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A kind of conductive fabric/polyaniline composite material electrode and preparation method thereof

A technology of conductive fabrics and composite materials, applied in hybrid capacitor electrodes, hybrid/electric double layer capacitor manufacturing, textiles and papermaking, etc., can solve the problem of difficult control of polyaniline growth rate, polyaniline microstructure and loading capacity, difficult to achieve Large-scale production of conductive fabric/polyaniline composite electrodes, etc., to overcome discontinuity defects and avoid uncontrollable morphology

Active Publication Date: 2022-04-26
FOSHAN UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These methods use toxic aniline directly as the starting material, and it is difficult to control the growth rate of polyaniline on carbon cloth and the microstructure and loading of polyaniline during chemical or electrochemical synthesis, and the synthesis process It is difficult to achieve large-scale production of conductive fabric / polyaniline composite electrodes by batch operation

Method used

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  • A kind of conductive fabric/polyaniline composite material electrode and preparation method thereof
  • A kind of conductive fabric/polyaniline composite material electrode and preparation method thereof
  • A kind of conductive fabric/polyaniline composite material electrode and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0028] After the commercialized carbon cloth (W0S1009) was ultrasonically cleaned with deionized water and acetone to remove impurities, the carbon cloth was taken out, washed with a large amount of deionized water until the filtrate was neutral, and dried in a blast drying oven to obtain the pretreated carbon cloth. cloth, its macroscopic and microscopic morphology is shown in figure 1 , (a) is the macroscopic topography figure of the commercialized carbon cloth in Example 1 of the present invention, (b) is the scanning electron microscope image of the commercialized carbon cloth in the Example 1 of the present invention, by figure 1 It can be seen that the carbon cloth is made of carbon fiber, and the surface of the carbon fiber is smooth;

[0029] Add 5 mL of aniline to 10 mL of absolute ethanol and 15 mL of hydrochloric acid (1mol L -1 ) in the mixed solution, recorded as solution A. A certain amount of ammonium persulfate was added to 15 mL of dilute hydrochloric acid (...

Embodiment 2

[0032] The commercial carbon cloth (W1S1009) was ultrasonically cleaned with deionized water and acetone to remove impurities, and then the carbon cloth was taken out, washed with a large amount of deionized water until the filtrate was neutral, and dried in a blast drying oven to obtain the pretreated carbon cloth ;

[0033] Add 5 mL of aniline to 10 mL of absolute ethanol and 15 mL of sulfuric acid (1mol L -1 ) in the mixed solution, recorded as solution A. A certain mass of ammonium persulfate was added to 15 mL of dilute sulfuric acid (1mol L -1 ), recorded as solution B, wherein the molar ratio of ammonium persulfate to aniline was 1.2. The A solution and the B solution were quickly mixed, and placed in an ice-water bath to stand for 20 h. After the reaction, the dark green product was filtered and washed with water until the filtrate was neutral, and the filter cake was dried in a blast drying oven to obtain polyaniline powder. Weigh 30mg of the above polyaniline and...

Embodiment 3

[0036] Commercialized carbon cloth (W0S1002) was cleaned with deionized water and methyl ethyl ketone ultrasonically to remove impurities, and then the carbon cloth was taken out, washed with a large amount of deionized water until the filtrate was neutral, and dried in a blast drying oven to obtain a pretreated carbon cloth;

[0037] Add 4 mL of aniline to 10 mL of absolute ethanol and 15 mL of perchloric acid (1.5 mol L -1) in the mixed solution, recorded as solution A. A certain amount of ammonium persulfate powder was added to 15 mL of dilute perchloric acid (1.5 mol L -1 ) to prepare ammonium persulfate solution, which is recorded as B solution, wherein the mol ratio of ammonium persulfate to aniline is 1.5. The A solution and the B solution were quickly mixed, and placed in an ice-water bath to stand for 24 hours. After the reaction, the dark green product is filtered and washed with water until the filtrate is neutral, and the filter cake is put into a blast drying ov...

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Abstract

The invention belongs to the technical field of composite material preparation, and discloses a conductive fabric / polyaniline composite electrode and a preparation method thereof. First, the conductive fabric is soaked in a polyaniline solution, and then uniformly dispersed electrodes are formed on the surface of the conductive fabric by a vacuum infiltration method. Polyaniline nanoparticles, this method effectively avoids the problems of uncontrollable morphology and easy generation of polyaniline fibers in the process of traditional chemical synthesis of polyaniline, and can be adjusted by changing the soaking time and adjusting the vacuum degree of the vacuum oven. Loading of polyaniline. The invention is simple and easy to implement, can realize mass production of conductive fabric / polyaniline composite electrodes, and effectively overcomes the discontinuity of polyaniline-based materials prepared by in-situ chemical oxidation and electrochemical deposition methods, and the composite electrode can be used to prepare High-performance supercapacitors.

Description

technical field [0001] The invention belongs to the technical field of composite electrode preparation, and in particular relates to a conductive fabric / polyaniline composite electrode and a preparation method thereof. Background technique [0002] With the massive consumption of fossil energy, scientists are looking for new energy that can replace fossil energy, such as wind energy, solar energy, tidal energy, chemical energy, etc. Secondary batteries and supercapacitors are two major chemical energy sources. Compared with secondary batteries, supercapacitors have the advantages of fast charge and discharge, high cycle performance, etc., and the material of the electrodes determines the performance of supercapacitors. Due to the high conductivity, flexibility and self-supporting properties of conductive fabrics in carbon materials, conductive fabrics are usually combined with polyaniline with high pseudocapacitance, and the prepared conductive fabric / polyaniline composite ...

Claims

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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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01G11/24H01G11/40H01G11/48H01G11/86D06M15/61D06M101/40
CPCH01G11/24H01G11/40H01G11/48H01G11/86D06M15/61D06M2101/40Y02E60/13
Inventor 洪晓东姜海艳富家伟
Owner FOSHAN UNIVERSITY
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