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Reaction container and method for preparing composite material filled with polyethylenedioxythiophene

A technology of ethylenedioxythiophene and reaction vessel, which is applied in the direction of pressure vessel used in chemical process, etc.

Inactive Publication Date: 2017-01-04
PEKING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] At present, there is no report on the preparation of poly-3,4-ethylenedioxythiophene on the surface of untreated nanoparticles by gas-phase polymerization of monomers without the use of oxidants and electropolymerization.

Method used

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  • Reaction container and method for preparing composite material filled with polyethylenedioxythiophene
  • Reaction container and method for preparing composite material filled with polyethylenedioxythiophene

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Embodiment 1

[0031] In the present invention, the reaction vessel for preparing composite materials by modifying poly-3,4-ethylenedioxythiophene on the surface of inorganic oxide nanoparticles is as follows: figure 2 As shown, it includes a bottle body 1, a high vacuum regulating valve 2 and a threaded sealing plug 3 with a silicone rubber sealing ring. A threaded sealing plug 3 with a silicon rubber sealing ring is capped at the bottleneck of the bottle body 1, and a high vacuum regulating valve 2 is arranged at the branch pipe mouth of the bottle body 1. When in use, the bottle mouth is opened by rotating the threaded sealing plug 3 with a silicone rubber sealing ring, the sample is added, the high-vacuum regulating valve 2 is opened, and the whole system is evacuated through the branch pipe to achieve a vacuum state.

[0032] The preparation method of filling poly-3,4-ethylenedioxythiophene on the surface of titanium dioxide nanoparticles and particle gaps comprises the following steps...

Embodiment 2

[0037] The preparation method of filling poly-3,4-ethylenedioxythiophene on the surface of manganese dioxide nanoparticles and particle gaps comprises the following steps:

[0038] (1) Mix manganese sulfate solution with a concentration of 75mM and potassium permanganate solution with a concentration of 50mM under vigorous stirring, filter under pressure, and dry the precipitate at 100°C. The obtained manganese dioxide solid and ethylene glycol were mixed according to a mass ratio of 1:2, and ball milled in a ball mill at a rotational speed of 1800rmp for 8h to obtain a manganese dioxide slurry.

[0039] (2) Coat the manganese dioxide slurry on the conductive glass, spin-coat at 4000rpm for 45s, and dry at 100°C for 30min to ensure that the solvent is completely volatilized to obtain a layer of manganese dioxide nanoparticle film.

[0040] (3) Add 3,4-ethylenedioxythiophene to the chloroform solution with a volume fraction of 30% formic acid, add 1,3-dibromo-5,5-dimethyl-2,4 ...

Embodiment 3

[0043] The preparation method of filling poly-3,4-ethylenedioxythiophene on the surface of alumina nanoparticles and particle gaps comprises the following steps:

[0044] (1) Coat the aluminum oxide nanoparticle dispersion on the conductive glass, spin-coat at 2000rpm for 60s, and dry at 150°C for 30min to ensure that the solvent is completely volatilized to obtain a layer of aluminum oxide nanoparticle film.

[0045] (2) 3,4-ethylenedioxythiophene is added to the chloroform solution of acetic acid with a volume fraction of 40%, and 1,3-dibromo-1,3,5-triazine-2 is added under ice-cooling, 4,6-triketone undergoes bromination reaction, and the reaction time is 8-24h. After the reaction was completed, deionized water was added to the organic solution to quench the reaction, and the organic phase was extracted and separated. The neutralized organic phase was washed with 10% potassium carbonate alkaline aqueous solution, and the organic phase was separated. The solvent in the pro...

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Abstract

The invention discloses a reaction container and a method for directly modifying poly(3,4-ethylenedioxythiophene) on inorganic oxide nano-particle surfaces for preparing a composite material. With the reaction container and the method provided by the invention, a gas-phase monomer can easily penetrate into gaps among the nano-particles, such that a layer of poly(3,4-ethylenedioxythiophene) film can be formed on the surfaces of the nano-particles with high unevenness, and the electric conductivity of the composite material is improved. The process does not require pre-treatment upon the nano-particles, and does not require an oxidant, such that oxidant residue on particle surface is avoided. An electrochemical process is not needed, such that nano-particle chemical activity is ensured. The prepared nano-particle and poly(3,4-ethylenedioxythiophene) composite material has good electric conductivity and reactivity.

Description

technical field [0001] The invention belongs to the field of inorganic / organic composite materials, and in particular relates to a reaction vessel and a method for directly filling poly-3,4-ethylenedioxythiophene in the gaps of inorganic oxide nanoparticles to prepare composite materials. Background technique [0002] Inorganic nanoparticles prepared by hydrothermal method, ball milling method and electrochemical method have large specific surface area, superior catalytic activity and electrochemical activity, and can be used as active materials for photoelectric or electrochemical electrodes in dye-sensitized solar cells, It is widely used in fields such as supercapacitors and secondary batteries. Although inorganic nanoparticles have the above advantages, many nanoparticles have poor conductivity. Although they have high electrochemical activity, they cannot effectively export charges, thereby reducing the chemical activity of the electrode. The general strategy is to ble...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J3/04C08G61/12C08L65/00C08K3/22
CPCB01J3/04C08G61/122C08K3/22C08K2003/2227C08K2003/2237C08K2003/2262C08K2201/011C08L65/00
Inventor 邹德春于潇苏昕简蓉
Owner PEKING UNIV
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