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A kind of preparation method of polypyrrole/cotton fabric supercapacitor electrode

A technology of supercapacitors and cotton fabrics, applied in the direction of hybrid capacitor electrodes, hybrid/electric double layer capacitor manufacturing, etc., to achieve the effects of favorable transmission, low cost, and low performance requirements for equipment

Active Publication Date: 2021-05-28
ZHONGYUAN ENGINEERING COLLEGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] Many researchers have used in-situ chemical oxidation polymerization or in-situ interfacial polymerization to prepare polypyrrole / cotton fabric electrodes, but there is no report on the combination of the two methods to prepare polypyrrole / cotton fabric flexible supercapacitor electrodes.

Method used

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  • A kind of preparation method of polypyrrole/cotton fabric supercapacitor electrode

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Effect test

Embodiment 1

[0028] A kind of preparation method of polypyrrole / cotton fabric supercapacitor electrode of the present embodiment, the steps are as follows:

[0029] (1) Immerse the washed and dried cotton cloth (2×4cm) into 50 grams of 0.1mol / L pyrrole aqueous solution, and after soaking for 0.5 hours, add 50 grams of 0.5mol / L iron trioxide aqueous solution dropwise to the reaction solution , the dropwise addition time was 0.5 hour, and the reaction was continued for 4 hours after the dropwise addition, and the temperature of the reaction system was maintained at 0°C during the whole process. After the reaction, the material was washed with water, and polypyrrole / cotton fabric was obtained after drying.

[0030] (2) Prepare 50 grams of 0.3 mol / L ferric chloride aqueous solution containing 0.004 mol / L cetyltrimethylammonium bromide, soak the cotton fabric in it, shake for 10 minutes, and then add 50 grams of 0.2 mol / L dropwise The cyclohexane solution of pyrrole was added dropwise for 30 mi...

Embodiment 2

[0034] A kind of preparation method of polypyrrole / cotton fabric supercapacitor electrode of the present embodiment, the steps are as follows:

[0035] (1) Immerse the washed and dried cotton cloth (2×4cm) into 50 grams of 0.6mol / L pyrrole aqueous solution, and after soaking for 2 hours, add 50 grams of 0.6mol / L iron trioxide aqueous solution dropwise to the reaction solution , the dropwise addition time was 0.5 hour, and the reaction was continued for 2 hours after the dropwise addition, and the temperature of the reaction system was maintained at 2°C during the whole process. After the reaction, the material was washed with water, and polypyrrole / cotton fabric was obtained after drying.

[0036](2) Prepare 50 grams of 0.6 mol / L ferric chloride aqueous solution containing 0.006 mol / L cetyltrimethylammonium bromide, soak the cotton fabric in it, shake for 30 minutes, and then add 50 grams of 0.6 mol / L dropwise The cyclohexane solution of pyrrole was added dropwise for 30 minut...

Embodiment 3

[0040] A kind of preparation method of polypyrrole / cotton fabric supercapacitor electrode of the present embodiment, the steps are as follows:

[0041] (1) Immerse the washed and dried cotton cloth (2×4cm) into 50 grams of 0.5mol / L pyrrole aqueous solution. After soaking for 1.5 hours, add 50 grams of 0.5mol / L iron trioxide aqueous solution dropwise to the reaction solution , the dropwise addition time was 0.5 hour, and the reaction was continued for 2 hours after the dropwise addition, and the temperature of the reaction system was maintained at 7° C. during the whole process. After the reaction, the material was washed with water, and polypyrrole / cotton fabric was obtained after drying.

[0042] (3) Prepare 50 grams of 0.5 mol / L ferric chloride aqueous solution containing 0.005 mol / L cetyltrimethylammonium bromide, soak the cotton fabric in it, shake for 20 minutes, and then add 50 grams of 0.5 mol / L dropwise The cyclohexane solution of pyrrole was added dropwise for 30 minu...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Abstract

The invention belongs to the technical field of supercapacitors, and relates to a method for preparing polypyrrole / cotton fabric supercapacitor electrodes. Firstly, the polypyrrole / cotton fabric was prepared by in-situ chemical oxidation polymerization, and then the pyrrole monomer was polymerized onto the polypyrrole / cotton fabric prepared by the in-situ chemical oxidation polymerization method by the in-situ interfacial polymerization method, and finally the polypyrrole / cotton fabric supercapacitor was obtained electrode. The aim is to prepare fabric electrodes with large mass loading and high area specific capacitance. The preparation method of the present invention is simple, the composition of the reaction solution is simple, the cost is low, and the performance required for the equipment is low; by controlling the type of surfactant and its concentration ratio, the volume ratio of the organic phase to the water phase, the concentration of the organic monomer and the oxidant, and the reaction time and other reaction conditions to obtain composite electrical materials with high specific capacitance and good cycle stability, which have broad application prospects in the fields of portable electronics and energy products and smart textiles.

Description

technical field [0001] The invention belongs to the technical field of supercapacitors, and relates to a method for preparing polypyrrole / cotton fabric supercapacitor electrodes. Background technique [0002] With the increasing requirements for wearable electronic devices, the comfort of wearable electronic devices has attracted more and more attention from researchers. It is common to add active materials to flexible substrates by chemical deposition, electrodeposition and coating. The preparation method of the electrode, the researchers assembled the prepared flexible electrode and the flexible electrolyte to make a solid flexible supercapacitor. Researchers at home and abroad mainly use different active materials (mainly carbon materials, metal oxides and conductive polymer materials) to produce different forms of flexible materials on many flexible substrates (mainly metals, plastics, paper and fabrics, etc.). Super capacitor. However, regardless of whether it is plas...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01G11/86H01G11/24H01G11/30H01G11/48
CPCH01G11/24H01G11/30H01G11/48H01G11/86Y02E60/13
Inventor 刘斌国潘玮张启刘栋
Owner ZHONGYUAN ENGINEERING COLLEGE
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