▎ 摘　　要

NOVELTY - Graphene/cobalt ferrite/polyaniline nanocomposite material comprises nitrogen doped graphene, cobalt ferrite and polyaniline, where the content of nitrogen element in nitrogen-doped graphite is 2%. USE - Graphene/cobalt ferrite/polyaniline nanocomposite material. ADVANTAGE - The graphene/cobalt ferrite/polyaniline nanocomposite material improves the electrochemical property of composite material. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing graphene/cobalt ferrite/polyaniline nanocomposite material, which involves: (A) ultrasonically treating graphite oxide, and then adding anhydrous ethanol to graphite oxide so as to obtain dispersed graphene oxide solution; (B) dissolving iron nitrate and cobalt nitrate in anhydrous ethanol, and then stirring them uniformly to dissolve the mixture completely; (C) pouring the mixed salt solution into the dispersed graphene oxide solution, and then stirring the mixture uniformly; (D) adding urea to the obtained mixture, and stirring them uniformly to dissolve the mixture completely; (E) transferring the dissolved mixture into a hot water, where the temperature of hot water is 120-200 degrees C in a kettle, and then centrifuging the obtained product , and then washing the centrifuged extract with deionized water; (F) ultrasonically treating the extract, redispersing it in ethanol, and then processing in an ice bath; (G) adding aniline to the re-dispersed extract in an ice bath, and stirring it continuously to obtain uniform solution of graphene/cobalt ferrite/polyaniline nanocomposite; (H) doping the obtained uniform solution with an acid and initiator, and then processing the solution in an ice bath; and (I) filtering the obtained material, washing the filtered product and thendrying it to obtain graphene/cobalt ferrite/polyaniline nanocomposite as desired material.