▎ 摘　　要

NOVELTY - Preparing Congo red-doped poly 3,4-ethylenedioxythiophene-bonded graphene nanoribbons involves preparing thienyl graphene nanoribbons by reacting 2-ethylamine thiophene with acid chloride graphene nanoribbons. The thienyl graphene nanoribbons, Congo red and ferric chloride are added to chloroform to configure a mixed solution. The 3,4-ethylenedioxythiophene is added dropwise to the above mixed solution and prepared by chemical oxidation polymerization. The 0.5-1g of acyl graphene nanoribbons is added to 200-400mL of tetrahydrofuran, ultrasonicated at room temperature for 30-60 minutes, 0.5-2g of 2-ethylamine thiophene is added, and magnetically stirred the reaction at room temperature under nitrogen protection for 24 -48 hours, centrifuged, washed with ethanol, and freeze-dried at -50 degrees C for 48 hours to obtain thienyl graphene nanoribbons. USE - Method for preparing Congo red-doped poly 3,4-ethylenedioxythiophene-bonded graphene nanoribbons used in preparing an electrode of a supercapacitor (claimed). ADVANTAGE - The method enables to prepare Congo red-doped poly 3,4-ethylenedioxythiophene-bonded graphene nanoribbons, which has higher specific capacitance and better cycle stability and has significant economic and social benefits. DETAILED DESCRIPTION - Preparing Congo red-doped poly 3,4-ethylenedioxythiophene-bonded graphene nanoribbons involves preparing thienyl graphene nanoribbons by reacting 2-ethylamine thiophene with acid chloride graphene nanoribbons. The thienyl graphene nanoribbons, Congo red and ferric chloride are added to chloroform to configure a mixed solution. The 3,4-ethylenedioxythiophene is added dropwise to the above mixed solution and prepared by chemical oxidation polymerization. The 0.5-1g of acyl graphene nanoribbons is added to 200-400mL of tetrahydrofuran, ultrasonicated at room temperature for 30-60 minutes, 0.5-2g of 2-ethylamine thiophene is added, and magnetically stirred the reaction at room temperature under nitrogen protection for 24 -48 hours, centrifuged, washed with ethanol, and freeze-dried at -50 degrees C for 48 hours to obtain thienyl graphene nanoribbons. The 0.2-0.4g thienyl graphene nanoribbons is added to 100-200mL chloroform, sonicated at room temperature for 30-60 minutes, add 0.05-0.2g Congo red, and continue sonication at room temperature for 20-60 minutes Finally, 0.25-2.5g of ferric chloride is added, and the ultrasound is continued at 0 degrees C for 30-90 minutes to prepare a mixture of thienyl graphene nanoribbons, Congo red and ferric chloride. The 5-40 mL of 3,4-ethylenedioxythiophene solution is added dropwise to the mixture at a rate of 10-40 drops / minutes, and magnetically stirred the reaction for 12-24 hours at 10-30 degrees C. The reaction mixture is poured into 250-500mL of methanol, magnetically stirred at room temperature for 30-60 minutes, and then left for 12-36 hours, filtred, cross washed with methanol and deionized water, and vacuum dried at 60 degrees C for 24 hours, and Congo red-doped poly 3,4-ethylenedioxythiophene-bonded graphene nanoribbons is obtained.