▎ 摘　　要

NOVELTY - Nitrogen-doped ordered porous highly conductive graphene fiber is claimed. The amount of active nitrogen doping is 0.7-26.3%, fiber diameter is uniform in the range of 25-350 mu m regulation, pore size distribution of fiber surface uniform porous network structure is 1.5-200 nm, specific surface area is 200-805 m2/g, and conductivity is 11006-100300 S/m. USE - The graphene fiber is useful in preparing supercapacitors (claimed). ADVANTAGE - The graphene fiber has low cost and simple process; and is environmentally friendly and suitable for large-scale industrial production. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for: (1) preparing nitrogen-doped ordered porous highly conductive graphene fiber comprising (i) taking natural graphite sheet as raw material, preparing graphene oxide solution by Hummers improved method, performing high speed centrifugation o obtain 8-20 mg/ml graphene oxide dispersion, (ii) mixing and stirring graphene oxide dispersion and water-soluble nitrogen-containing precursor, injecting mixture through needle into cylindrical microchannel at extrusion rate of 5-100 ml/h and sealing both ends, performing heating pre-reduction to obtain amino functionalized graphene fibers, (iii) after cooling cylindrical elongated tube open both ends of the seal, drying at 50-100 degrees C to obtain dried amino-functionalized graphene fibers, and (iv) placing dried amino-functionalized graphene fiber in tube furnace, heating at 600-1400 degrees C and kept under continuous gas protection; and (2) use of nitrogen-doped ordered porous highly conductive graphene fiber in preparing supercapacitor comprising fixing two nitrogen-doped porous graphene fibers with length of 3.5-10.5 cm on substrate in parallel at intervals of 1-3 mm, protruding end of each fiber with conductive silver glue to link it with metal wire, coating middle part with gel electrolyte solution, naturally drying until solvent in gel electrolyte solution evaporates top obtain nitrogen doped ordered porous high conductive graphene fiber solid gel electrolyte supercapacitors.