▎ 摘　　要

NOVELTY - A bacterial cellulose-based flexible nitrogen-doped graphene supercapacitor electrode material preparing method involves adding the nitrogen source to the graphene oxide dispersion, and performing hydrothermal reaction at 80-160 degrees C for 3-24 hours to obtain the nitrogen-doped reduced graphene oxide. The nitrogen-doped reduced graphene oxide is added to water and mixed uniformly to obtain nitrogen-doped reduced graphene oxide dispersion. The pyrrole monomer and p-toluenesulfonic acid are added to the bacterial cellulose suspension and uniformly dispersed to obtain pyrrole/bacterial cellulose suspension. The pyrrole/bacterial cellulose suspension is added with an aqueous solution of ferric chloride in an ice water bath to polymerize in situ to form polypyrrole/bacterial cellulose suspension. The nitrogen-doped reduced graphene oxide dispersion is added to the polypyrrole/bacterial cellulose suspension, continued the reaction and suction filtered to obtain the finished product. USE - Method for preparing bacterial cellulose-based flexible nitrogen-doped graphene supercapacitor electrode material for preparing super capacitor (claimed). ADVANTAGE - The method enables preparing the bacterial cellulose-based flexible nitrogen-doped graphene supercapacitor electrode material with high specific capacity of the 605F/g under the current density of 1A/g, better electrochemical performance and high strength and flexible characteristics. DETAILED DESCRIPTION - A bacterial cellulose-based flexible nitrogen-doped graphene supercapacitor electrode material preparing method involves adding the nitrogen source to the graphene oxide dispersion, and performing hydrothermal reaction at 80-160 degrees C for 3-24 hours to obtain the nitrogen-doped reduced graphene oxide. The nitrogen-doped reduced graphene oxide is added to water and mixed uniformly to obtain nitrogen-doped reduced graphene oxide dispersion. The pyrrole monomer and p-toluenesulfonic acid are added to the bacterial cellulose suspension and uniformly dispersed to obtain pyrrole/bacterial cellulose suspension. The pyrrole/bacterial cellulose suspension is added with an aqueous solution of ferric chloride in an ice water bath to polymerize in situ to form polypyrrole/bacterial cellulose suspension. The nitrogen-doped reduced graphene oxide dispersion is added to the polypyrrole/bacterial cellulose suspension, and continued the reaction to obtain polypyrrole/bacterial cellulose/nitrogen-doped reduced graphene oxide suspension, which is suction filtered to obtain the finished product, where the ratio of pyrrole monomer, p-toluenesulfonic acid and bacterial cellulose is 0.15-0.35mL:600-700mg: 112-168mg, the ratio of ferric chloride to the pyrrole monomer is 900-1000 mg:0.15-0.35 mL, and the ratio of the nitrogen-doped reduced graphene oxide to the pyrrole monomer is 18-36mg:0.15-0.35mL. An INDEPENDENT CLAIM is also included for a bacterial cellulose-based flexible nitrogen-doped graphene supercapacitor electrode material.