▎ 摘　　要

NOVELTY - A polypyrrole/graphene oxide composite material preparing method involves dissolving graphene oxide in de-ionized water, treating ultrasonically and adding sodium hydroxide solution to obtain graphene oxide solution. The graphene oxide solution is added with three-dimensional porous polypyrrole, stirred, added with potassium permanganate solution and manganese(II) sulfate solution, stirred to obtain mixed solution. The mixed solution is transferred into a reaction kettle and cooled. The resultant product is washed with de-ionized water to neutral and dried to obtain the finished product. USE - Method for preparing polypyrrole/graphene oxide composite material. ADVANTAGE - The method enables preparing polypyrrole/graphene oxide composite material with excellent circulation performance, high energy density and power density, in simple, eco-friendly and reliable manner. DETAILED DESCRIPTION - A polypyrrole/graphene oxide composite material preparing method involves dissolving graphene oxide in de-ionized water, treating ultrasonically for 10 minutes and adding sodium hydroxide solution to obtain graphene oxide solution. The graphene oxide solution is added with three-dimensional porous polypyrrole, stirred fully, added with potassium permanganate solution and manganese(II) sulfate solution, stirred uniformly for 8 hours to obtain mixed solution. The mixed solution is processed ultrasonically for 5 minutes, transferred into a reaction kettle, reacted at 185 degrees C for 4 hours and cooled naturally to room temperature to obtain resultant product. The resultant product is washed with de-ionized water to neutral and dried to obtain the finished product, where the three-dimensional porous polypyrrole with graphene oxide has mass ratio of 0.1-4:1, the ratio of the manganese(II) sulfate solution to the potassium permanganate solution is 9:1, the ratio of manganese(II) sulfate solution and sodium hydroxide solution is 3:5, and the mass ratio of the manganese oxide and the graphene oxide is 0.05-0.5:1.