Method for preparing graphene/polyaniline composite film electrode
A composite film and graphene technology, which is applied in the manufacture of hybrid capacitor electrodes and hybrid/electric double-layer capacitors, can solve problems such as energy consumption, time consumption, and consumables, and achieve the effects of short time consumption, less consumables, and easy operation.
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Embodiment 1
[0036] A preparation method of graphene / polyaniline composite thin film electrode, comprising the following steps:
[0037] 1. Add aniline to hydrochloric acid in a mass ratio of 1:36 with a mass fraction of 3.65% hydrochloric acid solution, and stir until the solution is homogeneous to obtain product A;
[0038] 2. Add ammonium persulfate to hydrochloric acid with a mass fraction of 3.65% in a mass ratio of 1:60, add ammonium persulfate to hydrochloric acid, and stir until the solution is a stable and homogeneous solution to obtain product B;
[0039] 3. Quickly mix equal volumes of product A and product B at room temperature, stir until obvious precipitation appears in the solution, vacuum filter, wash with distilled water and ethanol, and dry the sample obtained by suction filtration to obtain product C , namely the polyaniline fiber powder sample;
[0040] 4. According to the mass ratio of product C to deionized water is 1.5:20000, add product C to deionized water, and pe...
Embodiment 2
[0050] A preparation method of graphene / polyaniline composite thin film electrode, comprising the following steps:
[0051] 1. Add aniline to hydrochloric acid with a mass fraction of 7% hydrochloric acid solution at a mass ratio of 1:30, and stir until the solution is homogeneous to obtain product A;
[0052] 2. Add ammonium persulfate to hydrochloric acid solution with a mass fraction of 1-7% in a mass ratio of 1:55, add ammonium persulfate to hydrochloric acid, and stir until the solution is a stable and homogeneous solution to obtain product B;
[0053] 3. Quickly mix equal volumes of product A and product B at room temperature, stir until obvious precipitation appears in the solution, vacuum filter, wash with distilled water and ethanol, and dry the sample obtained by suction filtration to obtain product C , namely the polyaniline fiber powder sample;
[0054] 4. According to the mass ratio of product C to deionized water is 2:20000, add product C to deionized water, and...
Embodiment 3
[0065] A preparation method of graphene / polyaniline composite thin film electrode, comprising the following steps:
[0066] 1. Add aniline to hydrochloric acid in a mass ratio of 1:40 with a mass fraction of 1% hydrochloric acid solution, and stir until the solution is homogeneous to obtain product A;
[0067] 2. Add ammonium persulfate to hydrochloric acid solution with a mass fraction of 1-7% in a mass ratio of 1:65, add ammonium persulfate to hydrochloric acid, and stir until the solution is a stable and homogeneous solution to obtain product B;
[0068] 3. Quickly mix equal volumes of product A and product B at room temperature, stir until obvious precipitation appears in the solution, vacuum filter, wash with distilled water and ethanol, and dry the sample obtained by suction filtration to obtain product C , namely the polyaniline fiber powder sample;
[0069] 4. According to the mass ratio of product C to deionized water is 1:20000, add product C to deionized water, and...
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