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Nano-polyaniline material with morphology inheritance and electrochemical preparation method

A nano-polyaniline, electrochemical technology, applied in electrolytic components, electrolytic processes, electrolytic organic production, etc., can solve the problems of difficulty in industrialized mass production, difficulty in controlling film thickness and morphology, and complex polymer deposition steps. Achieve the effect of low cost, environmental friendliness and controllable thickness

Inactive Publication Date: 2009-07-29
NANJING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although the template method is a commonly used and effective method for synthesizing nanostructured organic conductive polymers at home and abroad, these methods have disadvantages such as complicated preparation steps, high cost, or difficulty in template removal; in the application of modified electrodes and sensors, these methods The deposition steps of the prepared polymer on the electrode surface are relatively complicated, and the control of film thickness and morphology is difficult, which makes it difficult to achieve industrial mass production

Method used

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  • Nano-polyaniline material with morphology inheritance and electrochemical preparation method
  • Nano-polyaniline material with morphology inheritance and electrochemical preparation method

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Embodiment 1

[0020] Embodiment 1: The present invention has the nanometer polyaniline material electrochemical preparation method of morphology hereditary ability, comprises the following steps:

[0021] In the first step, add 5mmol of aniline and 25mmol of sulfuric acid into water, stir evenly, and make a 50ml transparent mixed solution, the concentration of aniline is 0.1mol / L, and the concentration of sulfuric acid is 0.5mol / L;

[0022] In the second step, the conductive glass is used as the working electrode, the platinum sheet is used as the counter electrode, and the saturated calomel electrode is used as the reference electrode for electrochemical synthesis: 20ml of the above solution is added to the electrolytic cell, and the constant potential method is used at 1.0V. The polymerization was carried out for 10 minutes, and the experimental temperature was 10°C. After completion, rinse with a large amount of water to remove the reactants attached to the surface;

[0023] The third s...

Embodiment 2

[0025] Embodiment 2: The present invention has the nanometer polyaniline material electrochemical preparation method of morphology hereditary ability, comprises the following steps:

[0026] In the first step, add 5mmol aniline and 50mmol camphorsulfonic acid (CSA) to water, stir well, and make a 50ml transparent mixed solution, the concentration of aniline is 0.1mol / L, and CSA is 1.0mol / L;

[0027] In the second step, the gold electrode is used as the working electrode, the platinum sheet is used as the counter electrode, and the saturated calomel electrode is used as the reference electrode for electrochemical synthesis: 20ml of the above solution is added to the electrolytic cell, and the constant potential method is used at 0.8V. The polymerization was carried out for 10 minutes, and the experimental temperature was 20°C. After completion, rinse with a large amount of water to remove the reactants attached to the surface;

[0028] The third step is the same as step three ...

Embodiment 3

[0031] Embodiment 3: The present invention has the nanometer polyaniline material electrochemical preparation method of morphology hereditary ability, comprises the following steps:

[0032] In the first step, add 10mmol aniline and 50mmol p-toluenesulfonic acid (TSA) into water, stir evenly, and make a transparent mixed solution, the concentration of aniline is 0.2mol / L, and TSA is 1.0mol / L;

[0033] In the second step, the gold electrode is used as the working electrode, the platinum sheet is used as the counter electrode, and the saturated calomel electrode is used as the reference electrode for electrochemical synthesis: 20ml of the above-mentioned solution is added to the electrolytic cell, and the constant current method is used to obtain cm -2 The polymerization was carried out for 5 minutes under the current density, and the experimental temperature was 20°C. After completion, rinse with a large amount of water to remove the reactants attached to the surface;

[0034...

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Abstract

The invention discloses a nanometer polyaniline material with appearance hereditary potency and an electrochemistry preparation method thereof. The method comprises the following steps: aniline and doping acid I are added into water, stirred to form doping acid I solution of the aniline; in a three electrode system, the doping acid I solution of the aniline is added into an electrolytic cell; the electrochemical synthesis is carried out on a working electrode for obtaining the polyaniline material with nanometer structure doped with the doping acid I; after the electrochemical synthesis is finished, a polyaniline modified electrode doped with doping acid I is obtained; the modified electrode is used as the working electrode, put into water solution containing doping acid II, electrolyzed to a cyclic voltammetry graph by using cyclic voltammetry and stable to obtain the polyaniline material doped with doping acid II, the appearance of which is same to the polyaniline nanometer structure doped with the doping acid I obtained in the second step. The polyaniline material obtained in the invention only has difference in the chemical composition of doping ions and does not change the microscopic morphology of polyaniline. The appearance hereditary has important using value.

Description

technical field [0001] The invention belongs to the technology of conductive polymer materials, in particular to an electrochemical preparation method of nanometer polyaniline material with shape inheritance. Background technique [0002] Conductive polymers such as polyaniline are a class of conductive polymer materials that have attracted much attention due to their excellent electrical and electrochemical properties, especially the advantages of stable chemical properties and environmental friendliness. Electrostatic, electrochromic, electromagnetic shielding and biological and chemical sensors have broad application prospects. [0003] In recent years, with the in-depth development of nanoscience and technology in various fields, nanostructured conductive polymers such as polyaniline have aroused great interest of researchers. It has the chemical and physical properties of bulk conductive polyaniline; it also has the unique structure of nanomaterials. It has a good app...

Claims

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Application Information

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IPC IPC(8): C08G73/02C25B3/00H01B1/12
Inventor 郝青丽汪信周倩严贞贞杨绪杰陆路德刘孝恒
Owner NANJING UNIV OF SCI & TECH
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