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Method for preparing ordered ion conductor based on polyelectrolyte brush

A polyelectrolyte brush and ion conductor technology, applied in electrolytic coatings, surface reaction electrolytic coatings, coatings, etc., can solve problems such as low ion conductivity, and achieve improved ion conductivity, improved brittleness, and regular and orderly structures Effect

Active Publication Date: 2015-12-09
广东南海普锐斯科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, due to the limitation of the brittleness of titanium dioxide itself and its low ion conductivity, it cannot be used alone as an ion-conducting material.

Method used

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  • Method for preparing ordered ion conductor based on polyelectrolyte brush
  • Method for preparing ordered ion conductor based on polyelectrolyte brush
  • Method for preparing ordered ion conductor based on polyelectrolyte brush

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] A method for preparing an ordered ion conductor based on a polyelectrolyte brush, comprising the following steps:

[0041] (1) Use detergent to clean the oil on the surface of the 1cm×1cm titanium sheet, then put it in ethanol, ultrasonicate for 10min, then wash it with deionized water, put it in acetone and ultrasonically for 10min, and then wash it with deionized water Wash and dry the washed titanium sheet; take the washed titanium sheet as the anode, and the metal platinum sheet as the cathode, and the titanium sheet and the platinum sheet have the same area immersed in the electrolyte, and are in a parallel and facing direction; The mixed solution of ammonium fluoride, water and ethylene glycol is the electrolyte, wherein the mass concentration of ammonium fluoride is 0.3wt%, the volume of water is 2vol%, and the rest is ethylene glycol; the power supply used in the anodic oxidation process is constant Piezoelectric power supply, the voltage is 60V; the oxidation t...

Embodiment 2

[0053] This example is the same as Example 1 except that different electrolyte monomers are selected as polymerized monomers in step (3). The electrolyte monomer of this example is prepared by the following steps: first, 20 mL of vinylimidazole is added to 41 mL of deionized water, and then the mixed solution is added dropwise to 36 mL of tetrafluoroboric acid. During the dropping process, tetrafluoroboric acid is always In an ice-water bath environment, continue to react in the ice-water bath state for 24 hours after the dropwise addition; then put the above liquid in a vacuum oven and bake at 40°C for 48 hours to remove the water in the solution; then use ether to dissolve the above The sample was washed 3 times to wash away the unreacted vinylimidazole monomer; then baked in a vacuum oven at 25°C for 24 hours to obtain the required electrolyte monomer; then it was configured into a volume concentration of 10%, 15%, 20%, 25% ethanol solution.

[0054] Take 5mL of electrolyt...

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PUM

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Abstract

The invention discloses a method for preparing an ordered ion conductor based on a polyelectrolyte brush. The method includes the following steps that 1, an ordered ion conductor substrate material is prepared, wherein a highly-ordered double-through type titanium dioxide nano tube array is prepared through a two-time anodizing method; 2, a functional azo type initiator is anchored; and 3, the polyelectrolyte brush is grafted, wherein tubes in the titanium dioxide nano tube array are filled with monomer electrolytes through vacuum negative pressure, and free radical polymerization is conducted on the anchored initiator through in-situ initiation; and post-processing is conducted on a product obtained after a reaction, and a final product is obtained. The polyelectrolyte brush in the ion conductor is high in grafting density and of a one-dimensional ordered structure and performs higher ionic conduction efficiency.

Description

technical field [0001] The invention belongs to the field of new energy materials, and in particular relates to a method for preparing an ordered ion conductor based on a polyelectrolyte brush. Background technique [0002] Ionic conductors have a wide range of applications, and currently have large-scale applications in fuel cells, lithium-ion batteries, all-vanadium flow batteries, seawater or salt water purification, and industry. For now, commercially available ionic conductors have certain limitations, such as high manufacturing costs and low ion conductivity. In order to improve the ion conductivity of ionic conductors while reducing their manufacturing cost, researchers are working on a new type of ionic conductor with low cost and good performance. [0003] In previous studies, we have learned that materials with nanostructured morphology play a key role in ion conduction. while TiO 2 The nanotube array film has the following advantages: 1) The nanotubes are highl...

Claims

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Application Information

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IPC IPC(8): C25D11/26C08F292/00
Inventor 张海宁唐浩林袁定胜
Owner 广东南海普锐斯科技有限公司
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