▎ 摘　　要

NOVELTY - Preparing temperature-responsive graphene-based hydrogel electrode comprises respectively preparing thiolated graphene and alkynyl functionalized poly(N-isopropylacrylamide)-co-N-(4-aminophenyl)acrylamide, dissolving ultrasonically alkynyl-functionalized poly(N-isopropylacrylamide)-co-N-(4-aminophenyl)acrylamide and tetrahydrofuran, adding thiolated graphene, vibrating, adding photoinitiator (2-hydroxy-2-methylpropiophenone), filling with nitrogen, conducting reaction to obtain graphene grafted poly(N-isopropylacrylamide)-co-N-(4-aminophenyl)acrylamide, adding graphene-grafted poly(N-isopropylacrylamide)-co-N-(4-aminophenyl)acrylamide into dilute hydrochloric acid solution, adding aniline, adding aqueous ammonium persulfate solution, mixing graphene-grafted poly(N-isopropylacrylamide)-co-N-(4-aminophenyl)acrylamide-grafted polyaniline, acetylene black and poly(1,1,2,2-tetrafluoroethylene), ultrasonically dispersing, coating on surface of nickel foam, drying, and tableting. USE - The temperature-responsive graphene-based hydrogel electrode useful in field of functional polymer material and electrochemistry. ADVANTAGE - The graphite alkenyl hydrogel electrode has high molecular material and electrochemical field, high porosity and large specific surface area. The aniline is grafted to surface, which greatly improves the specific surface areas of the hydrogels, improves the material specific capacitance, and has temperature-sensitive characteristics. The electrode has stable technique, easy operation, low device dependence, no pollution, and suitable for industrial large-scale production, and is expected to be ideal flexible super capacitor electrode material. DETAILED DESCRIPTION - Preparing temperature-responsive graphene-based hydrogel electrode comprises respectively preparing thiolated graphene and alkynyl functionalized poly(N-isopropylacrylamide)-co-N-(4-aminophenyl)acrylamide, dissolving ultrasonically alkynyl-functionalized poly(N-isopropylacrylamide)-co-N-(4-aminophenyl)acrylamide and tetrahydrofuran, adding thiolated graphene, ultrasonically vibrating to disperse uniformly, adding photoinitiator (2-hydroxy-2-methylpropiophenone), filling with nitrogen for protection, conducting the reaction under ultraviolet light to obtain graphene grafted poly(N-isopropylacrylamide)-co-N-(4-aminophenyl)acrylamide, adding graphene-grafted poly(N-isopropylacrylamide)-co-N-(4-aminophenyl)acrylamide into 10 wt.%dilute hydrochloric acid solution, adding aniline, at 2degrees Celsius adding 17 wt.% aqueous ammonium persulfate solution dropwise, reacting at 20-25degrees Celsius to obtain graphene-grafted poly(N-isopropylacrylamide)-co-N-(4-aminophenyl)propylene amide grafted polyaniline, mixing graphene-grafted poly(N-isopropylacrylamide)-co-N-(4-aminophenyl)acrylamide-grafted polyaniline, acetylene black and poly(1,1,2,2-tetrafluoroethylene) in absolute ethanol, ultrasonically dispersing, coating on the surface of nickel foam, vacuum drying, tableting to obtain graphene-grafted poly(N-isopropylacrylamide)-co-N-(4-aminophenyl)acrylamide-grafted polyaniline electrode.