A shock-absorbing rotating disk electrode device that avoids air bubbles in the center of the electrode

Abstract

The invention provides a shock-absorbing rotary disk electrode device for avoiding bubbles in the center of an electrode and relates to the field of electrode tests. While driving a hollow cylindricalmotor brake device to rotate, an electromotor drives a permanent magnet N-S in the hollow cylindrical motor brake device to rotate, and the rotation of the permanent magnet N-S can drive a permanentmagnet S-N to rotate by magnetic forces; the permanent magnet S-N drives a center shaft to rotate; the low end of the electrode is connected with a vortex board, so that the electrode is closely connected with the vortex board; a liquid within the scope of the vortex board can generate downward vortex, and the vortex can drive the generated bubbles to move downwards, so that a test material is infull contact with the liquid, and the accuracy of test results can be guaranteed.

Description

technical field [0001] The invention relates to the field of electrode testing, in particular to a shock-absorbing rotating disc electrode device which avoids air bubbles in the center of the electrode. Background technique [0002] The Rotating Disk Electrode (RDE) system has circular symmetry and is an ideal electrochemical test instrument, which plays an important role in various methods of studying electrochemical reactions. RDE is a method in which a rotating electrode is in contact with a solution and then electrochemically measured. The advantage of this method is that it can control the movement rate of the fluid according to the rotational speed, that is, the speed of diffusion can be controlled. Therefore, the faster the electrode is rotated, the faster the diffusion rate will be. Therefore, the biggest advantage of RDE is to make the diffusion controllable. Therefore, in the current electrochemical research, it should be the most widely used system. However, t...

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Problems solved by technology

However, there are certain deficiencies in the traditional rotating disc electrode. First, the deviation vibration of the central axis increases the sex-to-noise ratio, which affects the accurate judgment of the test results, reduces the service life of the traditional motor, and increases the maintenance cost of the equipment; During the test, due to the chemical reaction between the test materials, bubbles will be generated in the liquid, and bubbles may be formed during the rotation of the electrode. The bubbles are attached to the central axis and cannot be thrown out by centrifugal force, making the test material Insufficient contact with liquid will affect the accuracy of test results

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