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One-step electrochemical preparation method of graphene/polyaniline flexible electrode

A flexible electrode and polyaniline technology, applied in the direction of hybrid capacitor electrodes, circuits, electrical components, etc., can solve the problems of heavy weight, inconvenience, easy breakage and transportation of glass substrates, and achieve simple manufacturing process, high conductivity, and controllability Good results

Active Publication Date: 2018-03-16
ZHONGYUAN ENGINEERING COLLEGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The purpose of the present invention is to provide a one-step electrochemical preparation method of a graphene / polyaniline flexible electrode using flexible plastic as a conductive substrate in view of the shortcomings of the glass matrix in traditional electrode materials such as heavy weight, easy breakage, and inconvenient transportation.

Method used

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  • One-step electrochemical preparation method of graphene/polyaniline flexible electrode

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Effect test

Embodiment 1

[0024] First, the graphene nanosheets were added into deionized water for ultrasonic dispersion for 30 minutes, and the concentration of the configuration was a uniformly dispersed graphene dispersion of 1 g / L; then aniline monomer and sulfuric acid were added to the graphene dispersion for ultrasonic dispersion for 30 minutes, wherein the aniline monomer and The mass ratio of graphene is 28:1, the concentration of sulfuric acid is 0.5mol / L, and the graphene / aniline mixed electrolyte solution is prepared; the flexible ITO conductive PET plastic substrate is selected as the working electrode, the platinum sheet electrode is used as the counter electrode, and the saturated calomel electrode As a reference electrode, place the three electrodes in the above-mentioned mixed electrolyte solution, and use the constant potential method to electrochemically polymerize at a voltage of 1.4V for 500 seconds and continue magnetic stirring to form a graphene / polyaniline composite film; take o...

Embodiment 2

[0027] First, add graphene nanosheets into deionized water for ultrasonic dispersion for 40 minutes, and configure a uniformly dispersed graphene dispersion with a concentration of 1.0 g / L; then add aniline monomer and sulfuric acid into the graphene dispersion for ultrasonic dispersion for 40 minutes, wherein the aniline monomer The mass ratio to graphene is 28:1, the concentration of sulfuric acid is 0.5mol / L, and the graphene / aniline mixed electrolyte solution is prepared; the flexible ITO conductive PET plastic substrate is selected as the working electrode, the platinum sheet electrode is used as the counter electrode, saturated calomel The electrode is used as a reference electrode, the three electrodes are placed in the above mixed electrolyte solution, and the constant potential method is used to electrochemically polymerize at a voltage of 1.6V for 500 seconds and continue magnetic stirring to form a graphene / polyaniline composite film; Take out the working electrode, ...

Embodiment 3

[0030]First, graphene nanosheets were added to deionized water for ultrasonic dispersion for 50 minutes, and the concentration of the configuration was a uniformly dispersed graphene dispersion of 1 g / L; then aniline monomer and sulfuric acid were added to the graphene dispersion for ultrasonic dispersion for 50 minutes, wherein the aniline monomer and The mass ratio of graphene is 28:1, the concentration of sulfuric acid is 0.5mol / L, and the graphene / aniline mixed electrolyte solution is prepared; the flexible ITO conductive PET plastic substrate is selected as the working electrode, the platinum sheet electrode is used as the counter electrode, and the saturated calomel electrode As a reference electrode, place the three electrodes in the above-mentioned mixed electrolyte solution, and use the constant potential method to electrochemically polymerize at a voltage of 1.8V for 500 seconds and continue magnetic stirring to form a graphene / polyaniline composite film; take out the ...

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Abstract

The invention discloses a one-step electrochemical preparation method of a graphene / polyaniline (PANI) flexible electrode. In this method, graphene nanosheets are firstly added to the dispersant for ultrasonic dispersion, and then aniline monomer and acidic solution are added to further ultrasonically disperse to form a uniform mixed solution; then the flexible conductive substrate is used as the working electrode, and the platinum sheet electrode is used as the counter electrode. The saturated calomel electrode is used as a reference electrode, placed in the above-mentioned mixed solution containing graphene, aniline and acid solution, and electrochemical polymerization is carried out while continuous magnetic stirring. After the reaction, the sample is washed with absolute ethanol and deionized in sequence. , the graphene / polyaniline flexible electrode prepared by one-step electrochemical method can be obtained by vacuum drying. The electrode uses flexible conductive PET and other plastics as the conductive substrate, which has good flexibility and lightness, and can be curled at will. The advantage of bending is expected to become a replacement product for hard substrates such as glass.

Description

technical field [0001] The invention relates to a one-step electrochemical preparation method of a graphene / polyaniline flexible electrode, in particular to a one-step electrochemical preparation method of a graphene / polyaniline flexible electrode using flexible plastic as a conductive substrate. Background technique [0002] The flexibility of electronic products has become a fashion trend in the current electronic consumer market. With the miniaturization and lightweight development of electronic devices, flexible optoelectronic devices, such as organic light-emitting diodes, flexible flat panel displays, lightweight flexible supercapacitors, flexible solar cells, etc., have attracted more and more researchers' attention. [0003] Most of the traditional electrode materials use conductive glass substrates or metal substrates. Among them, the glass substrate has the disadvantages of heavy weight, easy to break, and inconvenient transportation, while the metal substrate also...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01G11/48H01L31/0224
CPCY02E60/13
Inventor 秦琦何方宋梦张旺玺张倩
Owner ZHONGYUAN ENGINEERING COLLEGE
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