Method for preparing morphology-controlled conductive polyaniline film by using electrophoretic deposition

A technology of conductive polyaniline and polyaniline film, which is applied in the direction of electrolysis process and electricity generation process, can solve the problems of inability to form and process, poor comprehensive mechanical properties, and difficulty in controlling the shape of polyaniline film, so as to achieve easy control and good electrical conductivity. The effect of chemical properties

Inactive Publication Date: 2015-04-22
SHAANXI RES INST OF AGRI PRODS PROCESSING TECH +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, due to the strong interaction between molecules and the high rigid chain, the doped polyaniline in the conductive state is almost insoluble in any solvent, and it will not melt when heated until it decomposes. The comprehensive mechanical properties are poor, and it cannot be directly processed by traditional methods. To a large extent, its application is limited, and the preparation of polyaniline film is an effective way to solve its difficult processing problem
Using aniline monom

Method used

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  • Method for preparing morphology-controlled conductive polyaniline film by using electrophoretic deposition
  • Method for preparing morphology-controlled conductive polyaniline film by using electrophoretic deposition
  • Method for preparing morphology-controlled conductive polyaniline film by using electrophoretic deposition

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Effect test

Embodiment 1

[0024] (1) Clean indium tin oxide conductive glass (ITO) as the working electrode, use acetone, ethanol, and distilled water in an ultrasonic cleaning machine for 20 minutes each, and dry at 40°C for 2 hours. The cleaned ITO electrode is stored in a sealed bag for later use.

[0025] (2) Take conductive polyaniline (PANI) powder with nanofibrous morphology and dissolve it in formic acid to obtain a PANI formic acid solution with a concentration of 1 mg / mL. With PANI formic acid solution as the dispersion medium and acetonitrile as the dispersant, prepare the PANI sol with a concentration of 0.01g / L.

[0026] (3) Take the PANI sol into a beaker, fix the ITO electrode and the platinum sheet electrode (counter electrode), connect the platinum sheet electrode to the positive electrode, connect the ITO electrode to the negative electrode, connect the DC working power supply, control the deposition voltage to 50V, and the deposition time to 60s After the deposition is completed, ri...

Embodiment 2

[0028] (1) Clean indium tin oxide conductive glass (ITO) as the working electrode, use acetone, ethanol, and distilled water in an ultrasonic cleaning machine for 20 minutes each, and dry at 40°C for 2 hours. The cleaned ITO electrode is stored in a sealed bag for later use.

[0029] (2) Take conductive polyaniline (PANI) powder with nanofibrous morphology and dissolve it in formic acid to obtain a PANI formic acid solution with a concentration of 1 mg / mL. With PANI formic acid solution as the dispersion medium and acetonitrile as the dispersant, PANI sol with a concentration of 0.5g / L was prepared.

[0030] (3) Take PANI sol into a beaker, fix the ITO electrode and the platinum sheet electrode (counter electrode), connect the platinum sheet electrode to the positive electrode, connect the ITO electrode to the negative electrode, connect the DC working power supply, control the deposition voltage to 150V, and the deposition time to 300s After the deposition is completed, rins...

Embodiment 3

[0032] (1) Clean indium tin oxide conductive glass (ITO) as the working electrode, use acetone, ethanol, and distilled water in an ultrasonic cleaning machine for 20 minutes each, and dry at 40°C for 2 hours. The cleaned ITO electrode is stored in a sealed bag for later use.

[0033] (2) Take conductive polyaniline (PANI) powder with nanotube-like morphology and dissolve it in formic acid to obtain a PANI formic acid solution with a concentration of 1 mg / mL. With PANI formic acid solution as the dispersion medium and acetonitrile as the dispersant, prepare the PANI sol with a concentration of 0.01g / L.

[0034] (3) Take the PANI sol into a beaker, fix the ITO electrode and the platinum sheet electrode (counter electrode), connect the platinum sheet electrode to the positive electrode, connect the ITO electrode to the negative electrode, connect the DC working power supply, control the deposition voltage to 50V, and the deposition time to 60s After the deposition is completed, ...

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Abstract

The invention discloses a method for preparing a morphology-controlled conductive polyaniline film by using electrophoretic deposition. The conductive polyaniline is considered as a conductive high polymer material with the best industrial application prospects, and the method for preparing the conductive polyaniline film is an effective processing method for promoting polyaniline industrialization. The method comprises the following steps: by taking the chemically synthetic conductive polyaniline sol as electrolyte, taking a direct current power supply as a working power supply, and taking a platinum plate electrode as a counter electrode, preparing the conductive polyaniline film with good electrochemical performance on an indium tin oxide conductive glass working electrode by adopting an electrophoretic deposition method. The micro morphology of the prepared conductive polyaniline film is consistent with the micro morphology of the chemically synthetic conductive polyaniline, and the morphology of the conductive polyaniline film can be controlled according to the morphology of the chemically synthetic polyaniline.

Description

technical field [0001] The invention relates to the technical field of preparation of conductive polyaniline films, in particular to a method for preparing conductive polyaniline films with controllable morphology by electrophoretic deposition. Background technique [0002] Conductive polymers, also known as conductive polymers, are polymers that exhibit semiconductor or even conductor properties by chemically or electrochemically doping the polymer backbone with conjugated double bonds. The conversion of electrical conductivity can be realized through reversible doping-dedoping, which can be adjusted between insulator, semiconductor and conductor according to the needs of use. The physical and chemical properties of conductive polymers are unmatched by any material so far. [0003] Polyaniline has good stability in air, high electrical conductivity, low cost, diverse structure, special doping mechanism, etc. It is one of the most promising conductive polymers. However, du...

Claims

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Application Information

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IPC IPC(8): C25B7/00
Inventor 邵亮姬占有张旭霞刘欢文天宇
Owner SHAANXI RES INST OF AGRI PRODS PROCESSING TECH
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