▎ 摘　　要

NOVELTY - A coal-based graphene fiber photoelectrode is prepared by taking coal-based graphene/hydrogenated titanium dioxide fiber as an external electrode, coating the coal-based graphene fiber with a gel electrolyte as internal electrode and tightly wrapping the external electrode on the internal electrode to perform oxygen plasma etching for low-concentration gas photoelectric conversion. USE - Coal-based graphene fiber photoelectrode for low concentration gas photoelectric conversion (claimed). ADVANTAGE - The coal-based graphene fiber photoelectrode is prepared with better flexibility, better conductivity, better visible light activity, easy weaving and easy amplification in a simple and cost-effective manner. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a method for preparing a coal-based graphene fiber photoelectrode.