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A kind of imitation ant nest hydration ionic liquid gel platform and its preparation method and application

A technology of hydrated ions and liquid gels, which is applied in the manufacture of hybrid/electric double layer capacitors, hybrid capacitor electrolytes, etc., can solve the problems of wasting three-dimensional network formation space, low porosity, and limiting the transmission efficiency of gel materials, etc., and achieve excellent Ionic conductivity, ultra-high ionic conductivity, and the effect of reducing energy loss

Active Publication Date: 2022-02-18
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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  • A kind of imitation ant nest hydration ionic liquid gel platform and its preparation method and application
  • A kind of imitation ant nest hydration ionic liquid gel platform and its preparation method and application
  • A kind of imitation ant nest hydration ionic liquid gel platform and its preparation method and application

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Effect test

Embodiment 1

[0070] 200mg Acrylamide (AAm), 10mg Acrylated Chondroitin Sulfate (CSMA), 20mg NaHCO 3 and 10 μL of 2,2-diethoxyacetophenone (DEAP) were added to 1000 μL of hydrated ionic liquid (1-ethyl-3-methylimidazolium tetrafluoroborate ([EMIM][BF]) 4 ]): H 2 O=1:4), stir well until uniform. Subsequently, the solution was placed in a mold and placed under an ultraviolet lamp for 30 min 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%. The redox substance hydroquinone (HQ) was added to the 1 mol / L sulfuric acid solution, and its mass fraction was 5%, and the solution was fully stirred at 40° C. until the solid was completely dissolved. Then, the newly prepared hydrated ionic liquid gel was immersed in the etching solution under vigorous stirring. After the bubbles stopped generating, the etched hydrated ionic liquid gel was taken out,...

Embodiment 2

[0096] 200mg Acrylamide (AAm), 10mg Acrylated Chondroitin Sulfate (CSMA), 20mg NaHCO 3 and 10 μL of 2,2-diethoxyacetophenone (DEAP) were added to 1000 μL of hydrated ionic liquid (1-ethyl-3-methylimidazolium tetrafluoroborate ([EMIM][BF]) 4 ]): H 2 O=2:3), fully stir until uniform. The solution was then placed in a mold and placed under UV light for 30 min. The redox substance hydroquinone (HQ) was added to the 1 mol / L sulfuric acid solution, and its mass fraction was 5%, and the solution was fully stirred at 40° C. until the solid was completely dissolved. Then, the newly prepared hydrated ionic liquid gel was immersed in the etching solution under vigorous stirring. After the bubbles stopped generating, 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 Acrylated Chondroitin Sulfate (CSMA), 20mg NaHCO 3 and 10 μL of 2,2-diethoxyacetophenone (DEAP) were added to 1000 μL of hydrated ionic liquid (1-ethyl-3-methylimidazolium tetrafluoroborate ([EMIM][BF]) 4 ]): H 2 O=3:2), fully stir until uniform. The solution was then placed in a mold and placed under UV light for 30 min. The redox substance hydroquinone (HQ) was added to the 1 mol / L sulfuric acid solution, and its mass fraction was 5%, and the solution was fully stirred at 40° C. until the solid was completely dissolved. Then, the newly prepared hydrated ionic liquid gel was immersed in the etching solution under vigorous stirring. After the bubbles stopped generating, 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 a hydration ionic liquid gel platform imitating ant nests and its preparation method and application. The preparation method is: mixing hydration ionic liquid and biological cross-linking agent, adding foaming agent, and stirring until completely dissolved to form a uniform gel Precursor solution, the obtained gel precursor solution is mixed with the monomer, and the gelation is initiated by a photoinitiator to prepare a hydrated ionic liquid gel, and the hydrated ionic liquid gel is etched with a sulfuric acid solution containing different redox substances to form a hydrated ionic liquid gel. Ant nest-like hydrated ionic liquid gel loaded with redox substances and ant nest structure. The preparation process of the present invention is simple and efficient, and the materials are green and environmentally friendly. The prepared imitation ant nest hydrated ionic liquid gel platform has the storage capacity of redox substances and the rapid transfer capacity of ions, and can be widely used in flexible energy storage devices.

Description

technical field [0001] The invention relates to a gel material, in particular to an ant nest-like 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 skins, flexible electronic screens, and other implantable medical devices, flexible energy storage devices have become increasingly important. Among them, flexible supercapacitors have attracted extensive attention of researchers due to their high power density and long service life. Electrolytes are key components to achieve flexibility in supercapacitors, and gel polymer electrolytes (GPEs) are one of the most promising electrolytes because gels are elastic cross-linked polymer networks with liquid-filled voids, and they are The inevitable strain mismatch can be alleviated, and ionic conductivity and proper support can be provided. However, existing ...

Claims

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Application Information

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