▎ 摘　　要

NOVELTY - Preparing self-supporting graphene film of polyaniline/polyaniline composite electrode structure comprises using the Hummers method, oxidizing the commercial graphite sheet into a single layer of graphene by oxidation of nitric acid and potassium permanganate, washing with a large amount of hydrochloric acid and deionized water, freeze-drying to a certain concentration of graphene, disposing a certain concentration of graphene aqueous solution, and filtering using vacuum-filtering method-C is used to obtain self-supporting graphene film, growing the polyaniline nanofibers by in-situ chemical oxidation polymerization on the surface of the graphene film, using a three-electrode system, immersing the graphene film loaded with polyaniline nanofibers in an electrolyte containing aniline monomer by a potentiostatic electrochemical deposition method to realize vertical growth of polyaniline nano-beards on the surface of polyaniline fibers. USE - The electrode structure is useful in supercapacitor (claimed). ADVANTAGE - The method increases the conductivity of the polyaniline nanofiber network, improves the wettability of the flexible composite electrode, and exhibits good electrochemical performance. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing self-supporting graphene film of polyaniline/polyaniline composite electrode structure by above method.