▎ 摘　　要

NOVELTY - A polyaniline nano-wire/graphene hollow sphere-graphene oxide is prepared by dissolving a nickel chloride in water, adding a hydrazine hydrate and uniformly stirring, adding a sodium hydroxide solution, and reacting in a water bath to obtain nickel nano-particles, placing the nickel nano-particles in a round bottom flask, adding 40-60 mL triethylene glycol, and uniformly stirring the mixture, adding sodium hydroxide solution, and heating to obtain the precipitate, washing and drying the precipitate, and heating, etching the nickel nano-particles by adding 3-5 mol/L hydrochloric acid, followed by washing and freeze-drying to obtain a graphene hollow sphere, immersing the graphene hollow sphere in a 1 mol/L sulfuric acid solution containing aniline, and stirring, taking a graphene oxide is dissolved in deionized water for ultrasonic dispersion to obtain a graphene oxide suspension, mixing the suspension, filtering and freeze-drying the mixed solution to obtain the finished product. USE - Polyaniline nano-wire/graphene hollow sphere-graphene oxide for use in supercapacitor. ADVANTAGE - The polyaniline nano-wire/graphene hollow sphere-graphene oxide has high current density, specific capacitance and capacitance retention rate. DETAILED DESCRIPTION - A polyaniline nano-wire/graphene hollow sphere-graphene oxide is prepared by using a nickel chloride, 80% hydrazine hydrate and 50% sodium hydroxide solution in a molar ratio of 1:2-4:2-4, dissolving the nickel chloride in water, adding the hydrazine hydrate and uniformly stirring, adding the sodium hydroxide solution, and reacting in a water bath at 60-80 degrees C for 3-5 hours, until a gray precipitate is obtained, followed by washing and freeze-drying to obtain nickel nano-particles, placing 2-3 g nickel nano-particles in a round bottom flask, adding 40-60 mL triethylene glycol, uniformly stirring the mixture and adding to 4-6 drops of 50% sodium hydroxide solution, and heating at 220-250 degrees C for 6-12 hours to obtain the precipitate, washing and drying the precipitate, and heating at 500 degrees C for 1 hours under the protection of argon atmosphere, etching the nickel nano-particles by adding 3-5 mol/L hydrochloric acid, followed by washing and freeze-drying to obtain a graphene hollow sphere, immersing the graphene hollow sphere in a 1 mol/L sulfuric acid solution containing aniline, and stirring for 3-5 hours to completely attach the aniline to the graphite, adding the surface of the olefinic hollow sphere with an equivalent volume of a 1 mol/L sulfuric acid solution containing ammonium persulfate and stirring uniformly at 0-5 degrees C for 12-24 hours to obtain resultant product, washing the product and freeze-drying to obtain graphene hollow sphere/polyaniline, where the molar ratio of aniline to ammonium persulfate is 4:1, uniformly stirring 10 mg polyaniline nano-wire/graphene hollow sphere and 20-40 mL cetyltrimethylammonium bromide aqueous solution, taking 1-3 mg graphene oxide is dissolved in deionized water for ultrasonic dispersion for 2-4 hours to obtain a graphene oxide suspension, mixing the suspension with the graphene oxide suspension, stirring for 3-6 hours, filtering and freeze-drying the mixed solution to obtain the finished product. An INDEPENDENT CLAIM is also included for a method for preparing a polyaniline nanowire/graphene hollow sphere-graphene oxide electrode, which involves mixing a polyaniline nano-wire/graphene hollow sphere-graphene oxide, conductive carbon black and polyvinylidene fluoride at a mass ratio of 8:1:1, and uniformly mixing with N-methylpyrrolidone, uniformly coating the mixed slurry on a stainless steel mesh, and drying at 120 degrees C overnight, followed by tableting on a press to obtain the finished product.