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Silver/silver chloride electrode slice and preparation technology thereof

A silver chloride electrode and preparation process technology, applied in the direction of material electrochemical variables, material analysis by electromagnetic means, measuring devices, etc., can solve the problems of unstable electrical properties, low purity, cumbersome process, etc., and achieve compactness Micro interface, reduce production cost, improve the effect of preparation efficiency

Inactive Publication Date: 2016-02-17
吴国清
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the purity of this screen-printed electrode is not high, the microstructure of silver and silver chloride is unevenly mixed, and the particles are coarse, resulting in unstable electrical numbers and large signal differences between batches, and the screen-printed electrode is not resistant Corrosion by organic solvents, not suitable for organic solvent environment, limited scope of use
In addition, powder sintered electrodes and electrochemically prepared electrodes also have the problem of poor electrode stability, and the process is cumbersome, which is not conducive to mass production

Method used

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  • Silver/silver chloride electrode slice and preparation technology thereof
  • Silver/silver chloride electrode slice and preparation technology thereof
  • Silver/silver chloride electrode slice and preparation technology thereof

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Embodiment Construction

[0016] The present invention is described in further detail below in conjunction with the examples, but the present invention is not limited only to the following examples.

[0017] Such as figure 1 As shown, the silver / silver chloride electrode includes: a support layer, a silver layer, a protective layer, and a silver chloride layer.

[0018] The specific implementation steps are as follows: After ultrasonic cleaning and plasma surface treatment of PET, a 3 μm silver layer is plated on the PET sheet by vacuum evaporation plating, and then a mask plate is used to protect the part that needs to be chlorinated into silver chloride, and magnetron sputtering is used to The nickel-plated layer is 0.3 μm, and the silver layer after nickel plating is placed in potassium dichromate, hydrochloric acid, and potassium chloride solution, and the silver chloride layer is prepared by oxidation treatment. Finally, the prepared silver / silver chloride electrode is used for pure Wash it with ...

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Abstract

The invention discloses a silver / silver chloride electrode slice and a preparation technology thereof, and belongs to the field of electrochemical sensors. The silver / silver chloride electrode slice comprises a supporting layer, a silver layer, a protection layer and a silver chloride layer. The preparation method for the silver / silver chloride electrode slice comprises plating the silver layer on the supporting layer through a vacuum silver-plating manner, then covering the protection layer on a part of the silver layer, and finally preparing the silver chloride layer through a chemical oxidation process, so as to prepare the silver / silver chloride electrode slice. The prepared silver / silver chloride electrode slice overcomes the disadvantages that a conventional silver / silver chloride electrode slice is low in precision, short in response time, bad in signal stability among batches, not suitable for organic environment and tedious in preparation technology, and the like. The silver / silver chloride electrode slice is stable in electric potential performance, high in precision, low in signal to noise ratio, low in impedance, short in response time, low in production cost, high in production efficiency and suitable for large-scale industrial production.

Description

technical field [0001] The invention relates to the technical field of electrochemical sensors, in particular to a silver / silver chloride electrode sheet and a preparation process thereof. Background technique [0002] Silver / silver chloride (Ag / AgCl) electrode is a common reference electrode, which has the advantages of constant electrode potential, low polarization, low impedance, and high exchange current density. Because it can accurately detect bioelectrical signals, it has been widely used in medical EEG, ECG, and biochemical analysis dry film bioelectrical signal recording electrodes. The commonly used silver / silver chloride electrode preparation method at present, as patent CN103192070A, coats the conductive ink of silver and silver chloride on the dielectric substrate, prints and prepares silver / silver chloride electrode, or as patent CN101084829A silver and silver chloride The powder particles are mixed and pressure sintered to make a silver / silver chloride electr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N27/30
CPCG01N27/301
Inventor 吴国清陈汉杰向东东
Owner 吴国清
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