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A kind of method and application thereof for preparing polymelamine conductive polymer electrode

A conductive polymer, polymelamine technology, applied in the field of chemical applications, can solve the problems of high impedance of glass electrodes, unsuitable for fluorine-containing solutions, easy to break, etc., to achieve the effects of fast production and high detection accuracy

Active Publication Date: 2021-12-10
HUNAN UNIV OF SCI & TECH
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Problems solved by technology

[0003] In the early days, people used the electrochemical method to measure the pH value. However, due to the high impedance of the traditional glass electrode, it is easily damaged, and it is not suitable for the measurement of pH in fluorine-containing solutions, and there is a "sodium error" in a highly alkaline environment. Many problems encountered in pH measurement

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  • A kind of method and application thereof for preparing polymelamine conductive polymer electrode
  • A kind of method and application thereof for preparing polymelamine conductive polymer electrode
  • A kind of method and application thereof for preparing polymelamine conductive polymer electrode

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Embodiment 1

[0032] Preparation of the solution used: for the preparation of the melamine monomer aqueous solution, accurately weigh 0.0126-0.1261 g of the melamine monomer, dissolve it in distilled water, and use a 100 mL volumetric flask to constant volume to obtain a 0.001-0.01 mol / L melamine aqueous solution. For the preparation of a suitable electrolyte solution, take neutrality as an example, accurately weigh 0.7140g sodium sulfate and 0.5855g sodium chloride, dissolve them with appropriate amount of secondary water respectively, and transfer them together to a 100mL volumetric flask to constant volume to obtain a neutral electrolyte solution.

[0033] Preparation of polymelamine conductive polymer electrode: glassy carbon electrode is used as the working electrode base material, which is polished step by step through sandpaper and alumina powder; then the polished working electrode is ultrasonically cleaned in distilled water, and then the glassy carbon electrode is cleaned with nitr...

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Abstract

The invention discloses a method for preparing a polymelamine conductive polymer electrode and its application. The polymelamine conductive polymer electrode is prepared by using melamine as a monomer, water as a solvent, and glassy carbon as a working electrode. , the polymelamine conductive polymer electrode can be quickly prepared, and a polymelamine conductive polymer film with redox activity can be obtained on the surface of the electrode. Applied to the detection of the pH value of the solution: the polymelamine conductive polymer electrode performs cyclic voltammetry tests in solutions of different pHs, and obtains a series of redox peaks, which can be detected according to the relationship between the pH value of the solution and the oxidation peak potential value The pH of the solution, the process of the invention has the advantages of green controllability, simple operation, etc., and can be used for quantitative detection of the pH value in water samples, and the detection is fast and accurate.

Description

technical field [0001] The invention belongs to the technical field of chemical application, and in particular relates to a method for preparing a polymelamine conductive polymer electrode and its application. Background technique [0002] Polymelamine is a new type of conductive polymer, which has the advantages of good stability, high nitrogen content, and rich amino groups. It has broad application prospects in sensors, photoelectric catalysis, color-changing devices, and battery materials. At present, the reports on polymelamine are all prepared by the solution electrochemical polymerization method in which the monomer is dissolved in the electrolyte solution, and there is no report on the preparation of polymelamine conductive polymer by the solid state electrochemical polymerization method. The present invention aims to develop a new method for rapid preparation to obtain polymelamine conductive polymer without adding monomers into the electrolyte solution, thereby rea...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N27/30G01N27/48
CPCG01N27/302G01N27/308G01N27/48
Inventor 陈述张晓静吴湾谷慧张杰陈建曾荣今龙云飞
Owner HUNAN UNIV OF SCI & TECH
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