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Method for testing electrochemical performance of polyaniline synthesized by chemical method

A test method and technology of polyaniline, applied in the direction of electrochemical variables of materials, can solve the problem that the electrochemical properties of polyaniline are difficult to effectively characterize, and achieve the effect of good electrical conductivity

Inactive Publication Date: 2009-09-30
CHONGQING UNIV
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Problems solved by technology

[0005] The purpose of the present invention is to overcome the above-mentioned deficiencies in the prior art and solve the problem that the electrochemical properties of polyaniline synthesized by chemical methods are difficult to effectively characterize

Method used

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  • Method for testing electrochemical performance of polyaniline synthesized by chemical method
  • Method for testing electrochemical performance of polyaniline synthesized by chemical method
  • Method for testing electrochemical performance of polyaniline synthesized by chemical method

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Embodiment

[0018] Weigh sodium dodecylbenzenesulfonate into a three-necked flask, add hydrochloric acid and stir until it is completely dissolved. Add carbon paper into the system to make it fully wet, add the configured initiator ammonium persulfate solution dropwise, and react for 4 to 5 hours. After the reaction, take out the carbon paper, and use the polyaniline-loaded carbon paper as an electrode to carry out polymerization. Electrochemical performance test of aniline.

[0019] Depend on figure 1 It can be seen that there are three pairs of relatively obvious redox peaks around 0.2, 0.6 and 0.8V, which is consistent with Itava K et al. -382) The same as reported in the literature, that is, the peak at 0.2V corresponds to the process of oxidation of aniline to positive ion groups, the peak at 0.8V corresponds to the process of further oxidation to its quinoid compound, and the middle peak corresponds to the process of polyaniline The degradation product benzoquinone is also consist...

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Abstract

The invention provides a method for testing electrochemical performance of polyaniline synthesized by a chemical method. The method comprises the following steps: when synthesizing the polyaniline by the chemical method, adding carbon paper before a polymerization reaction, and sufficiently moistening the carbon paper; adding initiator, such as ammonium persulfate solution, to make the polyaniline perform the polymerization reaction by taking the carbon paper as a center and evenly adsorbed on the surface on the carbon paper; at any time of the polymerization reaction, taking the carbon paper out; and using the carbon paper as an electrode to test the electrochemical performance of the polyaniline. The method adopts the carbon paper as a carrier to carry out testing on the electrochemical performance of the polyaniline, thereby effectively solving the problems of sensibility, accuracy and stability in the electrochemical test of the polyaniline. The method is simple and accessible, does not have pollution, has low cost, and has important reference significance and universality for the test of the electrochemical performance of high polymer.

Description

technical field [0001] The invention belongs to a method for testing the electrochemical performance of polyaniline, in particular to a method for testing the electrochemical performance of polyaniline synthesized by a chemical method. Background technique [0002] Since MacDiarmid et al. redeveloped polyaniline in 1984, polyaniline has a unique doping-dedoping mechanism, simple synthesis, good stability to oxygen and water, diverse structures, good conductivity and excellent electrical conductivity. Chemical properties, etc. are considered to be one of the most promising conductive polymer materials. Electrochemical and chemical methods are often used for the synthesis of polyaniline. Polyaniline is synthesized by chemical method. Because of its simple synthesis process, large output and easy industrial production, it is favored by people. However, the chemically synthesized polyaniline has the characteristics of insoluble, infusible, and difficult to process, so it is dif...

Claims

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Application Information

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IPC IPC(8): G01N27/26G01N27/48
Inventor 马利甘孟瑜罗来正唐继海
Owner CHONGQING UNIV
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