▎ 摘　　要

NOVELTY - A polyaniline nano-wire array/graphene hollow sphere is prepared by dissolving 0.05-0.2 mol/L nickel chloride in water, adding 80% hydrazine hydrate, and stirring, adding 50% sodium hydroxide, reacting in a water bath of 50-80 degrees C and freeze-drying to obtain nickel nano-particles. 1-3 g nickel nano-particles placed into the flask, added with 30-50 mL triethylene glycol, and stirred, 50% sodium hydroxide solution is added, and heated at 220-250 degrees C for 6-12 hours to obtain precipitate. The precipitate is washed and dried, and heat treated at 500 degrees C for 1 hours to obtain graphene hollow spheres. The graphene hollow sphere is heat-treated under the protection of argon atmosphere at 500-900 degrees C for 1 hours. The graphene hollow sphere is soaked in sulfuric acid solution containing aniline and stirred for 3-5 hours, add 1 mol/L sulfuric acid solution containing ammonium persulfate and stirred at -5 degrees C for 12-24 hours, and the product is washed and freeze-dried to obtain the finished product. USE - Polyaniline nano-wire array/graphene hollow sphere for use in super capacitor. ADVANTAGE - The polyaniline nano-wire array/graphene hollow sphere has high performance, high specific capacitance, current density and capacitance retention rate, can be prepared in simple and cost effective manner. DETAILED DESCRIPTION - A polyaniline nano-wire array/graphene hollow sphere is prepared by dissolving 0.05-0.2 mol/L nickel chloride in water, adding 80% hydrazine hydrate, and stirring evenly, adding 50% sodium hydroxide, reacting in a water bath of 50-80 degrees C, washing and freeze-drying, until a gray precipitate is obtained as nickel nano-particles. 1-3 g nickel nano-particles placed into the flask, added with 30-50 mL triethylene glycol, and evenly stirred, 3-6 drops of 50% sodium hydroxide solution is added, and heated at 220-250 degrees C for 6-12 hours to obtain precipitate. The precipitate is washed and dried, and heat treated at 500 degrees C for 1 hours under the protection of argon atmosphere and the nickel nano-particles are etched in dilute hydrochloric acid to obtain graphene hollow spheres. The graphene hollow sphere is heat-treated under the protection of argon atmosphere at 500-900 degrees C for 1 hours. The graphene hollow sphere is soaked in a 1 mol/L sulfuric acid solution containing aniline and stirred for 3-5 hours, add an equivalent volume of 1 mol/L sulfuric acid solution containing ammonium persulfate and stirred at -5 degrees C for 12-24 hours, and the product is washed and freeze-dried to obtain the finished product.