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Method for preparing conductive polyaniline nanotube by taking sucrose as template

A conductive polyaniline and nanotube technology, applied in nanotechnology and other directions, can solve the problems of affecting the electrochemical performance of polyaniline, uncontrollable and irregular diameter of polyaniline nanotubes, etc., and achieve high specific capacitance and cost. Low cost and the effect of reducing internal resistance

Inactive Publication Date: 2015-12-09
GUILIN UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The preparation of polyaniline by the template-free method has the advantages of environmental protection and simplicity, but the diameter of the obtained polyaniline nanotubes is uncontrollable and irregular, which affects the electrochemical performance of polyaniline to a certain extent.

Method used

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  • Method for preparing conductive polyaniline nanotube by taking sucrose as template
  • Method for preparing conductive polyaniline nanotube by taking sucrose as template

Examples

Experimental program
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Effect test

Embodiment 1

[0014] (1) Weigh 0.250g of sucrose (the ratio of sucrose to aniline is 1:15), add it into a flask filled with 30mL deionized water, stir at room temperature for 0.5h, then transfer the flask to an ice water bath At this time, add 1 mL of purified aniline and 10 mL of 1 mol / L hydrochloric acid solution into the flask, and stir for 1 h under the condition of an ice-water bath.

[0015] (2) Dissolve a certain amount of ammonium persulfate in deionized water to obtain an aqueous solution of ammonium persulfate (the ratio of the amount of ammonium persulfate to aniline is 1:1), and then add it dropwise to step (1) The prepared solution was stirred for 12 hours under the condition of an ice-water bath. After the reaction was completed, the reactant was washed with deionized water and suction filtered until the filtrate was neutral. The obtained filter cake was stored in a vacuum oven at 50°C. Dry for 24 hours, grind and collect to obtain conductive polyaniline nanotubes.

Embodiment 2

[0017] (1) Weigh 0.313g of sucrose (the ratio of sucrose to aniline is 1:12), add it into a flask filled with 30mL deionized water, stir at room temperature for 0.5h, then transfer the flask to an ice water bath At this time, add 1 mL of purified aniline and 10 mL of 1 mol / L hydrochloric acid solution to the flask, and stir for 1 h under the condition of an ice-water bath.

[0018] (2) Dissolve a certain amount of ammonium persulfate in deionized water to obtain an aqueous solution of ammonium persulfate (the ratio of the amount of ammonium persulfate to aniline is 1:1), and then add it dropwise to step (1) The prepared solution was stirred for 12 hours under the condition of an ice-water bath. After the reaction was completed, the reactant was washed with deionized water and suction filtered until the filtrate was neutral. The obtained filter cake was stored in a vacuum oven at 50°C. Dry for 24 hours, grind and collect to obtain conductive polyaniline nanotubes.

Embodiment 3

[0020] (1) Weigh 0.417g of sucrose (the ratio of sucrose to aniline is 1:9), add it into a flask filled with 30mL deionized water, stir at room temperature for 0.5h, then transfer the flask to an ice water bath At this time, add 1 mL of purified aniline and 10 mL of 1 mol / L hydrochloric acid solution to the flask, and stir for 1 h under the condition of an ice-water bath.

[0021] (2) Dissolve a certain amount of ammonium persulfate in deionized water to obtain an aqueous solution of ammonium persulfate (the ratio of the amount of ammonium persulfate to aniline is 1:1), and then add it dropwise to step (1) The prepared solution was stirred for 12 h under the condition of an ice-water bath, and after the reaction was completed, the reactant was washed with deionized water and suction filtered until the filtrate was neutral. Finally, the filter cake was dried in a vacuum drying oven at 50° C. for 24 hours, and collected by grinding to obtain conductive polyaniline nanotubes.

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Abstract

The invention discloses a method for preparing a conductive polyaniline nanotube by taking sucrose as a template. A certain amount of the sucrose is fully dissolved in deionized water, and then purified aniline and 10 mL of hydrochloric acid solutions with the concentration of 1 mol / L are added on the condition of an ice-water bath; after the mixture is fully stirred, an oxidation initiator of ammonium persulfate is dropwise added to initiate aniline polymerization; a reaction is performed for 12 h under stirring to obtain conductive polyaniline of a tubular structure. The method is simple, environmentally friendly and reliable in preparation process, wide in raw material source, low in cost and suitable for industrialized production; the prepared polyaniline nanotube has the higher specific capacitance amount and better large-current resisting performance compared with polyaniline prepared without using the template, and the conductive polyaniline is an ideal supercapacitor electrode material.

Description

technical field [0001] The invention belongs to the technical field of preparation of conductive polyaniline nanotubes, and particularly relates to a method for preparing conductive polyaniline nanotubes using sucrose as a template. In the method, sucrose is used as a template, and aniline is prepared by self-assembly and in-situ polymerization with a nanotube structure. conductive polyaniline. Background technique [0002] As a common conductive polymer, polyaniline is often used in supercapacitors, batteries, sensors and anti-corrosion fields due to its simple preparation, low cost, good environmental stability and unique physical and chemical properties. The great attention of scientific researchers all over the world. In particular, conductive polyaniline with nanostructures, due to its extremely small particle size, large specific surface area, and extremely fast electron transfer rate, endows nano-conductive polyaniline materials with many unique properties that tradi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G73/02B82Y40/00
Inventor 樊新刘铮文德兴潘显栋
Owner GUILIN UNIVERSITY OF TECHNOLOGY
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