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High-efficiency high-temperature-resistant proton conduction material and preparation method thereof

A technology of proton conduction and energy resistance, which is applied in the field of high-efficiency, high-temperature-resistant proton conduction materials and their preparation, and can solve the problems of expensive Nafion membranes, limited thermal stability, and loss of functional groups

Pending Publication Date: 2022-04-12
沈金国
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, Nafion membrane is expensive, has limited thermal stability, and when used at high temperature, it will cause the loss of grafted functional groups; because it is a high-fluorine polymer, the recycling and disposal of materials are difficult, which brings environmental burdens

Method used

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  • High-efficiency high-temperature-resistant proton conduction material and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0030] A method for preparing a high-efficiency high-temperature-resistant proton-conducting material, the method for preparing a high-efficiency high-temperature-resistant proton-conducting material includes the following preparation steps:

[0031](1) At 24°C, mix (trityloxy)trichlorosilane and malonic acid at a mass ratio of 1:2.5, stir at 1200r / min for 1h, then stand for 24h, and then react at 1°C / min Raise the temperature to 108°C, rectify at 0.08MPa for 22h, and prepare trimalonyl (trityloxy)silane; at 6°C and nitrogen protection, 4,5-diamino-o-chloro-sulfurized benzyl Acyl chloride, aluminum trichloride, and benzene were mixed according to the mass ratio of 1:1.4:17, and stirred and refluxed at 600r / min for 40min to prepare a 4,5-diamino-o-chlorosulfurized benzoyl chloride solution; under nitrogen protection, the three Mix malonyl (trityloxy) silane and benzene at a mass ratio of 1:8, put it in a 98°C oil bath, stir and reflux at 600r / min for 40min, then cool down to 6°...

Embodiment 2

[0034] A method for preparing a high-efficiency high-temperature-resistant proton-conducting material, the method for preparing a high-efficiency high-temperature-resistant proton-conducting material includes the following preparation steps:

[0035] (1) At 25°C, mix (trityloxy)trichlorosilane and malonic acid at a mass ratio of 1:3, stir at 1300r / min for 1.5h, then stand for 25h, and then react at 2°C / min Min was raised to 110°C, and rectified at 0.085MPa for 24 hours to prepare trimalonyl (tritylmethoxy)silane; at 6.5°C and under the protection of nitrogen, 4,5-diamino-o-chlorosulfurized benzene Formyl chloride, aluminum trichloride, and benzene were mixed according to the mass ratio of 1:1.6:17.5, stirred and refluxed at 700r / min for 50min, and 4,5-diamino-o-chlorosulfurized benzoyl chloride solution was prepared; under nitrogen protection, the Mix trimalonyl (trityloxy) silane and benzene at a mass ratio of 1:10, put it in an oil bath at 100°C, stir and reflux at 700r / min ...

Embodiment 3

[0038] A method for preparing a high-efficiency high-temperature-resistant proton-conducting material, the method for preparing a high-efficiency high-temperature-resistant proton-conducting material includes the following preparation steps:

[0039] (1) At 26°C, mix (trityloxy)trichlorosilane and malonic acid at a mass ratio of 1:3.5, stir at 1400r / min for 2h, then stand for 26h, and then react at 3°C / min Raise the temperature to 112°C, rectify at 0.09MPa for 26h, and prepare trimalonyl (tritylmethoxy)silane; at 7°C and under the protection of nitrogen, 4,5-diamino-o-chlorinated benzylsulfide Acyl chloride, aluminum trichloride, and benzene were mixed according to the mass ratio of 1:1.8:18, and stirred and refluxed at 800r / min for 60min to prepare a 4,5-diamino-o-chlorosulfurized benzoyl chloride solution; under nitrogen protection, the three Mix malonyl (trityloxy) silane and benzene at a mass ratio of 1:12, put it in an oil bath at 102°C, stir and reflux at 800r / min for 60...

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Abstract

The invention discloses a high-efficiency high-temperature-resistant proton conduction material and a preparation method thereof, and relates to the technical field of proton conduction materials. The preparation method comprises the following steps: firstly, mixing trimalonic acid (triphenylmethoxy) silane and 4, 5-diamino-o-chloro-sulfurized benzoyl chloride to form a thioxanthone microporous polymer, and preparing high-temperature-resistant nano gel particles; the preparation method comprises the following steps: preparing nano gel particles, mixing tri-o-aminobenzoquinonyl benzene, 2-sulfydryl-3-carbonyl-4-nitrobutanol and the nano gel particles to form a benzopyrrole compound, forming hyperbranched amide through a photosynthesis-assisted ultrasonic process, and stably embedding the nano gel particles in a cavity of the hyperbranched amide to obtain the hyperbranched polymer. And the density of sulfonate ions in the mass transfer channel is increased during use, so that the prepared high-efficiency high-temperature-resistant proton conduction material has good high temperature resistance, tensile strength, conductivity and proton conductivity.

Description

technical field [0001] The invention relates to the technical field of proton conduction materials, in particular to a high-efficiency high-temperature-resistant proton conduction material and a preparation method thereof. Background technique [0002] After human beings entered the modern society, the natural energy such as oil, coal and natural gas was over-consumed, so that it was gradually exhausted. At the same time, countries all over the world have gradually realized the importance of sustainable development and environmental protection. As a clean, efficient and safe green new energy, fuel cells have shown broad and attractive market development prospects. [0003] Solid-state proton-conducting materials play an indispensable role in fuel cells as electrolyte materials for fuel cells. Currently, the proton-conducting materials on the market are mainly Nafion membrane, which has high proton conductivity and certain chemical and mechanical stability, and is widely use...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G83/00C08G69/42H01M8/10
CPCH01M8/1018H01M8/1044H01M8/1067H01M8/1069C08G83/006Y02E60/50
Inventor 沈金国
Owner 沈金国
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