▎ 摘　　要

NOVELTY - Three-dimensional network structure reduced graphene oxide/cobalt oxide-iron oxide composite material is first connected by the cobalt oxide nanowire interconnecting reduced graphene oxide thin plates to form a networked reduced graphene oxide/cobalt oxide, and then embedding iron oxide nanospheres to generate desired product. USE - Three-dimensional network structure reduced graphene oxide/cobalt oxide-iron oxide composite material. ADVANTAGE - The three-dimensional network structure reduced graphene oxide/cobalt oxide-iron oxide composite material improves the electrochemical performance of the composite material. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing three-dimensional network structure reduced graphene oxide/cobalt oxide-iron oxide composite material, which involves: (A) pouring the peeled graphene oxide into the reaction kettle; (B) using thermal reduction method to react for 8-48 h under the condition of 100-400 degrees C to obtain the concentration of 0.5-3mg/ml reduced graphene oxide/aqueous solution; (C) dispersing the cobalt salt aqueous solution and the mixed solution of urea and ammonium fluoride dissolved in ethanol in the reduced graphene oxide/aqueous solution; (D) transferring the mixture to the autoclave for 10-14 hours at a temperature of 180-220 degrees C; (E) neutralizing and stirring vigorously to dissolve; (F) adding ethanol dropwise; (G) transferring to an autoclave for reaction at a temperature of 180-220 degrees C for 22-26h; (H) carrying out centrifugal separation; (I) washing multiple times; and (J) drying to obtain desired product.