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Organic nano-composite anion exchange membrane and preparation method therefor and application thereof

An anion exchange membrane and nanocomposite technology, applied in the field of organic nanocomposite anion exchange membrane and its preparation, to achieve the effect of high conductivity and good mechanical stability

Active Publication Date: 2016-01-13
ZHENGZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The use of organic monomers to prepare uniform nanospheres and surface functionalization filled into polymer matrices to prepare organic nanocomposite basic anion exchange membranes remains to be explored

Method used

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  • Organic nano-composite anion exchange membrane and preparation method therefor and application thereof
  • Organic nano-composite anion exchange membrane and preparation method therefor and application thereof
  • Organic nano-composite anion exchange membrane and preparation method therefor and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0032] Disperse 0.6mL of N-vinylimidazole, 0.6mL of ethylene glycol dimethacrylate and 0.018g of azobisisobutyronitrile into 80mL of acetonitrile, heat to reflux at 82°C, and centrifuge and wash the obtained product with acetonitrile for 2 times, and then centrifuged and washed once with absolute ethanol to obtain imidazole nanospheres.

[0033] Disperse 0.6 g of prepared imidazole nanospheres and a quaternization reagent (2.40 mL of ethyl chloroformate, 1.32 mL of n-chlorobutane, and 1.48 mL of benzyl chloride) into absolute ethanol (120 mL), Heated to reflux for 20 h at 70°C under nitrogen protection. The solution after the reaction was centrifuged and washed 3 times with absolute ethanol, and dried in a vacuum oven for 24 hours to obtain E-QPVI, C 4 -QPVI, B-QPVI quaternized nano-microspheres.

[0034] During the preparation of the organic nanocomposite membrane, quaternized imidazole nanospheres (0.048 g) were added to 10 mL of deionized water, and stirred ultrasonically...

Embodiment 2

[0039] Disperse 0.6mL of N-vinylimidazole, 0.6mL of ethylene glycol dimethacrylate and 0.018g of azobisisobutyronitrile into 80mL of acetonitrile, heat to reflux at 82°C, and centrifuge the obtained product with acetonitrile for 2 times, and then centrifuged and washed once with absolute ethanol to obtain imidazole nanospheres.

[0040] Disperse 0.6 g of prepared imidazole nanospheres and 2.4 mL of ethyl chloroformate into 120 mL of absolute ethanol, and heat to reflux for 20 h at 70°C under nitrogen protection. The solution after the reaction was centrifuged and washed 3 times with absolute ethanol, and dried in a vacuum oven for 24 hours to obtain E-QPVI quaternized imidazole nanospheres.

[0041] During the preparation process of the organic nanocomposite membrane, 0.024 g of E-QPVI was added into 10 mL of deionized water, and stirred ultrasonically (ultrasonic time was greater than 4 h). Add 1.2 g of chitosan to 45 mL of deionized water, add 1 mL of glacial acetic acid to...

Embodiment 3

[0045] Disperse 0.6mL of N-vinylimidazole, 0.6mL of ethylene glycol dimethacrylate and 0.018g of azobisisobutyronitrile into 80mL of acetonitrile, heat to reflux at 82°C, and centrifuge the obtained product with acetonitrile for 2 times, and then centrifuged and washed once with absolute ethanol to obtain imidazole nanospheres.

[0046] Disperse 0.6 g of prepared imidazole nanospheres and 2.4 mL of ethyl chloroformate into 120 mL of absolute ethanol, and heat to reflux for 20 h at 70°C under nitrogen protection. The solution after the reaction was centrifuged and washed 3 times with absolute ethanol, and dried in a vacuum oven for 24 hours to obtain E-QPVI quaternized imidazole nanospheres.

[0047] During the preparation of the organic nanocomposite membrane, E-QPVI (0.72 g) was added to 10 mL of deionized water and stirred ultrasonically (ultrasonic time was greater than 4 h). Add 1.2 g of chitosan to 45 mL of deionized water, add 1 mL of glacial acetic acid to the chitosan...

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Abstract

The present invention belongs to the technical field of alkaline anion exchange membrane fuel cells, and particularly relates to an organic nano-composite anion exchange membrane and a preparation method therefor and an application thereof. The exchange membrane is a composite anion exchange membrane of chitosan and quaternized imidazole microspheres, wherein the mass ratio of the chitosan and the quaternized imidazole microspheres in the membrane is 100:(2-10). The nano-composite anion exchange membrane provided by the present invention exhibits performance which is higher than that of a membrane free of chitosan.

Description

technical field [0001] The invention belongs to the technical field of alkaline anion exchange membrane fuel cells, and in particular relates to an organic nanocomposite anion exchange membrane and its preparation method and application. Background technique [0002] With the development of economy, the problems of energy crisis and environmental pollution have become increasingly prominent. A fuel cell is a device that converts chemical energy in fuel into electrical energy, and is regarded as one of the most promising clean energy conversion technologies. Compared with proton exchange membrane fuel cells, alkaline anion exchange membrane fuel cells have the advantages of lower production costs (non-precious metal catalytic electrodes can be used, and the price of ion exchange membranes is relatively low), lower fuel permeability, and convenient water and heat management. It has broad application prospects. The alkaline anion exchange membrane is the core component of the...

Claims

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Application Information

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IPC IPC(8): C08L5/08C08L39/04C08J3/24C08J5/22C08J7/12C08F226/06C08F222/14C08F8/44H01M2/16
CPCY02E60/10
Inventor 王景涛史本兵武文佳张浩勤刘金盾
Owner ZHENGZHOU UNIV
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