▎ 摘　　要

NOVELTY - Preparing graphene-based electrode involves utilizing the nitrogen-doped graphene to prepare thiolated nitrogen-doped graphene. The alkynyl-functionalized poly(N-(4-aminophenyl)acrylamide) and tetrahydrofuran are ultrasonically oscillated to dissolve. A thiolated nitrogen-doped graphene are added and ultrasonically oscillated to disperse uniformly. A photoinitiator (2-hydroxy-2-methylpropiophenone), nitrogen-filled protection and ultraviolet light irradiation reaction for 10min are performed, centrifuged, washed, dried to obtain nitrogen-doped graphene grafted poly(N-(4-aminophenyl)acrylamide). The nitrogen-doped graphene-grafted poly(N-(4-aminophenyl)acrylamide) are added to the dilute hydrochloric acid solution. The pyrrole is added to the mixture. An aqueous solution of ammonium persulfate is added dropwise at 2 °C. The reaction is carried out at 22 °C for 3 hours. The product is washed with distilled water and dried. USE - Method for preparing graphene-based electrode for use in electrochemical field e.g. folding display, and pulse sensor. ADVANTAGE - The method enables improving the electrolyte-electrode interaction, electrical conductivity of the material and capacity of the electrode, and has high porosity and large specific surface area DETAILED DESCRIPTION - Preparing graphene-based electrode involves utilizing the nitrogen-doped graphene to prepare thiolated nitrogen-doped graphene. The alkynyl-functionalized poly(N-(4-aminophenyl)acrylamide) and tetrahydrofuran are ultrasonically oscillated to dissolve. A thiolated nitrogen-doped graphene are added and ultrasonically oscillated to disperse uniformly. A photoinitiator (2-hydroxy-2-methylpropiophenone), nitrogen-filled protection and ultraviolet light irradiation reaction for 10min are performed, centrifuged, washed, dried to obtain nitrogen-doped graphene grafted poly(N-(4-aminophenyl)acrylamide). The nitrogen-doped graphene-grafted poly(N-(4-aminophenyl)acrylamide) are added to the dilute hydrochloric acid solution. The pyrrole is added to the mixture. An aqueous solution of ammonium persulfate is added dropwise at 2 °C. The reaction is carried out at 22 °C for 3 hours. The product is washed with distilled water and dried to obtain nitrogen-doped graphene grafted poly(N-(4-aminophenyl)acrylamide) grafted polypyrrole. The nitrogen-doped graphene grafted poly(N-(4-aminophenyl)acrylamide) grafted polypyrrole, acetylene black and PTFE are mixed in absolute ethanol coated on the surface of nickel foam after ultrasonic dispersion followed by tablet pressing after vacuum drying to obtain graphene-based electrodes.