Electrochemical behavior of Mo(III) ions in NaCl-KCl melts

Aleksandr A. Chernyshev

doi:10.15826/elmattech.2025.4.057

Electrochemical behavior of Mo(III) ions in NaCl-KCl melts

Aleksandr A. Chernyshev

Abstract

In this study, the exchange current density and the transfer coefficient of molybdenum in NaCl-KCl molten salt were accurately obtained using Tafel plot and linear polarization. The exchange current density for Mo⁰/Mo³⁺ redox couple was found to be 74 ± 0.7 mA/cm² at 720 °C and 4.5 wt. % MoCl₃. The cathodic transfer coefficient was measured to be 0.7 ± 0.02. The concentration dependence of the exchange current density was also investigated. The diffusion coefficient was determined to be 8.052 · 10^–5 cm²/s and 4.012 · 10^–5 cm²/s by linear and square wave voltammetry, respectively.

Keywords

refractory metal; electroreduction; electrolysis; kinetic parameters; molybdenum

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DOI: https://doi.org/10.15826/elmattech.2025.4.057

Copyright (c) 2025 Aleksandr A. Chernyshev

This work is licensed under a Creative Commons Attribution 4.0 International License.

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