▎ 摘　　要

NOVELTY - Preparing polypyrrole/nickel(II) hydroxide sulfonated graphene ternary composite electrode material comprises (i) taking natural crystalline flake graphite as raw material, synthesizing graphene oxide using improved Hummer's method, water washing and drying, (ii) dispersing the graphene oxide in deionized water, uniformly dispersing graphene oxide brown suspension, ultrasonically stripping, (iii) continuously stirring condition, slowly dropping the aryl diazonium salt into obtained product sodium borohydride to reduce graphene oxide, fully reacting with ice water bath, dialyzing with de-ionized water, (iv) ultrasonic dispersing nickel salt and into 10 ml deionized water, ultrasonic processing, adding ammonium hydroxide, sealing, hydrothermal reacting, washing, vacuum drying and (v) taking p-toluenesulfonic acid solution, adding slowly dropping ammonium persulfate solution treated and sulfonated graphene oxide / nickel(II)-pyrrole hydroxide, ultrasonic dispersing and stirring. USE - The material is used as supercapacitor electrode material (claimed). ADVANTAGE - The method is simple, easy to obtained raw material, economical, environmentally friendly and easy to control. The prepared product had good electrochemical performance and very high specific capacitance. DETAILED DESCRIPTION - Preparing polypyrrole/nickel(II) hydroxide sulfonated graphene ternary composite electrode material comprises (i) taking natural crystalline flake graphite as raw material, synthesizing graphene oxide using improved Hummer's method, water washing and drying, (ii) dispersing the graphene oxide in deionized water, uniformly dispersing graphene oxide brown suspension at a concentration of 0.9-1 mg/ml by ultrasonication, obtaining aqueous solution of sodium borohydride at a concentration of 0.9-1.0 mg/ml, regulating pH value of the graphene oxide suspension solution to 9-10 using sodium carbonate solution, adding the sodium borohydride aqueous solution into the graphene oxide suspension in volume ratio is 1:1, mixing them uniformly, continuously stirring at 80 degrees C in water bath, fully reacting, cooling the mixed solution to room temperature, ultrasonically stripping for 15 minutes, (iii) continuously stirring condition, slowly dropping the aryl diazonium salt into obtained product sodium borohydride to reduce graphene oxide in the mass ratio 3:1, fully reacting with ice water bath, dialyzing with de-ionized water for 7 days, ultrasonically processing to obtain sulfonated graphene SGO, (iv) ultrasonic dispersing 0.282-0.941 g nickel salt and 0.03 g SGO into 10 ml deionized water, ultrasonic processing for 30 minutes, adding 0.2 ml ammonium hydroxide to obtain solution, sealing it in the reaction kettle, hydrothermal reacting at 180-200 degrees C for 5-6 hours, washing with water, washing with alcohol, vacuum drying at 50-60 degrees C to obtain sulfonated graphene/nickel(II) hydroxide and (v) taking p-toluenesulfonic acid solution, adding slowly dropping ammonium persulfate solution treated and sulfonated graphene oxide/ nickel(II)-pyrrole hydroxide, ultrasonic dispersing for 10-20 minutes, stirring at 0-5 degrees C bath condition for 8-10 hours, washed with water and alcohol vacuum drying at 50-60 degrees C for 10-12 hours, where the volume of each reagent, the quality ratio is: 30-40 ml containing 0.414 g toluene sulfonic acid, 0.1-0.3 ml treated pyrrole, 0.1 g sulfonated graphene oxide/nickel(II) hydroxide 2:20 ml containing 0.1186 g ammonium persulfate solution. An INDEPENDENT CLAIM is also included for polypyrrole/nickel(II) hydroxide sulfonated graphene ternary composite electrode material prepared by above method.