A test fixture for a solution-resistant electrochemical material electrode

Abstract

The invention relates to a testing clamp of a liquid corrosion-resisting electrochemical material electrode. The testing clamp comprises a testing material coating piece, a polytetrafluoroethylene Pt piece electrode, a clamp and a testing material, wherein one end of the polytetrafluoroethylene Pt piece electrode is an electrode leading-out terminal; the other end of the polytetrafluoroethylene Pt piece electrode is provided with a Pt piece; the clamp is made of an acid-alkali corrosion-resisting material; the clamp is used for clamping a polytetrafluoroethylene column of the polytetrafluoroethylene Pt piece electrode; an interface is formed by the clamp and the polytetrafluoroethylene Pt piece electrode. According to the testing clamp disclosed by the invention, pluggable movable metal connection is formed by an electrode of the testing material coating piece and the Pt piece of the polytetrafluoroethylene Pt piece electrode by inserting the electrode of the testing material coating piece into the interface, so that quick inserting and plugging of the testing material coating piece are realized, quick detection is formed, the speed is quick, the operation is convenient, variation of environment parameters is not easy to cause, and testing data are accurate; in addition, the testing clamp of the liquid corrosion-resisting electrochemical material electrode has good corrosion resistance on an electrolyte solution, and a leading-out metal guide wire which is immersed into the electrolyte solution does not react with testing electrolyte solutions such as acid and alkali, so that the accuracy, the stability and the reliability of experimental testing are obviously improved.

Description

technical field [0001] The invention relates to a test fixture for researching electrodes in a three-electrode (or two-electrode) test solution system in the electrochemical field, in particular to a test fixture for a solution-resistant electrochemical material electrode. Background technique [0002] When testing the electrochemical performance parameters of a material electrode in a liquid electrolyte (acid-base salt solution), it is often necessary to immerse the material electrode in the electrolyte for measurement. The lead-out of the material electrode is to clamp the material with crocodile clips or weld a copper wire on the bottom electrode of the test material to lead out to the external circuit. The disadvantage of this method is that the contact resistance between the test material and the lead-out end is large, especially the crocodile clip or the welded copper wire is metal. It is easy to react with the electrolyte, so the test results are not only affected by ...

AI Technical Summary

Problems solved by technology

The lead-out of the material electrode is to clamp the material with crocodile clips or weld a copper wire on the bottom electrode of the test material to lead out to the external circuit. The disadvantage of this method is that the contact resistance between the test material and the lead-out end is large, especially the crocodile clip or the welded copper wire is metal. It is easy to react with the electrolyte, so the test results are not only affected by the contact resistance, especially the interference factor of the reaction between the lead wire and the electrolyte, the accuracy and stability are not good

[0003] In addition, the electrochemical performance parameters of the test material electrode in the liquid electrolyte (acid-base salt solution) need to be measured in the same environment, and the results can be given after multiple measurements. In the existing measurement, since each measurement must be connected Detection system, slow speed, inconvenient operation, prone to changes in environmental parameters, resulting in inaccurate data

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