▎ 摘　　要

NOVELTY - Preparation of three-dimensional mesoporous nickel cobaltite/nitrogen-doped graphene composite material involves dispersing prepared product containing graphene oxide solution and mixed solutions, cobalt nitrate hexahydrate, nickel nitrate hexahydrate and hexamethylenetetramine to obtain mixed liquid, preparing nickel cobalt oxide precursor by reacting mixed liquid and polytetrafluoroethylene and transferring precursor to tubular furnace and calcining mixture. USE - Preparation of three-dimensional mesoporous nickel cobaltite/nitrogen-doped graphene composite material (claimed). ADVANTAGE - The preparation of three-dimensional mesoporous nickel cobaltite/nitrogen-doped graphene composite material is simple, economical and carried out under mild reaction conditions. DETAILED DESCRIPTION - Preparation of three-dimensional mesoporous nickel cobaltite/nitrogen-doped graphene composite material involves (1) dispersing oxidized graphene in acetonitrile to obtain uniform graphene oxide solution (A), (2) transferring solution (A) to polytetrafluoroethylene hydrothermal kettle and carrying out constant temperature thermal reaction to obtain mixed liquid (B), (3) filtering mixed liquid (B), washed liquid, drying liquid to obtain product (C), (4) dispersing uniformly product (C), cobalt nitrate hexahydrate, nickel nitrate hexahydrate and hexamethylenetetramine by ultrasonic to obtain mixed liquid (D), (5) transferring mixed liquid (D) to polytetrafluoroethylene hydrothermal kettle and carrying out constant temperature thermal reaction to obtain nickel cobalt oxide precursor (E), and (6) transferring precursor (E) to tubular furnace and calcining mixture in an air atmosphere.