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Tin dioxide/polypyrrole nanocomposite and preparation method thereof

A composite material, pyrrole nanotechnology, applied in the field of material science, can solve the problems of electrode material particles losing electrical contact, material dimension instability, electrode pulverization, etc., to achieve the effect of reducing production costs and simplifying the synthesis process

Inactive Publication Date: 2013-09-04
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This mechanical stress can easily lead to unstable material dimensions, powdering and cracking of the electrode, which in turn leads to the loss of electrical contact of the electrode material particles and the attenuation of the electrode capacity.

Method used

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  • Tin dioxide/polypyrrole nanocomposite and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0016] Embodiment 1 prepares a kind of tin dioxide / polypyrrole composite material, concrete steps are as follows:

[0017] a. Weigh 1.635g of cetyltrimethylammonium bromide, 5.723g of n-pentanol, and 40.883g of n-hexane with an electronic balance to form a transparent microemulsion system, weigh 0.204g of urea and measure 3ml of tetrachloromethane Aqueous tin chloride solution (0.1mol / L) was added to the above microemulsion and stirred magnetically for 30min and ultrasonically for 15min to mix evenly. The obtained solution was transferred to a 100ml hydrothermal reaction kettle, and the reaction temperature was controlled at 130°C for 9 hours. The resulting solution was naturally cooled to room temperature.

[0018] d. Transfer the solution in the hydrothermal reaction kettle to a 100ml beaker, add 0.0245g of pyrrole monomer dropwise to the beaker and stir it magnetically. Place the beaker in an ice-water bath, and slowly add an aqueous solution of ferric chloride (0.144g of...

Embodiment 2

[0020] Embodiment 2 prepares a kind of tin dioxide / polypyrrole composite material, concrete steps are as follows:

[0021] a. Use an electronic balance to weigh 2.453g cetyltrimethylammonium bromide, 4.088g n-pentanol, and 40.883g n-hexane, mix and stir to form a transparent microemulsion system, weigh 0.245g urea and measure 4ml tetrachloromethane Aqueous tin chloride solution (0.1mol / L) was added to the above microemulsion and stirred magnetically for 30min and ultrasonically for 15min to mix evenly. The obtained solution was transferred to a 100ml hydrothermal reaction kettle, and the reaction temperature was controlled at 150°C for 6h. The resulting solution was naturally cooled to room temperature.

[0022] b. Transfer the solution in the hydrothermal reaction kettle to a 100ml beaker, add 0.0266g of pyrrole monomer dropwise to the beaker and stir it magnetically. Place the beaker in an ice-water bath, and slowly add an aqueous solution of ferric chloride (0.164g of fer...

Embodiment 3

[0024] Embodiment 3 prepares a kind of tin dioxide / polypyrrole composite material, concrete steps are as follows:

[0025] a. Weigh 3.271g of cetyltrimethylammonium bromide, 7.359g of n-pentanol, and 40.883g of n-hexane with an electronic balance, mix and stir to form a transparent microemulsion system, weigh 0.286g of urea and measure 5ml of tetrachloromethane Aqueous tin chloride solution (0.1mol / L) was added to the above microemulsion and stirred magnetically for 30min and ultrasonically for 15min to mix evenly. The obtained solution was transferred to a 100ml hydrothermal reaction kettle, and the reaction temperature was controlled at 140°C for 12h. The resulting solution was naturally cooled to room temperature.

[0026] b. Transfer the solution in the hydrothermal reaction kettle to a 100ml beaker, add 0.0286g of pyrrole monomer dropwise to the beaker and stir it magnetically. Place the beaker in an ice-water bath, and slowly add an aqueous solution of ferric chloride ...

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Abstract

The invention discloses a tin dioxide / polypyrrole nanocomposite. A tin tetrachloride solution and urea are taken as raw materials, and nano tin dioxide is prepared through a hydrothermal method in a microemulsion system including CTAB (cegtyl trimethyl ammonium bromide), n-pentanol and n-hexane; and then in the microemulsion system, ferric trichloride is taken as an oxidizing agent, and the material is prepared through microemulsionin situ polymerization to a pyrrole monomer. According to the composite material, nano tin dioxide is dispersed in loose conductive polypyrrole matrix, so that electrical contact between tin dioxide particles can be guaranteed effectively, and the nanocomposite is enabled to combine advantages of polypyrrole and tin dioxide, is expected to be an excellent Lithium-ion battery material, and is widely applied to the fields of micro-electronics, sensing, energy and the like. Meanwhile, the preparation method combines the advantages of the hydrothermal method and the microemulsion method, and has the advantages of easily obtained synthesis raw materials, simple synthesis and low cost.

Description

technical field [0001] The invention belongs to the field of material science, in particular to a tin dioxide / polypyrrole nanocomposite material and a preparation method thereof. Background technique [0002] In recent years, tin dioxide nanomaterials have attracted widespread attention because of their excellent photoelectric properties. At present, tin dioxide nanomaterials are widely used in lithium-ion batteries, liquid crystal displays, catalysts, sensors, smart windows and other fields. People try to prepare nano-tin dioxide materials by various methods, including hydrothermal method, solvothermal method, sol-gel method, microemulsion method, precipitation method, metal oxide evaporation method and so on. Among them, the hydrothermal method has the advantages of simple process, low cost, no pollution, and low energy consumption. It is a common method for current scientific researchers to prepare nano-tin dioxide. However, the particle size distribution of tin dioxide...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G73/06C08K3/22C08K9/04C08L79/04
Inventor 石元昌孙立波李晓臣何召品丁奎
Owner SHANDONG UNIV
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