-drying; preparing copper salt aqueous solution, mixing with freeze-dried graphene oxide, dispersing in glycol, and magnetically stirring at room temperature; adding to three-mouth flask, transferring to microwave reactor, heating, refluxing to react, and naturally cooling to room temperature; and filtering, washing with deionized water and absolute ethanol, vacuum drying, and fully grinding. USE - Method for preparing graphene-supported nanocopper composite material. ADVANTAGE - The method has convenient, controllable, and simple operation and can be widely used in all kinds of catalysis field.