A kind of preparation method of composite proton exchange membrane
A proton exchange membrane and composite technology, applied in the field of proton exchange membranes, can solve the problems of high price, high methanol permeability coefficient, the balance of proton conductivity and mechanical stability restricting development, etc., to achieve mechanical stability and solvent resistance performance improvement, outstanding intrinsic electrical conductivity, and excellent reaction catalytic effect
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Embodiment 1
[0017] (1) Preparation of gold-palladium-doped polyaniline nanocomposites: take 0.0035mol HAuCl 4 It was mixed with 0.0033mol of palladium dichloride and added to 50ml of double distilled water, then 160mg of polyvinylpyrrolidone was added, and the mixture was stirred at room temperature for 20min. Slowly add 22ml of 0.1g / ml NaBH 4 , continued stirring at room temperature for 2.5 h, the solution turned reddish brown indicating the formation of gold-palladium nanoparticles. Dissolve 0.5 ml of 0.1 mol / L secondary distilled aniline in 0.5 ml of 0.1 mol / L sulfuric acid aqueous solution, stir at room temperature for 10 min, and then add it to the gold-palladium colloidal solution and continue stirring for 3 h. Slowly add 9 ml of 0.1 mol / L ammonium persulfate dropwise, and continue to stir for 8 h. This mixture was stably stored in the refrigerator at 0°C for 8h. The obtained precipitate was filtered with double distilled water and methanol, and then dried in a vacuum drying oven...
Embodiment 2
[0020] (1) Preparation of gold-palladium-doped polyaniline nanocomposites: take 0.0033mol HAuCl 4 It was mixed with 0.0033mol palladium dichloride and added to 50ml of double distilled water, then 151mg of polyvinylpyrrolidone was added, and the mixture was stirred at room temperature for 30min. Slowly add 20ml of 0.1g / ml NaBH 4 , continued to stir at room temperature for 2 h, the solution turned reddish brown indicating the formation of gold-palladium nanoparticles. Dissolve 0.6 ml of secondary distilled aniline 0.1 mol / L in 0.6 ml of 0.1 mol / L sulfuric acid aqueous solution, and stir at room temperature for 10 min. Then added to the gold-palladium colloidal solution and continued stirring for 2h. Slowly add 10 ml of 0.1 mol / L ammonium persulfate dropwise, and continue to stir for 6 h. This mixture was stably stored in the refrigerator at 0°C for 12h. The obtained precipitate was filtered with double distilled water and methanol, and then dried in a vacuum drying oven at ...
Embodiment 3
[0023] (1) Preparation of gold-palladium-doped polyaniline nanocomposites: take 0.0034mol HAuCl 4 It was mixed with 0.0033mol palladium dichloride and added to 60ml of double distilled water, then 170mg of polyvinylpyrrolidone was added, and the mixture was stirred at room temperature for 30min. Slowly add 20ml of 0.1g / ml NaBH 4 , continued stirring at room temperature for 1 h, the solution turned reddish brown indicating the formation of gold-palladium nanoparticles. Dissolve 0.5 ml of secondary distilled aniline 0.1 mol / L in 0.5 ml of 0.1 mol / L sulfuric acid aqueous solution, and stir at room temperature for 10 min. Then added to the gold-palladium colloidal solution and continued stirring for 3h. 9.5 ml of 0.1 mol / L ammonium persulfate was slowly added dropwise, and stirring was continued for 7 h. This mixture was stably stored in the refrigerator at 0°C for 12h. The obtained precipitate was filtered with double distilled water and methanol, and then dried in a vacuum d...
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