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Clustered polyaniline nanofiber composite carbon electrode and preparation method and application thereof

A nanofiber and polyaniline technology, which is applied in the field of clustered polyaniline nanofiber composite carbon electrodes and its preparation, can solve the problems of poor electrical conductivity and biocompatibility, and achieves improved electrochemical reaction rate, good adsorption performance, technically simple effect

Active Publication Date: 2017-07-04
JIANGSU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, poor conductivity and biocompatibility are bottlenecks restricting its application

Method used

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  • Clustered polyaniline nanofiber composite carbon electrode and preparation method and application thereof
  • Clustered polyaniline nanofiber composite carbon electrode and preparation method and application thereof
  • Clustered polyaniline nanofiber composite carbon electrode and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Dissolve 0.113g of tartaric acid in 40ml of water, stir magnetically at room temperature for 0.5h; add 273.5 microliters of aniline, continue stirring for 30min, and then cool in an ice bath for 10min; dissolve 0.685g of ammonium persulfate in 20ml of water, and place in an ice bath for 10min; Add the solution dropwise to the aniline-tartaric acid solution under the condition of stirring in an ice bath, then put in carbon cloth (1*2cm), suspend the carbon cloth, keep the carbon cloth fully exposed in the aqueous solution, and stop stirring; place in the ice bath for 4~ After 48 hours, take out the carbon cloth electrode, and wash it repeatedly with deionized water and ethanol for 1 to 5 times. When cleaning, the ethanol can be replaced with methanol, acetone, benzene, petroleum ether, and ethyl acetate.

[0027] Such as figure 1 As shown, Figure A is the physical picture of the composite electrode; from the SEM image of Figure B, it can be seen that the surface of the ...

Embodiment 2

[0029] It is basically the same as Example 1, but following changes are arranged: the tartaric acid is 0.226g, and the appearance diagram and SEM scanning electron microscope picture of gained composite electrode are as figure 2 shown.

Embodiment 3

[0031] It is basically the same as Example 1, but following changes are arranged: the tartaric acid is 0.057g, and the gained composite electrode is applied to microbial fuel cells, and the maximum output voltage of the gained composite electrode reaches 373 millivolts, and the MFC of the common carbon cloth electrode of the control group prepared simultaneously The maximum output voltage is 126 millivolts, and the obtained composite electrode can improve the power generation performance of the microbial fuel cell.

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Abstract

The invention provides a clustered polyaniline nanofiber composite carbon electrode and preparation method and application thereof. The preparation method comprises the following steps of firstly, dissolving tartaric acid in water to obtain a tartaric acid aqueous solution, adding aniline to the tartaric acid aqueous solution to obtain a mixed liquid A, and performing ice-bath cooling; secondly, dropwise adding an ammonium persulfate aqueous solution into the mixed liquid A to obtain a mixed liquid B, and performing ice-bath heat preservation; thirdly, placing a carbon fabric in the mixed liquid B, and allowing ice-bath standing; and finally, taking out the carbon fabric, washing the carbon fabric with deionized water and an organic solvent to obtain the clustered polyaniline nanofiber composite carbon electrode. In the polyaniline product prepared according to the method, a regular clustered nanometer structure is formed on a surface of the carbon fabric in an in-situ way, and the material has better biological compatibility and larger specific area; the size and the shape of the electrode can be adjusted, and the electrode is applicable to different demands of a laboratory, a factory, a precise instrument and the like; and with a microstructure electrode formed from the electrode, the electrode has higher roughness and more excellent absorption performance, and the electrochemical reaction ratio is greatly improved.

Description

technical field [0001] The invention relates to a clustered polyaniline nanofiber composite carbon electrode, a preparation method and application, and belongs to the technical field of electrode materials. Background technique [0002] Traditional carbon-based electrodes have good stability and are cheap and easy to obtain, so they occupy an important position in the application field of electrode materials. However, the poor conductivity and biocompatibility are the bottlenecks restricting its application. Electrode modification technology can greatly improve electrode performance on the basis of the original electrode, and is a commonly used electrode improvement method and design idea. [0003] Among them, the conductive polymer polyaniline has good biocompatibility, good electrical conductivity, and is easy to form a stable complex with carbon materials ("New Chemical Materials", 2015,43(7):218-220), and its preparation technology Simple and widely concerned by resear...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/86H01M4/90H01M4/88H01M8/16B82Y30/00B82Y40/00
CPCB82Y30/00B82Y40/00H01M4/8647H01M4/885H01M4/9008H01M4/9083H01M8/16Y02E60/50
Inventor 雍阳春翟丹丹俞洋洋
Owner JIANGSU UNIV
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