▎ 摘　　要

NOVELTY - Preparation of polyaniline-coated graphene/cobalt aluminum-layered double hydroxide composite electrode material involves preparing graphene oxide using modified Hummer method, mixing graphene oxide with deionized water to obtain graphene oxide dispersion, adding aniline to dispersant, uniformly dispersing to obtain aniline dispersion, mixing graphene oxide with the aniline dispersion, adding initiator and inorganic acid to obtain graphene oxide-aniline mixed solution, mixing cobalt salt and deionized water to obtain cobalt salt solution, mixing aluminum salt with deionized water to obtain aluminum salt solution, mixing cobalt salt solution with the aluminum salt solution, adding urea, hydrothermally reacting, cooling to room temperature, washing with water, drying under vacuum to obtain cobalt aluminum-layered double hydroxide and calcining under nitrogen atmosphere. USE - The method is useful for preparation of polyaniline-coated graphene/cobalt aluminum-layered double hydroxide composite electrode material, which is useful for research of supercapacitor. ADVANTAGE - The method enables preparation of polyaniline-coated graphene/cobalt aluminum-layered double hydroxide composite electrode material in simple, easy, economical and environmentally-friendly manner.