An organic-inorganic composite membrane based on carboxyl-containing sulfonated polyaryletherketone sulfone and im-mof-801 and its preparation method

A technology of sulfonated polyaryletherketone sulfone and sulfonated polyaryletherketone, which is applied in the field of organic-inorganic composite membranes and its preparation, can solve problems such as poor compatibility, affecting the performance of proton exchange membranes, and lack of proton conductivity

Active Publication Date: 2021-10-26
CHANGCHUN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the disadvantages of inorganic materials, such as poor solubility, poor compatibility, easy to form agglomeration, and no proton conductivity, seriously affect the performance of proton exchange membranes and limit the further application of organic-inorganic composite membranes.

Method used

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  • An organic-inorganic composite membrane based on carboxyl-containing sulfonated polyaryletherketone sulfone and im-mof-801 and its preparation method
  • An organic-inorganic composite membrane based on carboxyl-containing sulfonated polyaryletherketone sulfone and im-mof-801 and its preparation method
  • An organic-inorganic composite membrane based on carboxyl-containing sulfonated polyaryletherketone sulfone and im-mof-801 and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A method for preparing an organic-inorganic proton exchange composite membrane based on carboxyl-containing sulfonated polyaryletherketone sulfone polymer and Im-MOF-801, the specific steps are as follows:

[0032] (1) Weigh 0.5g of C-SPAEKS polymer into a beaker, add 10ml of NMP solvent, stir at room temperature to dissolve the polymer, and obtain a uniform solution. Among them, C-SPAEKS represents carboxyl-containing sulfonated polyarylether ketone sulfone; NMP represents N-methyl-2-pyrrolidone.

[0033] (2) Weigh 0.01g of Im-MOF-801 powder and add it to the homogeneous solution in step (1). The obtained mixed liquid was ultrasonically dispersed for 4 hours, and then stirred for 48 hours to obtain a film-forming liquid. Among them, Im-MOF-801 represents a metal organic framework material containing a coordinated imidazole; the mass fraction of Im-MOF-801 in the C-SPAEKS matrix in the film-forming solution is 2wt%.

[0034] (3) Cast the film-forming solution obtained...

Embodiment 2

[0045] (1) Weigh 0.5 g of C-SPAEKS polymer into a beaker, add 10 ml of NMP solvent, stir at room temperature to dissolve the polymer, and obtain a uniform solution. Among them, C-SPAEKS represents carboxyl-containing sulfonated polyarylether ketone sulfone; NMP represents N-methyl-2-pyrrolidone.

[0046] (2) Weigh 0.02g of Im-MOF-801 powder and add it to the homogeneous solution in step (1). The obtained mixed liquid was ultrasonically dispersed for 4 hours, and then stirred for 60 hours to obtain a film-forming liquid. Among them, Im-MOF-801 represents the metal organic framework material containing coordination imidazole; the mass fraction of Im-MOF-801 in the C-SPAEKS matrix in the film-forming solution is 4wt%.

[0047] (3) Cast the film-forming solution obtained in step (2) onto a clean glass plate, dry it at 80°C for 48 hours, cool it down to room temperature naturally, and remove the film in water to obtain C-SPAEKS / Im-MOF-801 Composite film.

[0048] (4) Soak the C-...

Embodiment 3

[0051] (1) Weigh 0.5 g of C-SPAEKS polymer into a beaker, add 10 ml of NMP solvent, stir at room temperature to dissolve the polymer, and obtain a uniform solution. Among them, C-SPAEKS represents carboxyl-containing sulfonated polyarylether ketone sulfone; NMP represents N-methyl-2-pyrrolidone.

[0052] (2) Weigh 0.03g of Im-MOF-801 powder and add it to the homogeneous solution in step (1). The obtained mixed liquid was ultrasonically dispersed for 4 hours, and then stirred for 72 hours to obtain a film-forming liquid. Among them, Im-MOF-801 represents a metal organic framework material containing a coordinated imidazole; the mass fraction of Im-MOF-801 in the C-SPAEKS matrix in the film-forming solution is 6 wt%.

[0053] (3) Cast the film-forming solution obtained in step (2) onto a clean glass plate, dry it at 80°C for 48 hours, cool it down to room temperature naturally, and remove the film in water to obtain C-SPAEKS / Im-MOF-801 Composite film.

[0054] (4) Soak the C-...

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Abstract

The invention discloses an organic-inorganic composite membrane based on carboxyl-containing sulfonated polyaryletherketone sulfone and Im-MOF-801 and a preparation method thereof, belonging to the fields of polymer chemistry and proton exchange membrane fuel cells. The exchange composite membrane Carboxyl-containing sulfonated polyaryletherketone sulfone is used as the matrix, and Im-MOF-801, a metal-organic framework containing coordinated imidazole, is used as the filler. The Im-MOF-801 filler contains carboxyl functional groups, and there is Hydrogen bonding, prepared by solution blending method. The method provided by the invention is to prepare sulfonated polyaryletherketone sulfone containing carboxyl group by nucleophilic polycondensation reaction, prepare Im-MOF-801 containing coordinated imidazole by solvothermal reaction, and then prepare an organic-mof-801 by solution blending method. Inorganic composite proton exchange membrane. The proton conductivity of the organic-inorganic composite proton exchange membrane of the present invention can reach up to 0.128Scm at 90°C ‑1 .

Description

technical field [0001] The invention belongs to the fields of polymer chemistry and proton exchange membrane fuel cells, and specifically relates to an organic-inorganic composite membrane based on carboxyl-containing sulfonated polyaryletherketone sulfone and Im-MOF-801 and a preparation method thereof. Background technique [0002] Proton exchange membrane fuel cell (PEMFC) is a clean and environmentally friendly energy device with high energy density. Proton exchange membrane (PEM) is the core component of proton exchange membrane fuel cells, and its performance has an important impact on the service life of proton exchange membrane fuel cells. [0003] The polyaryletherketone sulfone modified by sulfonation has the ability to transport protons, and has received extensive research and attention in the field of fuel cell proton exchange membranes. The proton conductivity of sulfonated poly(aryl ether ketone sulfone) is mainly affected by the sulfonic acid group, and it ha...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M8/1039H01M8/1048H01M8/1069H01M8/1086C08G75/23
CPCC08G75/23H01M8/1039H01M8/1048H01M8/1069H01M8/1086H01M2008/1095Y02E60/50
Inventor 徐晶美张振国杨凯杨旭东王哲任佳会孟令鑫赵鹏云
Owner CHANGCHUN UNIV OF TECH
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