Ternary doping modified SPEEK proton exchange membrane and preparation method
A technology of proton exchange membrane and exchange membrane, which is applied in the direction of chemical instruments and methods, membrane technology, electrical components, etc., can solve the problems of limiting the application of perfluorosulfonic acid membrane and the decline of proton conductivity, so as to improve the comprehensive performance and improve the proton The effect of conductivity
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Embodiment 1
[0026] Embodiment one: the composition formula and preparation process of the present embodiment are as follows:
[0027] 1. Formulation
[0028] A. Composite membrane matrix material: SPEEK material with a sulfonation degree of 40%-80%, and a mass percentage of 80%-98.5%.
[0029] B. Ternary doped solid or liquid: ionic liquid, nano-yttrium oxide and H 3 PW 12 o 40 , the mass percentage is 1.5%-20%.
[0030] 2. Synthesis of SPEEK material with a sulfonation degree of 40%-80%: Add 10g of PEEK powder and 200ml of concentrated sulfuric acid into a 250mL three-neck flask, and mechanically stir the reaction at 60°C for 6h. After the reaction solution is cooled to room temperature, put Pour the reaction solution into 4.5L of ice-water mixture to precipitate the product, wash it with a large amount of deionized water for 5-10 times, and test the product to be neutral with pH test paper. Dry at 100°C for 24 hours and in vacuum at 100°C for 4 hours.
[0031] 3. Pretreatment of t...
Embodiment 2
[0035] Embodiment two: the composition formula and the preparation process of the present embodiment are as follows:
[0036] 1. Formulation
[0037] A. Composite membrane matrix material: SPEEK material with a sulfonation degree of 40%-80%, and a mass percentage of 80%-98.5%.
[0038] B. Ternary doped solid or liquid: ionic liquid, nano-yttrium oxide and H 3 PW 12 o 40 , the mass percentage is 1.5%-20%.
[0039] 2. Synthesis of SPEEK material with a sulfonation degree of 40%-80%: Add 10g of PEEK powder and 200ml of concentrated sulfuric acid into a 250mL three-neck flask, and mechanically stir the reaction at 60°C for 6h. After the reaction solution is cooled to room temperature, put Pour the reaction solution into 4.5L of ice-water mixture to precipitate the product, wash it with a large amount of deionized water for 5-10 times, and test the product to be neutral with pH test paper. Dry at 100°C for 24 hours and in vacuum at 100°C for 4 hours.
[0040] 3. Pretreatment ...
Embodiment 3
[0044] Embodiment three: the composition formula and the preparation process of the present embodiment are as follows:
[0045] 1. Formulation
[0046] A. Composite membrane matrix material: SPEEK material with a sulfonation degree of 40%-80%, and a mass percentage of 80%-98.5%.
[0047] B. Ternary doped solid or liquid: ionic liquid, nano-yttrium oxide and H 3 PW 12 o 40 , the mass percentage is 1.5%-20%.
[0048] 2. Synthesis of SPEEK material with a sulfonation degree of 40%-80%: Add 10g of PEEK powder and 200ml of concentrated sulfuric acid into a 250mL three-neck flask, and mechanically stir the reaction at 60°C for 6h. After the reaction solution is cooled to room temperature, put Pour the reaction solution into 4.5L of ice-water mixture to precipitate the product, wash it with a large amount of deionized water for 5-10 times, and test the product to be neutral with pH test paper. Dry at 100°C for 24 hours and in vacuum at 100°C for 4 hours.
[0049] 3. Pretreatmen...
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