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Preparation method of novel organic-inorganic composite anion proton exchange membrane

A proton exchange membrane and inorganic composite technology, applied in the field of organic-inorganic composite anion proton exchange membrane and its preparation, to achieve high commercial application value, improve service life, and high proton conductivity

Inactive Publication Date: 2021-02-05
邓伯涵
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, the most widely studied and widely used anion exchange membrane is the quaternary ammonium salt cationic polymer, but the quaternary ammonium salt cation is easily degraded by Hoffman elimination (E2) or nucleophilic substitution (SN2) reaction under strong alkali conditions. Since then, relevant researchers have proposed a variety of solutions through a lot of research, but there are still many problems to be solved

Method used

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  • Preparation method of novel organic-inorganic composite anion proton exchange membrane
  • Preparation method of novel organic-inorganic composite anion proton exchange membrane
  • Preparation method of novel organic-inorganic composite anion proton exchange membrane

Examples

Experimental program
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Effect test

Embodiment 1

[0026] To prepare a new type of organic-inorganic composite anion proton exchange membrane, the specific steps are as follows: first weigh 0.300g octaazidopropyl-POSS and 1.190g ethynyl cobaltocene, and add it to 60mL THF and 20mL H 2 Then add 0.528g of copper sulfate and 1.901g of L-sodium ascorbate to a three-necked flask of O at 0°C, react at room temperature for 24h, and evaporate the solvent to obtain octa(cobaltocene-based)-POSS, which is put into an oven for use. Then weigh 1g of polyether ether ketone and put it into a three-necked flask containing 15mL dimethyl sulfoxide, heat it to 60°C and stir vigorously for 30min, then weigh 0.3g of octa(cobaltocene)-POSS and put it into the three-necked flask at 60°C. Stir vigorously for 24 hours to obtain a clear transparent sol, pour the transparent sol into a polytetrafluoroethylene film tray and place it for 24 hours, then move it into a 90°C oven to dry for 24 hours, then raise the temperature to 120°C for 24 hours, take it ...

Embodiment 2

[0028] To prepare a new type of organic-inorganic composite anion proton exchange membrane, the specific steps are as follows: first weigh 0.410g octaazidopropyl-POSS and 1.626g ethynyl cobaltocene, and add it to 60mL THF and 20mL H 2 Then add 0.722g of copper sulfate and 2.598g of L-sodium ascorbate to a three-necked flask of O at 0°C, react at room temperature for 24h, and evaporate the solvent to obtain octa(cobaltocene-based)-POSS, which is put into an oven for use. Then weigh 1.2g polyimide and put it into a three-necked flask containing 18mL dimethyl sulfoxide, heat it to 60°C and stir vigorously for 30min, then weigh 0.48g octa(cobaltocene-based)-POSS and add it to the three-necked flask at 60 Stir vigorously at ℃ for 24 hours to obtain a clear transparent sol. Pour the transparent sol into a polytetrafluoroethylene film tray and place it for 24 hours, then move it into a 90℃ oven to dry for 24 hours, then raise the temperature to 120℃ and place it for 24 hours, take it...

Embodiment 3

[0030] Prepare a new type of organic-inorganic composite anion proton exchange membrane, the specific steps are as follows: first weigh 0.350g octaazidopropyl-POSS and 1.388g ethynyl cobaltocene, and add it to 70mL THF and 23mL H 2 Then add 0.616g of copper sulfate and 2.218g of L-sodium ascorbate to a three-necked flask of O at 0°C, react at room temperature for 24h, and then evaporate the solvent to obtain octa(cobaltocene-based)-POSS, which is put into an oven for use. Then weigh 1.2g polybenzimidazole and put it into a three-necked flask containing 18mL dimethyl sulfoxide, heat it to 60°C and stir vigorously for 30min, then weigh 0.63g octa(cobaltocene-based)-POSS and add it to the three-necked flask at 60 Stir vigorously at ℃ for 24 hours to obtain a clear transparent sol. Pour the transparent sol into a polytetrafluoroethylene film tray and place it for 24 hours, then move it into a 90℃ oven to dry for 24 hours, then raise the temperature to 120℃ and place it for 24 hour...

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Abstract

The invention relates to a preparation method of a proton exchange membrane for a fuel cell, and belongs to the technical field of energy materials. Modified octa(cobaltocenyl)-POSS is introduced intoa solution of functional polymer materials such as polyimide, polybenzimidazole, polyether-ether-ketone, polyether sulfone and the like, and the high-performance anion proton exchange membrane can beconveniently obtained through a solution casting method. The preparation method is short in process and simple to operate, and meanwhile, compared with a commercial anion proton exchange membrane, the exchange membrane prepared on the basis of the preparation method has high ionic conductivity, excellent alkaline functional group stability, high mechanical strength and low swelling property. Besides, POSS with good organic compatibility is introduced, and the organic-inorganic special structure of POSS is utilized, so that the formation of an effective micro-phase separation structure is promoted, the proton conductivity of the composite membrane is improved to a certain extent, and the composite membrane has a wide application prospect in the field of anion proton exchange membranes.

Description

technical field [0001] The invention belongs to the field of energy materials, and relates to an organic-inorganic composite anion proton exchange membrane containing octa(cobaltocene)-POSS and a preparation method thereof. Background technique [0002] Alkaline fuel cells (AFCs) have the advantages of high efficiency, the use of non-precious metal catalysts, and a wide range of fuel choices, while the anion proton exchange membrane (AEM) is the core component of the alkaline fuel cell system, and its performance is very important for alkaline fuel cells. Whether it can be commercialized plays a decisive role. It is a solid electrolyte composed of a polymer framework and covalently linked cations, which can selectively transport anions such as hydroxide. Research in this area has always been the industry and A hotspot tracked by academia. At present, the most studied and widely used anion exchange membrane is the quaternary ammonium salt cationic polymer, but the quaternary...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J5/22C08L61/16C08L79/08C08L83/08C08L79/04C08G77/398H01M8/083
CPCC08G77/398C08J5/2275C08J2361/16C08J2379/04C08J2379/08C08J2483/08H01M8/083Y02E60/50
Inventor 邓伯涵
Owner 邓伯涵
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