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A kind of carbon nanotube/polypyrrole/graphite felt composite electrode and preparation method thereof

A composite electrode and carbon nanotube technology, which is applied in the manufacture of hybrid capacitor electrodes, hybrid/electric double layer capacitors, etc., can solve the problems of limited application, complex preparation process of composite materials, and low specific capacitance, and achieve controllable operation and preparation The effect of mild conditions and simple process

Inactive Publication Date: 2016-06-29
FUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] At present, polypyrrole composite materials containing nano-carbon materials have good electrical conductivity, stability, environmental friendliness and mechanical properties, but the preparation process of composite materials is complicated and the specific capacitance is low, which greatly limits its application in supercapacitor electrode materials. The application still needs to be further strengthened

Method used

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  • A kind of carbon nanotube/polypyrrole/graphite felt composite electrode and preparation method thereof
  • A kind of carbon nanotube/polypyrrole/graphite felt composite electrode and preparation method thereof
  • A kind of carbon nanotube/polypyrrole/graphite felt composite electrode and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0017] (1) Preparation of an aqueous solution of a mixture of carbon nanotubes, dodecylbenzenesulfonic acid, sodium dodecylbenzenesulfonate and pyrrole: Weigh 200 mg of oxidized carbon nanotubes and place them in 100 mL of deionized water, sonicate for 10 h to prepare Uniformly dispersed aqueous solution of carbon nanotubes; add a mixture of dodecylbenzenesulfonic acid and sodium dodecylbenzenesulfonate with a molar ratio of 1:1 to the above aqueous solution, and ultrasonically control the concentration of dodecylbenzene in the aqueous solution for 20 minutes. The concentration of sulfonate ions is 0.1mol / L; weigh pyrrole with a molar ratio of 1:1 to dodecylbenzenesulfonate ions, place it in the above aqueous solution, and ultrasonicate for 20 minutes to obtain carbon dioxide nanotubes, dodecylbenzenesulfonate Aqueous solution of a mixture of acid, sodium dodecylbenzenesulfonate and pyrrole.

[0018] (2) Preparation of carbon nanotube / polypyrrole / graphite felt composite electr...

Embodiment 2

[0022] (1) Preparation of an aqueous solution of a mixture of carbon nanotubes, dodecylbenzenesulfonic acid, sodium dodecylbenzenesulfonate and pyrrole: Weigh 120 mg of oxidized carbon nanotubes and place them in 100 mL of deionized water, sonicate for 8 hours to prepare Uniformly dispersed aqueous solution of carbon nanotubes; add a mixture of dodecylbenzenesulfonic acid and sodium dodecylbenzenesulfonate with a molar ratio of 1:1 to the above aqueous solution, and ultrasonically control the concentration of dodecylbenzene in the aqueous solution for 20 minutes. The concentration of sulfonate ions is 0.1mol / L; weigh pyrrole with a molar ratio of 1:1 to dodecylbenzenesulfonate ions, place it in the above aqueous solution, and ultrasonicate for 20 minutes to obtain carbon dioxide nanotubes, dodecylbenzenesulfonate Aqueous solution of a mixture of acid, sodium dodecylbenzenesulfonate and pyrrole.

[0023] (2) Preparation of carbon nanotube / polypyrrole / graphite felt composite ele...

Embodiment 3

[0026] (1) Preparation of an aqueous solution of a mixture of carbon nanotubes, dodecylbenzenesulfonic acid, sodium dodecylbenzenesulfonate and pyrrole: Weigh 80 mg of oxidized carbon nanotubes and place them in 100 mL of deionized water, sonicate for 6 hours to prepare Uniformly dispersed aqueous solution of carbon nanotubes; add a mixture of dodecylbenzenesulfonic acid and sodium dodecylbenzenesulfonate with a molar ratio of 1:1 to the above aqueous solution, and ultrasonically control the concentration of dodecylbenzene in the aqueous solution for 20 minutes. The concentration of sulfonate ions is 0.1mol / L; weigh pyrrole with a molar ratio of 1:1 to dodecylbenzenesulfonate ions, place it in the above aqueous solution, and ultrasonicate for 20 minutes to obtain carbon dioxide nanotubes, dodecylbenzenesulfonate Aqueous solution of a mixture of acid, sodium dodecylbenzenesulfonate and pyrrole.

[0027] (2) Preparation of carbon nanotube / polypyrrole / graphite felt composite elec...

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Abstract

The invention discloses a carbon nanometer tube / polypyrrole / graphite felt composite electrode as well as a preparing method and application thereof. Oxidation pretreatment graphite felt is used as a work electrode, a platinum wire is used as a counter electrode, a saturated calomel electrode is used as a reference electrode, mixed solution of carbon oxide nanometer tubes, dodecylbenzene sulfonic acid, sodium dodecyl benzene sulfonate and pyrrole is used as electrolyte, and electrochemical circulation volt-ampere oxidation polymerization reaction is used for preparing the carbon nanometer tube / polypyrrole / graphite felt composite electrode. The carbon nanometer tube / polypyrrole / graphite felt composite electrode and the preparing method have the advantages that the prepared composite electrode has high specific capacitance and excellent circulation stability, in addition, the preparing condition is mild, the process is simple, the operation is controllable, and obvious social and economic benefits are realized.

Description

technical field [0001] The invention belongs to the field of preparation of electrodes for supercapacitors, and in particular relates to a carbon nanotube / polypyrrole / graphite felt composite electrode and a preparation method and application thereof. Background technique [0002] Polypyrrole has attracted much attention due to its simple preparation, reversible doping, environmental friendliness, high conductivity, large specific capacitance, and excellent film-forming properties. At the same time, nano-carbon materials can further improve the mechanical and electrical properties of polypyrrole. P.M.Ajayan (P.M.Ajayan, O.Stephan, C.Colliex, D.Trauth.Science, 1994, 26:1212-1214), GaoyiHan (GaoyiHan, JinyingYuan, GaoquanShi, FeiWei.ThinSolidFilms, 2005, 474:64-69), Hamed Arami (Hamed Arami, Mahyar Mazloumi, Razieh Khalifehzadeh, Shahriar Hojjati Emami, S.K. Sadrnezhaad. Materials Letters, 2007, 61:4412-4415), Yeon-KyeongLee (Yeon-KyeongLee, Keum-JuLee, Dae-SungKim, DonginMeta...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01G11/30H01G11/48H01G11/86
Inventor 李宝铭饶臻然叶蕾蕾郑玉婴
Owner FUZHOU UNIV