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In-situ interfacial polymerization method of fiber-based conductive polypyrrole/carbon nano tube composite electrode material

A carbon nanotube composite and electrode material technology, which is used in the manufacture of hybrid capacitor electrodes, electrolytic capacitors, hybrid/electric double layer capacitors, etc., to achieve the effects of good cycle stability, uniform and meticulous product distribution, and high specific capacitance.

Inactive Publication Date: 2015-03-04
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method is mostly used in the preparation of polymer films, but it has not been reported in the preparation of composite electrode materials in the reaction system of fiber products.

Method used

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  • In-situ interfacial polymerization method of fiber-based conductive polypyrrole/carbon nano tube composite electrode material
  • In-situ interfacial polymerization method of fiber-based conductive polypyrrole/carbon nano tube composite electrode material
  • In-situ interfacial polymerization method of fiber-based conductive polypyrrole/carbon nano tube composite electrode material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Prepare a 0.5mol / L ferric chloride aqueous solution containing 0.005mol / L cetyltrimethylammonium bromide, then add carbon nanotubes 5mg / ml, and form an aqueous dispersion A after ultrasonic treatment for 20min; the cotton fabric Immerse in the water phase dispersion A, control the bath ratio of the fabric to the water phase volume at 1:50, shake for 10 minutes, then add 0.4mol / L pyrrole in chloroform solution B dropwise, the dropping speed is controlled at 50-60d / min, drop After the addition is complete, place the mixed solution in an ice-water bath (0°C) and oscillate and stir for 120 minutes; after the reaction, take out the sample, soak it in 0.1mol / L sulfuric acid solution for 30 minutes, then soak it in acetone for 10 minutes, and wash it with deionized water. Dry under vacuum.

Embodiment 2

[0032] Prepare a 0.6mol / L ferric chloride aqueous solution containing 0.004mol / L dodecyltrimethylammonium bromide and 0.006mol / L Tween 80, add carbon nanotubes 6mg / ml, and form water after ultrasonic treatment for 30min phase dispersion A; immerse the viscose fabric in the aqueous phase dispersion A, the bath ratio of the fabric and the water phase volume is controlled at 1:50, shake for 10 minutes, then add 0.4mol / L pyrrole in chloroform solution B dropwise, the dropping speed Control at 50-60d / min. After the dropwise addition, place the mixed solution in an ice-water bath (0°C) and shake and stir to continue the reaction for 100 minutes; after the reaction, the sample is taken out, soaked in 0.1mol / L hydrochloric acid solution for 40 minutes, and then placed in acetone Soak for 10min, wash with deionized water and dry under vacuum.

Embodiment 3

[0034] Prepare a 0.7mol / L ferric chloride aqueous solution containing 0.005mol / L cetyltrimethylammonium bromide and 0.005mol / L Tween 80, add carbon nanotubes 6mg / ml, and form water after ultrasonic treatment for 30min phase dispersion A; soak the cotton fabric in the aqueous phase dispersion A, control the bath ratio of fabric and water phase volume at 1:60, vibrate for 20min, then add 0.5mol / L pyrrole in chloroform or bromoform solution B dropwise, The dropping speed is controlled at 50-60d / min. After the dropping is completed, place the mixed solution in an ice-water bath (0°C) and shake and stir to continue the reaction for 100 minutes; Soak in acetone for 5 min, wash with deionized water and dry under vacuum.

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Abstract

The invention relates to an in-situ interfacial polymerization method of a fiber-based conductive polypyrrole / carbon nano tube composite electrode material. The method includes the following steps that: cellulose fiber fabric is immersed in an aqueous-phase solution containing an oxidizing agent, a surfactant and carbon nano tubes; an organic-phase solution containing monomers and a surfactant is added into the mixture of the cellulose fiber fabric and the aqueous-phase solution dropwise; and after the organic-phase solution is added into the mixture dropwise, the newly formed mixture is put into an ice-water mixing bath so as to be subjected to oscillation reaction. According to the in-situ interfacial polymerization method of the fiber-based conductive polypyrrole / carbon nano tube composite electrode material, the micro porosity of cellulose fibers is utilized; and the flexible composite electrode material which is jointly composed of fiber, conductive polypyrrole and carbon nano tubes is prepared in an in-situ polymerization mode. Compared with a traditional in-situ chemical polymerization method, and with the method of the invention adopted, reaction time can be shortened, and the structure of the electrode material is more uniform and regular, and resistivity of the electrode material is lower, and specific capacitance and cyclic stability of the electrode material is high. The method has a bright application prospect in the fields of portable electronic and energy products and intelligent textiles.

Description

technical field [0001] The invention belongs to the field of preparation of flexible electrode materials, in particular to an in-situ interface polymerization method of fiber-based conductive polypyrrole / carbon nanotube composite electrode materials. Background technique [0002] With the rapid development of electronic technology, the miniaturization and portability of electronic devices and corresponding driving power have become the mainstream of development. Textile fiber materials have the characteristics of large specific surface that is incomparable to other sheets. Fabrics are used as the matrix of energy storage units, and light batteries and supercapacitors are formed by assembling conductive active substances on their surfaces. On the other hand, fibers and their Aggregates (yarns, fabrics, etc.) have the characteristics of machinability and combination, and have a large imagination space in terms of design and application. The skeleton selection of portable flexi...

Claims

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Application Information

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IPC IPC(8): H01G11/34H01G11/86
CPCH01G11/00H01G11/30H01G11/34H01G11/36H01G11/48H01G11/86Y02E60/13
Inventor 赵亚萍蔡再生朱航悦刘彩虹陈琛
Owner DONGHUA UNIV
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