▎ 摘　　要

NOVELTY - An in-line preparation of cubic copper oxide/graphene aerogel composite material, involves (i) placing copper mesh into hydrochloric acid, ultrasonically cleaning with anhydrous ethanol and deionized water, and drying, (ii) ultrasonically dispersing graphene oxide in deionized water to obtain an oxidized graphene dispersion, (iii) pouring the oxidized graphene dispersion into an autoclave liner, then adding the obtained copper mesh, performing hydrothermal reaction, (iv) taking out the product, quenching and freeze-drying at -30 degrees C to -50 degrees C for 12-48 hours. USE - In-line preparation of cubic copper oxide/graphene aerogel composite material (claimed). DETAILED DESCRIPTION - An in-line preparation of cubic copper oxide/graphene aerogel composite material, involves (i) placing copper mesh into hydrochloric acid, ultrasonically cleaning with anhydrous ethanol and deionized water, and drying, (ii) ultrasonically dispersing graphene oxide in deionized water to obtain an oxidized graphene dispersion having a concentration of 1-5 mg/mL, (iii) pouring the oxidized graphene dispersion into an autoclave liner, then adding the obtained copper mesh into the autoclave liner, performing hydrothermal reaction at 120-200 degrees C for 6-15 hours, (iv) taking out the product, quenching and freeze-drying at -30 degrees C to -50 degrees C for 12-48 hours under the vacuum degree of 10-30 Pa to obtain copper oxide/graphene aerogel composite material.