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The electrochemical reduction of Zr4+(complex) ions in NaCl-KCl-K2ZrF6 molten salt on Pt electrode was investigated using cyclic voltammetry and square wave voltammetry at 1023 K.Two cathodic reduction peaks related to Zr4+/Zr2+ and Zr2+/Zr steps were observed in the cyclic voltammograms.The result was also confirmed by square wave voltammetry.The diffusion coefficient of Zr4+(complex) ions at 1023 K in NaCl-KCl-K2ZrF6 melt,measured by cyclic voltammetry,is about 4.22×10-6 cm2/s.The characterization of the deposits obtained by potentiostatic electrolysis at different potentials was investigated by XRD,and the results were well consistent with the electrochemical reduction mechanism of Zr4+(complex) ions.
The electrochemical reduction of Zr4 + (complex) ions in NaCl-KCl-K2ZrF6 molten salt on Pt electrode was investigated using cyclic voltammetry and square wave voltammetry at 1023 K. Two cathodic reduction peaks related to Zr4 + / Zr2 + and Zr2 + / Zr steps were observed in The cyclic was also confirmed by the square wave voltammetry. The diffusion coefficient of Zr4 + (complex) ions at 1023 K in NaCl-KCl-K2ZrF6 melt, measured by cyclic voltammetry, is about 4.22 × 10-6 cm2 / s. The characterization of the deposits obtained by potentiostatic electrolysis at different potentials was investigated by XRD, and the results were well consistent with the electrochemical reduction mechanism of Zr4 + (complex) ions.