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Preparation method of poly-3,4-ethylenedioxythiophene/graphite felt flexible electrode material

A technology of ethylenedioxythiophene and flexible electrodes, which is applied in the manufacture of hybrid/electric double layer capacitors, electrodes of hybrid capacitors, etc., can solve the problems of poor high temperature resistance, poor acid and alkali resistance, and low conductivity, and achieve high specific capacitance. , the effect of excellent mechanical properties, excellent cycle stability

Active Publication Date: 2021-01-08
FUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the problems of low conductivity, high temperature resistance and poor acid and alkali resistance of the cotton thread matrix of the current poly-3,4-ethylenedioxythiophene flexible electrode material, the present invention provides a poly-3,4-ethylenedioxythiophene / Preparation method of graphite felt flexible electrode material

Method used

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  • Preparation method of poly-3,4-ethylenedioxythiophene/graphite felt flexible electrode material
  • Preparation method of poly-3,4-ethylenedioxythiophene/graphite felt flexible electrode material
  • Preparation method of poly-3,4-ethylenedioxythiophene/graphite felt flexible electrode material

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Embodiment 1

[0022] (1) In 80 mL deionized water, first add 2 g sodium lauryl sulfate, stir magnetically at room temperature for 15 min, then add 0.25 g 3,4-ethylenedioxythiophene, stir magnetically at room temperature for 45 min , and finally add 0.3 g Orange II, and magnetically stir at room temperature for 30 min to obtain a mixture of Orange II and 3,4-ethylenedioxythiophene.

[0023] (2) Immerse the graphite felt sample into the mixed solution prepared in step (1), then add 20 mL ammonium persulfate hydrochloric acid solution into the mixed solution, and stir magnetically at room temperature for 14 h; the graphite felt sample After taking it out, first soak it in methanol for 8 hours, then soak it in 1 mol / L ammonia water for 36 hours, and finally soak it in 1 mol / L hydrochloric acid for 2 hours, wash it alternately with methanol and deionized water until the filtrate is colorless and at 60 °C After vacuum drying for 24 h, orange II doped poly-3,4-ethylenedioxythiophene / graphite felt ...

Embodiment 2

[0028] (1) In 50 mL deionized water, first add 1.5 g sodium dodecyl sulfate, stir magnetically at room temperature for 10 min, then add 0.2 g 3,4-ethylenedioxythiophene, and stir magnetically at room temperature for 30 min , and finally add 0.2 g Orange II, and magnetically stir at room temperature for 20 min to obtain a mixture of Orange II and 3,4-ethylenedioxythiophene.

[0029] (2) Immerse the graphite felt sample into the mixed solution prepared in step (1), then add 15 mL ammonium persulfate hydrochloric acid solution into the mixed solution, and stir magnetically at room temperature for 4 h; the graphite felt sample After taking it out, soak it in methanol for 5 hours, then soak it in 1 mol / L ammonia water for 24 hours, and finally soak it in 1 mol / L hydrochloric acid for 1 hour, and wash it alternately with methanol and deionized water until the filtrate is colorless and at 60 °C After vacuum drying for 24 h, orange II doped poly-3,4-ethylenedioxythiophene / graphite fel...

Embodiment 3

[0032] (1) In 100 mL deionized water, first add 2.5 g sodium dodecyl sulfate, stir magnetically at room temperature for 20 min, then add 0.3 g 3,4-ethylenedioxythiophene, stir magnetically at room temperature for 60 min , and finally add 0.35 g Orange II, and magnetically stir at room temperature for 40 min to obtain a mixture of Orange II and 3,4-ethylenedioxythiophene.

[0033](2) Immerse the graphite felt sample into the mixed solution prepared in step (1), then add 25 mL ammonium persulfate hydrochloric acid solution into the mixed solution, and stir magnetically at room temperature for 24 h; the graphite felt sample After taking it out, soak it in methanol for 10 h, then soak it in 1 mol / L ammonia water for 48 h, and finally soak it in 1 mol / L hydrochloric acid for 3 h, wash it alternately with methanol and deionized water until the filtrate is colorless and 60 °C After vacuum drying for 24 h, orange II doped poly-3,4-ethylenedioxythiophene / graphite felt composite materia...

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Abstract

The invention discloses a preparation method of a poly-3,4-ethylenedioxythiophene / graphite felt flexible electrode material, and belongs to the technical field of preparation of electrode materials for supercapacitors. The electrode material is formed by polymerizing 3,4-ethylenedioxythiophene serving as a monomer, lauryl sodium sulfate serving as a surfactant, orange II serving as a doping agentand ammonium persulfate serving as an oxidizing agent on a graphite felt by using a chemical oxidation method. The electrode material prepared by the invention has relatively high specific capacitanceand relatively excellent cycling stability, is mainly used for manufacturing a flexible electrode of a supercapacitor, and has remarkable economic value and social benefit.

Description

technical field [0001] The invention belongs to the technical field of preparation of electrode materials for supercapacitors, and in particular relates to a preparation method of poly-3,4-ethylenedioxythiophene / graphite felt flexible electrode materials. Background technique [0002] Conductive polymer flexible electrode materials have the advantages of good flexibility, fast charging and discharging, green environmental protection, high safety and low cost, and have important application value in the field of wearable electronic devices. Among many conductive polymer flexible electrode materials, poly-3,4-ethylenedioxythiophene flexible electrode material exhibits the advantages of high conductivity, good high temperature stability, low oxidation potential and electrochemical stability, and is an ideal flexible electrode materials for supercapacitors. However, poly-3,4-ethylenedioxythiophene has strong conjugated molecular chain rigidity and poor mechanical properties; th...

Claims

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Application Information

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IPC IPC(8): H01G11/86H01G11/24H01G11/30H01G11/40H01G11/48
CPCH01G11/24H01G11/30H01G11/40H01G11/48H01G11/86Y02E60/13
Inventor 李宝铭林莹莹江俊辉
Owner FUZHOU UNIV
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