Polyaniline-sulfonated graphene composite electrode material and preparation method thereof
A technology of sulfonated graphene and composite electrodes, which is applied to the manufacture of hybrid capacitor electrodes and hybrid/electric double-layer capacitors, can solve problems such as unfavorable clean production and unfavorable aniline monomers fully doping, etc., to ensure charge delocalization. degree, low preparation cost, and the effect of increasing doping degree
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[0024] Example 1
[0025] 279mg of sulfonated graphene was dissolved in 10mL of deionized water, and ultrasonically dispersed for 3h in an ice bath using an ultrasonic cell pulverizer (200W) to make it evenly dispersed; 279mg of aniline monomer was added to the above solution, and then continued Sonicated for 1 h, and then stirred at constant speed for 12 h in an ice bath. The aqueous solution of ammonium persulfate was added dropwise, and the dropwise addition was completed within 0.5 h, and then the reaction was continued for 4 h. After the polymerization, the product was repeatedly washed with deionized water and ethanol until the color of the filtrate was colorless to remove residual monomers and initiators. Finally, the obtained product was vacuum-dried at 60 °C for 24 h to obtain the precursor. Then the precursor was dispersed in 1 mol L -1 In the sulfuric acid solution of 2000, stirring and soaking for 12 h to fully dope the precursor with sulfuric acid, and then fil...
Example Embodiment
[0027] Example 2
[0028] 5.58mg of sulfonated graphene was dissolved in 10mL of deionized water, and ultrasonically dispersed for 3h in an ice bath using an ultrasonic cell disintegrator (200W) to make it uniformly dispersed; 279mg of aniline monomer was added to the above solution, and then Continue to sonicate for 1 h, and then stir at constant speed for 12 h under an ice bath. The aqueous solution of ammonium persulfate was added dropwise, and the dropwise addition was completed within 0.5 h, and then the reaction was continued for 4 h. After the polymerization, the product was repeatedly washed with deionized water and ethanol until the color of the filtrate was colorless to remove residual monomers and initiators. Finally, the obtained product was vacuum-dried at 60 °C for 24 h to obtain the precursor. Then the precursor was dispersed in 1 mol L -1 In the sulfuric acid solution of 2000, stirring and soaking for 12 h to fully dope the precursor with sulfuric acid, and ...
Example Embodiment
[0033] Example 3
[0034] 27.9 mg of sulfonated graphene was dissolved in 10 mL of deionized water, and ultrasonically dispersed for 3 h in an ice bath using an ultrasonic cell pulverizer (200 W) to make it uniformly dispersed; 279 mg of aniline monomer was added to the above solution, and then Continue to sonicate for 1 h, and then stir at constant speed for 12 h under an ice bath. The aqueous solution of ammonium persulfate was added dropwise, and the dropwise addition was completed within 0.5 h, and then the reaction was continued for 4 h. After the polymerization, the product was repeatedly washed with deionized water and ethanol until the color of the filtrate was colorless to remove residual monomers and initiators. Finally, the obtained product was vacuum-dried at 60 °C for 24 h to obtain the precursor. Then the precursor was dispersed in 1 mol L -1 In the sulfuric acid solution of 2000, stirring and soaking for 24 h to fully dope the precursor with sulfuric acid, an...
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