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Preparation method and application of three-dimensional porous manganese tetroxide/polyaniline composite gel electrode

A composite gel, three-dimensional porous technology, used in the manufacture of hybrid capacitor electrodes and hybrid/electric double layer capacitors, can solve the problems of difficulty in meeting the requirements of new electrodes, poor electrical conductivity and stability, and achieve improved rigidity and excellent electrical conductivity. The effect of sex, high energy density

Inactive Publication Date: 2019-01-04
TIANJIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The conductive polymer gel synthesized in this way often contains a large amount of non-conductive components. When the gel swells, the conductive polymer is easy to separate from the gel matrix, and the conductivity and stability are poor, which is difficult to meet the requirements of new electrodes.

Method used

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  • Preparation method and application of three-dimensional porous manganese tetroxide/polyaniline composite gel electrode
  • Preparation method and application of three-dimensional porous manganese tetroxide/polyaniline composite gel electrode
  • Preparation method and application of three-dimensional porous manganese tetroxide/polyaniline composite gel electrode

Examples

Experimental program
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Effect test

Embodiment 1

[0035] Weigh 0.2g manganese chloride (MnCl 2 4H 2 O), dispersed in 20mL of ethanolamine, ultrasonically dispersed for 2h, MnCl 2 4H 2 O is completely dissolved to form the complex precursor of manganese-ethanolamine. Add the above solution to 80mL of distilled water and stir for 12h, use a centrifuge at a speed of 8000r / min for centrifugation, wash the precipitate with distilled water to a pH value of 6-7, add the precipitate to 60mL of distilled water and heat at 180°C for 24h. The product was washed with distilled water, freeze-dried, and stored for future use.

[0036] Dissolve 0.6mmol of aniline monomer and 0.016mmol of TPPS in 2mL of distilled water to form solution A, and dissolve 0.6mmol of ammonium persulfate in 1mL of distilled water to form solution B; quickly pour solution B into solution A under an ice bath at 4°C Stir rapidly for 30s, then stand still for 10h to react to form a gel, then soak and wash the product in distilled water and ethanol to remove impuri...

Embodiment 2

[0041] Weigh 0.2g MnCl 2 4H 2 O, dispersed in 20mL ethanolamine, ultrasonically dispersed for 2h, MnCl 2 4H 2 O is completely dissolved to form the complex precursor of manganese-ethanolamine. Add the above solution to 80mL of distilled water and stir for 12h, use a centrifuge at a speed of 8000r / min for centrifugation, wash the precipitate with distilled water to a pH value of 6-7, add the precipitate to 60mL of distilled water and heat at 180°C for 24h. The product was washed with distilled water, freeze-dried, and stored for future use.

[0042] Take 0.6 mmol of aniline monomer and 0.6 mmol of TPPS dissolved in 2 mL of distilled water to form solution A, and dissolve 0.6 mmol of ammonium persulfate in 1 mL of distilled water to form solution B. In an ice bath at 4°C, quickly pour solution B into solution A and stir rapidly for 30 seconds, then let it stand for 10 hours to react to form a gel, then soak and wash the product in distilled water and ethanol to remove impuri...

Embodiment 3

[0047] Weigh 0.2g MnCl 2 4H 2 O, dispersed in 20mL ethanolamine, ultrasonically dispersed for 2h, MnCl 2 4H 2 O is completely dissolved to form the complex precursor of manganese-ethanolamine. Add the above solution to 80 mL of distilled water and stir for 12 hours, use a centrifuge to perform centrifugation at a speed of 8000 r / min, wash the precipitate with distilled water to a pH value of 6-7, add the precipitate to 60 mL of distilled water and heat at 180°C for 12 hours. The product was washed with distilled water, freeze-dried, and stored for future use.

[0048] Dissolve 0.6mmol of aniline monomer and 0.016mmol of TPPS in 2mL of distilled water to form solution A, and dissolve 0.6mmol of ammonium persulfate in 1mL of distilled water to form solution B. In an ice bath at 4°C, quickly pour solution B into solution A and stir rapidly for 30 seconds, then let it stand for 10 hours to react to form a gel, then soak and wash the product in distilled water and ethanol to re...

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Abstract

The invention relates to a preparation method and application of a three-dimensional porous manganese tetroxide / polyaniline composite gel electrode. Using TPPS as crosslinking agent and dopant, the conductivity of polyaniline gel was improved by doping polysulfonic acid groups in TPPS molecule. At the same time, the large conjugated structure of TPPS molecule can improve the rigidity of the molecule, and the prepared polyaniline gel network is more stable. The prepared electrode material has a surface morphology structure similar to that of reinforced concrete, stable structure and three-dimensional porous structure, which provides excellent electrical conductivity and higher energy density. The electrode material can be used for preparing a supercapacitor and has the advantages of high energy density, stable structure and excellent conductivity.

Description

technical field [0001] The invention relates to the field of electrode materials, in particular to the preparation and application of a high-performance three-dimensional porous electrode material. In particular, it relates to a preparation method and application of a three-dimensional porous manganese tetroxide / polyaniline composite gel electrode. Background technique [0002] As a green energy storage device, supercapacitor has the advantages of high power density, environmental protection, safety, easy maintenance, and wide operating temperature range, so it has received extensive attention in the field of new energy. Manganese oxide is regarded as a very potential electrode material for supercapacitors due to its high theoretical capacity, low price, and no pollution. Among them, trimanganese tetroxide has become a research hotspot due to its abundant reserves, stability at room temperature, and controllable microstructure. However, the poor conductivity of trimanganes...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01G11/86H01G11/24H01G11/26H01G11/46H01G11/48
CPCH01G11/24H01G11/26H01G11/46H01G11/48H01G11/86Y02E60/13
Inventor 许鑫华马绍帅王文静郑丽婷
Owner TIANJIN UNIV
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