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Polyaniline and manganese dioxide nanocomposite material and its preparation method and application

A nano-composite material, manganese dioxide technology, applied in the field of polyaniline and manganese dioxide nano-composite materials and their preparation, can solve the problems of unsatisfactory performance, high cost, large pollution, etc., and achieves avoiding crystal transformation and high stability. The effect of good stability and cycle stability

Active Publication Date: 2022-03-01
WUHAN INSTITUTE OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The preparation method provided by the invention overcomes the problems of large pollution, high cost and unsatisfactory performance of the traditional preparation method, and has good application prospects

Method used

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  • Polyaniline and manganese dioxide nanocomposite material and its preparation method and application
  • Polyaniline and manganese dioxide nanocomposite material and its preparation method and application
  • Polyaniline and manganese dioxide nanocomposite material and its preparation method and application

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Effect test

Embodiment 1

[0033] 10 g of potassium permanganate was added to 400 mL of deionized water, and stirred completely dissolved. Alternative 30ml of aniline is used. The above-mentioned potassium permanganate aqueous solution was separated from aniline in the same sealed reaction chamber, and the volatilized aniline gas was reacted on the gas-liquid interface of the gas-liquid interface. At room temperature, it was allowed to react for 12 hours. The product was then centrifuged, washed, dried to obtain polyaniline and manganese dioxide nanocomposites.

Embodiment 2

[0035] 8 g of potassium permanganate was added to 400 ml of deionized water, and stirred completely dissolved. Another 25 ml of aniline is treated. The above-mentioned potassium permanganate aqueous solution was separated from aniline in the same sealed reaction chamber, and the volatilized aniline gas was reacted on the gas-liquid interface of the gas-liquid interface. At room temperature, it was allowed to react for 12 hours. The product was then centrifuged, washed, dried to obtain polyaniline and manganese dioxide nanocomposites.

Embodiment 3

[0037] 4 g of potassium permanganate was added to 400 ml of deionized water, and stirred completely dissolved. Another 15 ml of aniline is used. The above-mentioned potassium permanganate aqueous solution was separated from aniline in the same sealed reaction chamber, and the volatilized aniline gas was reacted on the gas-liquid interface of the gas-liquid interface. At room temperature, it was allowed to react for 12 hours. The product was then centrifuged, washed, dried to obtain polyaniline and manganese dioxide nanocomposites.

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Abstract

The invention belongs to the technical field of nanocomposite materials, in particular to a polyaniline and manganese dioxide nanocomposite material and its preparation method and application. The method comprises the steps of: 1) preparing a deionized aqueous solution of potassium permanganate, 2) placing the aqueous potassium permanganate solution and aniline separately in the same closed reaction chamber, and then sucking the closed reaction chamber to negative pressure, Stand still to be volatilized aniline and the potassium permanganate in the potassium permanganate aqueous solution react on the gas-liquid interface; 3) after the reaction is completed, the potassium permanganate aqueous solution is centrifuged, and the solid phase is washed and dried, The nanocomposite material of polyaniline and manganese dioxide is obtained. The invention adopts a gas-liquid interface reaction method, the gas phase is volatile aniline gas, and the liquid phase is potassium permanganate aqueous solution. The reaction occurs at the interface, aniline is oxidized to polyaniline by potassium permanganate, and potassium permanganate is reduced to manganese dioxide at the same time, and a nanocomposite material of polyaniline and manganese dioxide is obtained.

Description

Technical field [0001] The present invention belongs to the technical field of nanocomposites, and more particularly to polyaniline and manganese dioxide nanocomposites and preparation methods and applications thereof. Background technique [0002] Because of the large use and depletion of non-renewable resources such as coal, oil, natural gas, environmental energy issues are huge challenges. Therefore, electrochemical energy storage devices are increasingly becoming a hot research area. Manganese dioxide is an important transition metal oxide, which is one of the most important new energy materials, and is widely used in supercapacitors and secondary batteries. At present, the preparation method of manganese dioxide and its composites is mainly: chemically redox reduction method, electrolysis and hydrothermal method. A large number of by-products will have a large amount of by-products during the production process of chemical oxidation, and the environment needs to be strict, a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L79/02C08K3/22H01G11/30H01G11/46H01G11/48C08G73/02
CPCC08K3/22H01G11/30H01G11/46H01G11/48C08G73/0266C08K2003/2262C08K2201/011C08L79/02Y02E60/13
Inventor 黄华波涂金英李亮刘玉兰
Owner WUHAN INSTITUTE OF TECHNOLOGY
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