Electrolytic cell with controllable temperature used for electrochemical measurement

Abstract

The invention provides an electrolytic cell with a controllable temperature used for electrochemical measurement. The electrolytic cell comprises an upper cover (1), a sleeve top board (2), a electrolytic cell container (3), a circulating water sleeve pipe (4), a water inlet (5), a sleeve bottom board (2), a fixed support plate (7), a working electrode (8), a gasket (9), a fastening bolt (10), a sealing ring (11), container legs (12), a water outlet (13), a platinum electrode (14), a rubber plug (15), a salt bridge (16), a reference electrode (17), etc. Only need to align a sample to a central hole of the sleeve bottom board and screw a nut to make the sample contacted and sealed with the sealing ring, with no need of welding and sealing the sample, the electrolytic cell can directly measure electrochemical properties of the samples, and is convenient for replacing the sample. Temperature of the electrolyte can be controlled by externally connecting circulating water, so that interference electrochemical signals caused by eddy current produced by electric heating can be prevented. The whole container is made of corrosion resistant organic glass members; and the connecting parts are adhered with organic glass adhesives, so that the electrolytic cell is convenient in preparation and has long service life.

Description

technical field [0001] The present invention relates to electrochemical testing supporting equipment, in particular to an electrolytic cell for electrochemical testing. Background technique [0002] Electrolytic cells are currently used to test the corrosion resistance of metals or the protective properties of metal surface film layers. A traditional electrolytic cell consists of the following basic components: a working electrode, an electrolyte, an electrolytic cell (four-necked or three-necked flask), an auxiliary electrode (counter electrode) that provides a polarizing current loop, and a reference electrode that measures the electrode potential. Electrochemical corrosion behavior of metals in electrolytes, battery performance, electrochemical synthesis, electrochemical deposition, electrochemical properties of various semiconductor electrodes, coating performance research and testing The commonly used working electrodes are flat electrodes. The wire is often welded or ...

AI Technical Summary

Problems solved by technology

In addition, the temperature control of the electrolytic cells for ordinary electrochemical tests is generally heated directly by a constant temperature water bath. The electric furnace wire or other circuits in the water bath will generate AC eddy currents, which will affect the electrochemical test signals and results.

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