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A polyaniline/carbon nanotube/cotton fabric composite flexible electrode with high specific capacitance and its preparation and application

A technology of carbon nanotubes and composite flexibility, which is applied in the field of polyaniline/carbon nanotubes/cotton fabric composite flexible electrodes, can solve the problem of fewer flexible electrodes, achieve high load capacity, improve stability, and improve the feasibility of preparation Effects of sex and industrialization

Inactive Publication Date: 2019-01-15
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are few studies on flexible electrodes, so it is very promising to use the synergistic effect of polyaniline and carbon nanotubes combined with cotton fabrics to prepare high-performance flexible electrodes.

Method used

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  • A polyaniline/carbon nanotube/cotton fabric composite flexible electrode with high specific capacitance and its preparation and application
  • A polyaniline/carbon nanotube/cotton fabric composite flexible electrode with high specific capacitance and its preparation and application
  • A polyaniline/carbon nanotube/cotton fabric composite flexible electrode with high specific capacitance and its preparation and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] (1) Preparation of carbon nanotube solution:

[0033] Add the carboxylated carbon nanotubes to deionized water, then add sodium dodecylbenzene sulfonate (the ratio of the total amount of carbon nanotubes is 1:1), stir, sonicate for 1h, and finally use a homogenizer for dispersion. The carbon nanotube dispersion liquid is obtained.

[0034] (2) Preparation of carbon nanotube / cotton composite:

[0035] Dip the cotton fabric in the prepared carbon nanotube solution (preferably the surface is dipped) and place it in an infrared proofing machine for processing. The processing conditions are 5℃ / min, heating up to 135℃, and treating for 70min; then take it out and put it in an oven at 100℃ Dry in medium; finally wash with water and dry at room temperature.

[0036] (3) Preparation of polyaniline / carbon nanotube / cotton composite:

[0037] Soak 0.5 g of carbon nanotube / cotton composite in 200 mL of a mixed solution containing 0.5 mol / L hydrochloric acid and 0.25 mol / L aniline for 1 h, t...

Embodiment 2、3

[0043] The operation process is the same as in Example 1, but the performance of the material under different conditions is discussed, because different electrolyte concentrations will stimulate different energy storage capabilities of the electrode materials. The sodium chloride concentration used in Example 2 is 4 mol L -1 , The concentration of sodium chloride used in Example 3 is 6 mol L -1 .

[0044] In the above embodiment, the carbon nanotubes were purchased from Beijing Boyu Co., Ltd., and the performance parameters are shown in Table 1. Other reagents used are of analytical grade, and no further purification is required during use. The infrared proofing machine was purchased from Suzhou Starle Printing and Dyeing Machinery Co., Ltd., and the instrument model is DL-6000Plus (Starle-3); the RTS-9 double-electric four-probe tester (Guangzhou Simei Technology Co., Ltd.) was used to test the square resistance . The electrochemical workstation CHI660E of Shanghai Chenhua Ins...

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Abstract

The invention relates to a polyaniline / carbon nanotube / cotton fabric composite flexible electrode with high specific capacitance, and preparation and application thereof. The preparation comprises the steps: enabling a carbon nanotube to be carried by cotton fabric, carrying out the chemical plating of polyaniline, and obtaining a polyaniline / carbon nanotube / cotton fabric compound; adding a carboxylation carbon nanotube to deionized water, adding sodium dodecyl benzene sulfonate, carrying out the stirring, supersonic and dispersing operation, and obtaining carbon nanotube dispersion liquid; enabling the cotton fabric to be immersed in the carbon nanotube dispersion liquid for processing, then taking out the cotton fabric for drying, washing and airing under the room temperature, obtaining a carbon nanotube / cotton fabric compound, enabling the carbon nanotube / cotton fabric compound to be immersed in mixed liquid of hydrochloric acid and phenylamine for 0.5-1.5 hour, adding ammonium persulfate solution, carrying out the polymerization reaction, washing and airing under the room temperature, and obtaining the electrode. The electrode prepared through the above method is light in weight and is flexible, and the method is high in efficiency. All materials used in an experiment are commercial products, thereby greatly improving the preparation feasibility and industrialization. The method is very good in prospect.

Description

Technical field [0001] The invention belongs to the field of electrode materials and their preparation and application, and particularly relates to a polyaniline / carbon nanotube / cotton fabric composite flexible electrode with high specific capacitance and preparation and application thereof. Background technique [0002] Flexible supercapacitors have been used in many fields, such as multifunctional portable electronic equipment, military equipment, and smart clothing due to their fast charge-discharge performance and good bending performance. Therefore, they have become the research focus in recent years. For flexible supercapacitors, flexible electrodes are an important part of its composition. There are many types of flexible substrates used in the preparation of flexible electrodes. Among them, cotton fabric has become the research darling of textile fabrics because of its low price and easy availability of raw materials. At the same time, cotton fabric has a large number of ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01G11/86H01G11/24H01G11/30H01G11/36H01G11/48
CPCY02E60/13
Inventor 郝天琪俞丹王炜
Owner DONGHUA UNIV