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Electrolytic cell for corrosion electrochemical measurement

An electrolytic cell and electrochemical technology, applied in the direction of measuring devices, weather resistance/light resistance/corrosion resistance, scientific instruments, etc., can solve the problems of inconvenient use and unsatisfactory structural design, so as to prevent moisture volatilization, convenient and fast sealing , Guarantee the effect of sealing and insulation

Inactive Publication Date: 2014-07-30
SHANGHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, while preparing the working electrode conveniently and quickly and ensuring the sealing of the working electrode, it is particularly critical to realize the constant temperature electrochemical measurement of the material from room temperature to boiling conditions. However, the existing electrolytic test equipment for electrochemical measurement is not convenient to use. The structural design is not ideal

Method used

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  • Electrolytic cell for corrosion electrochemical measurement
  • Electrolytic cell for corrosion electrochemical measurement
  • Electrolytic cell for corrosion electrochemical measurement

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] see figure 1 , figure 2 and image 3 , an electrolytic cell for electrochemical measurement of corrosion, has an electrolytic cell body 1 with a sealed inner cavity, and a temperature control device is provided outside the electrolytic cell body 1 to maintain the temperature of the electrolyte in the electrolytic cell body 1 At the preset temperature level, the top of the electrolytic cell body 1 is provided with at least three nozzles at the top of the electrolytic cell, the top nozzles of the electrolytic cells are distributed along a straight line, the top nozzles of each electrolytic cell are all sealed, and the side elevation of the electrolytic cell body 1 is still There is an opening 2 on the side wall of the electrolytic cell, the centerline of the opening 2 on the side wall of the electrolytic cell is on the same space plane as the centerlines of the top nozzles of the three electrolytic cells, and a working electrode 5 is fixed to the opening 2 on the side w...

Embodiment 2

[0035] The technical solution of this embodiment is basically the same as that of Embodiment 1, especially in that:

[0036]In this embodiment, the top of the electrolytic cell body 1 is provided with four nozzles of the electrolytic cell, and a condensation device is installed in the top nozzle of the fourth electrolytic cell. 1 in the electrolyte. In this embodiment, when the experiment requires that the temperature be higher than room temperature, or even reach the boiling temperature, the electrolytic cell can be designed as four nozzles, and the reference electrode 6, the auxiliary electrode 7, the temperature measuring device 8 and the Condenser. That is, the reference electrode 6 is installed at a position close to the working electrode 5 through the top nozzle of the first electrolytic cell of the electrolytic cell, and the tip of the Lugkin capillary is aligned with the working electrode 5 . The auxiliary electrode 7 is placed at a position horizontal to the working...

Embodiment 3

[0040] The technical solutions of this embodiment are basically the same as those of the foregoing embodiments, and the special features are:

[0041] In the present embodiment, the top of the electrolytic cell body 1 is provided with five electrolytic cell nozzles, an aerator is installed in the fourth electrolytic cell top nozzle, and a condensing device is installed in the fifth electrolytic cell top nozzle; Inert gas is introduced into the inner cavity of the cell body 1, and the condensing device condenses the water vapor into liquid water, which flows back into the electrolyte solution in the cell body 1 of the electrolytic cell. In this embodiment, when the experiment requires that the temperature be higher than room temperature, an inert gas needs to be introduced to remove the oxygen in the solution. At this time, the electrolytic cell can be designed as four nozzles, and the reference electrode 6, the auxiliary electrode 7, the temperature measuring device 8 and the ...

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Abstract

The invention discloses an electrolytic cell for electrochemical measurement of corrosion. It has an electrolytic cell body with a sealed inner cavity, and a temperature control device is arranged outside the electrolytic cell to keep the temperature of the electrolyte at a preset temperature level. The electrolytic cell body There are multiple top nozzles of the electrolytic cell on the top, and the reference electrode, auxiliary electrode and temperature measuring device are respectively installed. The side elevation of the electrolytic cell body is provided with an opening on the side wall of the electrolytic cell, and the pressing part of the fixture is made of insulating material. , and press the parts to press the working electrode. The working electrode, reference electrode and auxiliary electrode are externally connected to the electrochemical workstation. The temperature-sensing test end of the temperature measuring device is immersed in the electrolyte to measure the temperature of the electrolyte in real time. During the test, the electrolyte in the cell body of the electrolytic cell floods the electrode end of the reference electrode and the electrode end of the auxiliary electrode. It can realize rapid preparation of working electrode and test experimental device assembly, has good sealing of working electrode, and satisfies constant temperature electrochemical measurement from room temperature to boiling conditions.

Description

technical field [0001] The invention relates to an electrolysis device, in particular to an electrolysis test experimental device for electrochemical measurement. Background technique [0002] Electrolytic cells are often used in material corrosion research. The quality of the working electrode preparation directly affects the accuracy and correctness of the experimental results. Epoxy resin sealing samples often leave tiny gaps or gaps between the working electrode and epoxy resin. Bubbles are often invisible to the naked eye, and as a result, crevice corrosion and other conditions are caused during the test, which affects the experimental results. On the other hand, the tedious sample sealing process often takes a long time, and the convenient and rapid preparation of the working electrode can greatly improve the efficiency of corrosion electrochemical research. Many tests are required to be carried out under conditions higher than room temperature. For example, the inter...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N17/02
Inventor 李谋成韩沛洪马荣耀王士栋
Owner SHANGHAI UNIV