▎ 摘　　要

NOVELTY - Preparation of graphene loaded cobalt hydroxide (Co(OH)2) nanocomposite material comprises mixing cobalt chloride hexahydrate (CoCl2.6H2O), graphite oxide, and isopropanol to prepare a solution; ultrasonically and uniformly dispersing the solution; heating the solution while stirring; adding sodium sulfide (Na2S) and water in the mixed liquid for reacting; and centrifuging, cleaning, drying, and grinding the black sediment to obtain graphene loaded Co(OH)2 nanocomposite material. USE - Preparation of graphene loaded Co(OH)2 nanocomposite material (claimed). ADVANTAGE - The method is soft chemical method with simple operation; and provides graphene loaded Co(OH)2 nanocomposite material with superior electrochemical performance in mild condition.