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Method for rapidly preparing polymelamine conductive polymer electrode and application thereof

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

Active Publication Date: 2019-02-19
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

Method used

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  • Method for rapidly preparing polymelamine conductive polymer electrode and application thereof
  • Method for rapidly preparing polymelamine conductive polymer electrode and application thereof
  • Method for rapidly preparing polymelamine conductive polymer electrode and application thereof

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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 rapidly preparing a polymelamine conductive polymer electrode and an application thereof. The melamine conductive polymer electrode can be rapidly prepared under the condition of solid state electrochemical polymerization and by taking melamine as a monomer, water as a solvent, and glassy carbon as a working electrode. A polymelamine conductive polymer film with redox activity is obtained on the surface of the electrode. Cyclic voltammetry testing is carried out on the polymelamine conductive polymer electrode in solutions with different pH to obtain a series of redox peaks, and pH values of the solutions can be detected according to the relationship between the pH value of the solution and the oxidation peak potential value. The method has the advantages of being green, controllable, simple in operation, and the like, can be used for quantitative detection of the pH values in water samples, and is rapid and accurate in detection.

Description

technical field [0001] The invention belongs to the technical field of chemical application, and in particular relates to a method for quickly preparing polymelamine conductive polymer electrodes 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, ther...

Claims

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Application Information

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Patent Type & Authority Applications(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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