Electrolytic cells for studying the electrochemical behavior of electroactive oxides in molten electrolytes

Abstract

The invention relates to an electrolytic tank for researching an electrochemical behavior of an electroactive oxide in a fused electrolyte. According to the technical scheme, the electrolytic tank comprises a ZrO2 pipe (3), a reference electrode (15), an auxiliary electrode (1) and a solid working electrode (2), wherein the fused electrolyte is put in the closed end of the ZrO2 pipe (3); the auxiliary electrode (1) and the reference electrode (15) are annularly sintered on the outer surface of the closed end of the ZrO2 pipe (3) in sequence from bottom to top; the upper boundary of the auxiliary electrode (1) is flush with the liquid level of the fused electrolyte in the ZrO2 pipe (3); the reference electrode (15) is tightly adjacent to the upper boundary of the auxiliary electrode (1); the lower end of the solid working electrode (2) is inserted into the fused electrolyte; one end of a reference electrode wire (4), one end of an auxiliary electrode wire (7) and one end of a solid working electrode wire (8) are correspondingly connected with the reference electrode (15), the auxiliary electrode (1) and the solid working electrode (2). The electrolytic tank for researching the electrochemical behavior of the electroactive oxide in the fused electrolyte has the characteristics of simple structure, easiness in operation, high interference resistance and more stable and reliable test result.

Description

technical field

[0001] The invention belongs to the technical field of electrolytic cells. In particular, it relates to an electrolytic cell for studying the electrochemical behavior of electroactive oxides in a molten electrolyte. Background technique

[0002] Electrolysis of metal oxides in molten electrolytes is a fundamental method for the green preparation of metals. Metal oxides generally dissociate into metal cations and oxygen ions in the molten electrolyte. During electrolysis, metal cations are reduced at the cathode to obtain metals; while oxygen ions are oxidized at the anode to produce oxygen. In order to formulate a reasonable electrolysis process route, it is necessary to grasp the redox law of the electroactive ions corresponding to the metal oxides prepared in the molten electrolyte.

[0003] At present, the research on the electrochemical behavior of electroactive substances is generally carried out in a three-electrode electrolytic cell system. However...

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