▎ 摘　　要

NOVELTY - The method involves activating a carbon fiber as a working electrode and preparing the oxidized graphene ionic liquid dispersion. The carbon fiber is placed in an acid solution for electro-catalytic oxidation to obtain the activated carbon fiber. The oxidized graphene ionic liquid dispersion is a dispersant with an ionic liquid and a graphene oxide as a dispersant. The activated carbon fiber is placed in the oxidized graphene-ionic liquid dispersion and the electro-deposition is performed to obtain graphene-modified carbon fibers. USE - Method of electro-deposition of graphene/carbon fibers using ionic liquid for detection of hydrogen peroxide (all claimed). ADVANTAGE - The surface area of the graphene/carbon fibers is improved. The graphene/carbon fibers functions as a self-supporting flexible microelectrode for the detection of hydrogen peroxide. The sensitivity of the fibers is improved. DESCRIPTION OF DRAWING(S) - The drawing shows a photographic view of graphene/carbon fiber.