Unlock instant, AI-driven research and patent intelligence for your innovation.

Preparation method of a novel composite proton exchange membrane material

A proton exchange membrane and composite membrane technology, applied in the field of preparation of proton exchange membrane materials, can solve the problems of high price, limited promotion, high methanol leakage rate, etc., and achieve the effect of reducing methanol permeability and improving stability

Active Publication Date: 2022-03-15
ANHUI NORMAL UNIV
View PDF10 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although Nafion membrane has so many advantages, its high price and high methanol leakage limit its further promotion.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Preparation method of a novel composite proton exchange membrane material
  • Preparation method of a novel composite proton exchange membrane material
  • Preparation method of a novel composite proton exchange membrane material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] A preparation method of a novel composite proton exchange membrane material, comprising the following steps in sequence: a) preparation step of sulfonated polyphenylene ether; b) preparation step of chloromethylated sulfonated polyphenylene ether; c) azidosulfonated polyphenylene ether Ether preparation step; d) 6-toluenesulfonyl-β-cyclodextrin preparation step; e) alkynylated β-cyclodextrin preparation step; f) alkynylated β-cyclodextrin@graphene oxide preparation step; g) Proton composite membrane material preparation steps;

[0050] said

[0051] a) Preparation steps of sulfonated polyphenylene ether:

[0052] Under the condition of mechanical stirring, completely dissolve 50g PPO (number average molecular weight 2w~1000w) in 500mL CHCl 3 Add 50ml of HSO dropwise 3 Cl and 100gSi(CH 3 ) 3 Cl. at 35°CN 2 After reacting under the atmosphere for 12h, add 200g CH 3 ONa, continue to react for 1h until white particles appear. The particles were alternately washed t...

Embodiment 2

[0072] A preparation method of a novel composite proton exchange membrane material, comprising the following steps in sequence: a) preparation step of sulfonated polyphenylene ether; b) preparation step of chloromethylated sulfonated polyphenylene ether; c) azidosulfonated polyphenylene ether Ether preparation step; d) 6-toluenesulfonyl-β-cyclodextrin preparation step; e) alkynylated β-cyclodextrin preparation step; f) alkynylated β-cyclodextrin@graphene oxide preparation step; g) Proton composite membrane material preparation steps;

[0073] said

[0074] a) Preparation steps of sulfonated polyphenylene ether:

[0075] Under the condition of mechanical stirring, completely dissolve 50g PPO (number average molecular weight 2w~1000w) in 500mL CHCl 3 Add 50ml of HSO dropwise 3 Cl and 150gSi(CH 3 ) 3 Cl. at 35°CN 2 After reacting under the atmosphere for 12h, add 250g CH 3 ONa, continue to react for 1h until white particles appear. The particles were alternately washed t...

Embodiment 3

[0089] A preparation method of a novel composite proton exchange membrane material, comprising the following steps in sequence: a) preparation step of sulfonated polyphenylene ether; b) preparation step of chloromethylated sulfonated polyphenylene ether; c) azidosulfonated polyphenylene ether Ether preparation step; d) 6-toluenesulfonyl-β-cyclodextrin preparation step; e) alkynylated β-cyclodextrin preparation step; f) alkynylated β-cyclodextrin@graphene oxide preparation step; g) Proton composite membrane material preparation steps;

[0090] said

[0091] a) Preparation steps of sulfonated polyphenylene ether:

[0092] Under the condition of mechanical stirring, completely dissolve 50g PPO (number average molecular weight 2w~1000w) in 500mL CHCl 3 Add 100ml of HSO dropwise 3 Cl and 150gSi(CH 3 ) 3 Cl. at 35°CN 2 After reacting under the atmosphere for 12h, add 300g CH 3 ONa, continue to react for 1h until white particles appear. The particles were alternately washed ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a preparation method of a novel composite proton exchange membrane material, which comprises the following steps in sequence: a) a preparation step of sulfonated polyphenylene ether; b) a preparation step of chloromethylated sulfonated polyphenylene ether; c) an azide group Preparation steps of sulfonated polyphenylene ether; d) Preparation steps of 6‑p-toluenesulfonyl‑β cyclodextrin; e) Preparation steps of alkynylated β cyclodextrin; f) Preparation of alkynylated β cyclodextrin@graphene oxide Step; g) preparation step of proton composite membrane material. Compared with the existing SPPO membrane, the present invention improves the proton conductivity by 1-1.5 times at a high temperature of 80 degrees, reduces the methanol permeability by more than 150 times, and significantly improves the stability; compared with the existing nafion membrane, The methanol permeability was reduced by more than 20 times, and the stability was also significantly improved.

Description

technical field [0001] The invention belongs to a preparation method of a proton exchange membrane material, in particular to a preparation method of a proton exchange membrane material used for a fuel cell. Background technique [0002] Fuel cells have the advantages of zero emission, environmental friendliness, high energy conversion efficiency, good durability, and high specific energy. As the core component of proton exchange membrane, the improvement of its comprehensive performance has always been a difficult problem for people to tackle. At present, the Nafion series membranes of DuPont Company of the United States, the XUS-B204 membranes of Dow Chemical Company of the United States, the Aciplex membranes of Asahi Kasei Corporation of Japan, etc. have been industrialized. Among them, the Nafion series of DuPont Company has been promoted most successfully and has been widely used at home and abroad. . Although Nafion membrane has so many advantages, its high price an...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H01M8/1072H01M8/1041H01M8/1088C08G75/029C08B37/16
CPCH01M8/1072H01M8/1088H01M8/1055C08G75/029C08B37/0012Y02E60/50
Inventor 宇海银荣菁秋马忠香顾家山
Owner ANHUI NORMAL UNIV