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Ant-nest-imitating hydrated ionic liquid gel platform, and preparation method and application thereof

A technology of hydrated ions and liquid gels, applied in the manufacture of hybrid/electric double layer capacitors, hybrid capacitor electrolytes, etc., can solve the problems of low porosity, waste of three-dimensional network formation space, and limit the transmission efficiency of gel materials, etc., to achieve super High ionic conductivity, excellent ionic conductivity, and the effect of reducing energy loss

Active Publication Date: 2021-07-27
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Patent CN 112210041 A discloses a hydrated ionic liquid gel and its preparation method and application. The hydrated ionic liquid gel is prepared by the following method: when the gel is prepared by enzymatic gelation, the hydrated ionic liquid is used as a solvent, and the hydrated ionic liquid Ionic liquids contain anionic and cationic organic substances. Hydrated ionic liquids follow the Hoffmann ion effect and can be used as protective agents to stabilize the hydration layer of enzymes and have good biocompatibility. However, the three-dimensional pore structure of the hydrated ionic liquid gel is concentrated. Between 1-10 microns, the pores are small and the porosity is low, which limits the material transfer efficiency of the gel, resulting in an inability to achieve a higher level of ion conductivity
In addition, the hydrated ionic liquid gel wastes a lot of space formed by the three-dimensional network, making it impossible for deeper application expansion in the field of electrochemistry

Method used

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  • Ant-nest-imitating hydrated ionic liquid gel platform, and preparation method and application thereof
  • Ant-nest-imitating hydrated ionic liquid gel platform, and preparation method and application thereof
  • Ant-nest-imitating hydrated ionic liquid gel platform, and preparation method and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0070] 200mg acrylamide (AAm), 10mg propylene chondroitin sulfate (CSMA), 20mg NaHCO 3 and 10 μL 2,2-diethoxyacetophenone (DEAP) were added to 1000 μL hydrated ionic liquid (1-ethyl-3-methylimidazolium tetrafluoroborate ([EMIM][BF 4 ]): H 2 O=1:4), fully stirred until uniform. Then the solution was placed in a mold and placed under an ultraviolet lamp for 30 minutes to obtain a hydrated ionic liquid gel. Its compressive strength is 455.8KPa, which can withstand 90% of its own deformation; the tensile modulus is 9.9KPa, and the maximum tensile deformation is 1836.9%. Add redox substance hydroquinone (HQ) into 1 mol / L sulfuric acid solution, its mass fraction is 5%, and the solution is fully stirred at 40° C. until the solid is completely dissolved. Then under the condition of vigorous stirring, the newly prepared hydrated ionic liquid gel was immersed in the etching solution. After the generation of bubbles stopped, the etched hydrated ionic liquid gel was taken out, and the...

Embodiment 2

[0096] 200mg acrylamide (AAm), 10mg propylene chondroitin sulfate (CSMA), 20mg NaHCO 3 and 10 μL 2,2-diethoxyacetophenone (DEAP) were added to 1000 μL hydrated ionic liquid (1-ethyl-3-methylimidazolium tetrafluoroborate ([EMIM][BF 4 ]): H 2 O=2:3), fully stirred until uniform. The solution was then placed in a mold and placed under a UV lamp for 30 min. Add redox substance hydroquinone (HQ) into 1 mol / L sulfuric acid solution, its mass fraction is 5%, and the solution is fully stirred at 40° C. until the solid is completely dissolved. Then under the condition of vigorous stirring, the newly prepared hydrated ionic liquid gel was immersed in the etching solution. After the generation of bubbles stopped, the etched hydrated ionic liquid gel was taken out, and the liquid on the surface of the gel was wiped off with a sponge to obtain An ant nest-like hydrated ionic liquid gel platform.

Embodiment 3

[0098] 200mg acrylamide (AAm), 10mg propylene chondroitin sulfate (CSMA), 20mg NaHCO 3 and 10 μL 2,2-diethoxyacetophenone (DEAP) were added to 1000 μL hydrated ionic liquid (1-ethyl-3-methylimidazolium tetrafluoroborate ([EMIM][BF 4 ]): H 2 O=3:2), fully stirred until uniform. The solution was then placed in a mold and placed under a UV lamp for 30 min. Add redox substance hydroquinone (HQ) into 1 mol / L sulfuric acid solution, its mass fraction is 5%, and the solution is fully stirred at 40° C. until the solid is completely dissolved. Then under the condition of vigorous stirring, the newly prepared hydrated ionic liquid gel was immersed in the etching solution. After the generation of bubbles stopped, the etched hydrated ionic liquid gel was taken out, and the liquid on the surface of the gel was wiped off with a sponge to obtain An ant nest-like hydrated ionic liquid gel platform.

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Abstract

The invention relates to an ant-nest-imitating hydrated ionic liquid gel platform, and a preparation method and application thereof. The preparation method comprises the steps that hydrated ionic liquid and a biological cross-linking agent are mixed, a foaming agent is added, the mixture is stirred till the mixture is completely dissolved to form a uniform gel precursor solution, the obtained gel precursor solution is mixed with a monomer, gel formation is initiated by a photoinitiator to prepare hydrated ionic liquid gel, and sulfuric acid solutions containing different redox substances are used for etching the hydrated ionic liquid gel to prepare the ant-nest-imitating hydrated ionic liquid gel which is of an ant nest structure and is loaded with the redox substances. The preparation process is simple and efficient, the material is green and environment-friendly, and the prepared ant-nest-imitating hydrated ionic liquid gel platform has the storage capacity of redox substances and the rapid transfer capacity of ions and can be widely applied to flexible energy storage devices.

Description

technical field [0001] The invention relates to a gel material, in particular to an ant nest-imitating hydrated ionic liquid gel platform and a preparation method and application thereof. Background technique [0002] With the rapid development of various wearable electronic devices such as wearable sensors, artificial electronic skin, flexible electronic screens, and other implantable medical devices, flexible energy storage devices are becoming more and more important. Among them, flexible supercapacitors have attracted extensive attention of researchers due to their high power density and long service life. Electrolyte is a key component to realize the flexibility of supercapacitors, and gel polymer electrolyte (GPE) is one of the most promising electrolytes, because gel is an elastic cross-linked polymer network whose voids are filled with liquid, they The inevitable strain mismatch can be alleviated and ionic conductivity and proper support can be provided. However, e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F251/00C08F220/56C08F220/58C08F2/48C08J9/08C08L51/02H01G11/84H01G11/56
CPCC08F251/00C08F2/48C08J9/08H01G11/84H01G11/56C08J2203/02C08J2351/02C08F220/56C08F220/58
Inventor 尚英辉马梦莉丁凤霞王启刚
Owner TONGJI UNIV
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