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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.

Active Publication Date: 2016-07-27
GUIZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the substrate transfer process first needs to etch away the suction filter membrane while retaining the graphene-based film on the filter membrane, and then transfer the graphene-based film to a flexible substrate, so the preparation of graphene-based flexible film electrodes is usually very time-consuming. , consumables, energy consumption

Method used

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  • Method for preparing graphene/polyaniline composite film electrode

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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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Abstract

The invention discloses a method for preparing a graphene / polyaniline composite film electrode. The method comprises the following steps: adding aniline in hydrochloric acid, and stirring to obtain a product A; adding ammonium persulfate in the hydrochloric acid, and stirring to obtain a product B; mixing the product A with the product B, stirring, filtering, cleaning through distilled water and alcohol, and drying a sample obtained by filtering to obtain a product C; adding the product C in deionized water, and carrying out an ultrasonic oscillating treatment until a homogeneous polyaniline aqueous solution is obtained, namely, a product D; adding graphite oxide in the product D, and carrying out the ultrasonic oscillating treatment to obtain a product E; stewing the product E to obtain a product F; depositing the product F on a flexible plastic film, and drying to obtain a product G; soaking the product G in a hydrogen iodide solution, reducing, and cleaning to obtain a product H; soaking the product H in a hydrochloric acid solution, and drying to obtain a product I. The composite film of graphene / polyaniline fibers prepared by the method disclosed by the invention can be directly used as an electrode material of a flexible film super capacitor, and the method is simple to operate, short in time consumption, little in material consumption and is environmental friendly.

Description

technical field [0001] The invention relates to a preparation method of a graphene-based composite thin film electrode, in particular to a preparation method of a graphene / polyaniline fiber composite thin film electrode. Background technique [0002] With the increasingly serious problems of fossil fuels and environmental pollution, the development of new energy is imminent, and the corresponding new energy devices have also received great attention. Among them, supercapacitors are characterized by their high power density, fast charge and discharge rate, long-term cycle The advantages such as longevity are particularly noticeable in various new energy devices. At the same time, with the development of wearable electronic devices and people's desire and pursuit for small, light and thin electronic devices, thin-film flexible supercapacitors have become an important part of the development and improvement of wearable electronic devices. [0003] Graphene is a single-layer tw...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01G11/86H01G11/30H01G11/36H01G11/48C08G73/02
CPCY02E60/13H01G11/86C08G73/0266H01G11/30H01G11/36H01G11/48
Inventor 邵姣婧向婷吴嫣琳伍欢羽吴海龙
Owner GUIZHOU UNIV
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