▎ 摘　　要

NOVELTY - A graphene/polypyrrole nano-composite material is prepared by mixing graphene oxide and solvent at room temperature, subjecting to ultrasonic processing, adding dropwise pyrrole monomer, stirring in an ice bath, controlling the temperature, adding ammonium persulfate, mixing, washing obtained solid with ethanol and deionized water, and vacuum drying. USE - Method of preparing a graphene/polypyrrole nano-composite material for use as electrode for super capacitor (claimed). ADVANTAGE - The method is simple and short, prepares product having conductivity of 0.85-5.19 S/cm, and can be applied to industrial production. DETAILED DESCRIPTION - A graphene/polypyrrole nano-composite material is prepared by: (A) mixing graphene oxide and solvent at room temperature, and subjecting to ultrasonic processing for 30-60 minutes to obtain graphene oxide solution having a concentration of 0.01-2.5 mg/ml; (B) adding dropwise pyrrole monomer to the graphene oxide solution, stirring for 10-200 minutes in an ice bath, controlling the temperature at 0 to - 2 degrees C, adding ammonium persulfate (10-50 mass%), and mixing for 30 minutes; and (C) washing obtained solid with ethanol and deionized water, and vacuum drying at 20-80 degrees C for 2-24 hours. The mass ratio of graphene oxide and pyrrole monomer is 1-100:1-100. The mole ratio of ammonium persulfate to pyrrole is 1-20:1-20.