Electrochemical method for synthesizing Nano fiber of polyaniline

A synthesis method and nanofiber technology, applied in electrolysis process, electrolysis components, electrolysis organic production and other directions, can solve the problems of high cost, difficulty in mass production, difficulty in removing templates, etc., and achieve regular arrangement, wide application prospects and uniform particle size. Effect

Inactive Publication Date: 2007-05-09
YANGZHOU UNIV
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Problems solved by technology

Although there are many methods for preparing polyaniline nanostructures, these methods have disadvantages such as high cost or difficult template rem

Method used

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  • Electrochemical method for synthesizing Nano fiber of polyaniline

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Embodiment Construction

[0012] 1. Preparation of raw materials:

[0013] Aniline, analytically pure, was distilled under reduced pressure until it was colorless and stored in a refrigerator at 4°C for later use. All other chemical reagents were of analytical grade and used directly. All solutions were made up with double distilled water.

[0014] 2. Add aniline and small molecule alcohol (methanol or ethanol or propanol or butanol) to hydrochloric acid aqueous solution, stir until uniform, and make the concentration of aniline 0.1-0.4mol dm -3 , the concentration of hydrochloric acid is 0.5~1.5moldm -3 , the alcohol dopant concentration is 0.5~2mol dm -3 .

[0015] In this step, hydrochloric acid can be replaced by sulfuric acid or organic acids (benzenesulfonic acid, acetic acid, etc.).

[0016] 3. Electrolyte preparation:

[0017] The electrolytic cell adopts a three-electrode system, with conductive glass or platinum as the working electrode, platinum as the auxiliary electrode, and a satura...

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Abstract

This invention relates to an electrochemical method for synthesizing polyaniline nanofibers. The method comprises: uniformly mixing 0.5-1.5 mol/dm3 proton acid dopant, 0.1-0.4 mol/dm3 aniline monomer, and 0.5-2 mol/dm3 alcohol dopant in a three-electrode system, pouring into a reactor, electrolyzing at 10-30 deg.C under constant electrical potential for 10-30 min to obtain polyaniline nanofibers adsorbed on the working electrodes. The obtained polyaniline nanofibers have uniform particle sizes (50-150 nm) and ordered arrangement, and can be widely used in photoelectronic devices, information, sensors, molecular leads and molecular devices.

Description

technical field [0001] The invention relates to an electrochemical synthesis method of polyaniline nanofibers. Background technique [0002] Polyaniline has many excellent properties such as high electrical conductivity, environmental stability, structural diversity, unique doping mechanism, redox reversibility, electrochromism, and photoelectric conversion. The application of polyaniline in plastic batteries, electrocatalytic reactions, chemical biosensors, light emitting diodes, metal anticorrosion, antistatic, electromagnetic shielding and other fields has received extensive attention, and is considered to be the most promising conductive polymer in practical applications. one. [0003] In the past decade or so, nanostructured polyaniline has aroused great interest of researchers due to its unusual physical and chemical properties. The interest in conducting polymer nanostructures mainly stems from their potential applications in catalysis, molecular electronics, energy...

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Application Information

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IPC IPC(8): C25B3/00C08G73/02
Inventor 阚锦晴周甦
Owner YANGZHOU UNIV
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