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The Effect of Electrolyte Composition on the Electrodeposition of Molybdenum from KF—B203—K2Mo04 Melts 2. Voltammetry

M. Makyta, T. A. Utigard, P. Zatko, A. Silný, and M. Chrenková

Institute of Inorganic Chemistry, Slovak Academy of Sciences, SK-842 36 Bratislava


Abstract: Voltammetric experiments have been carried out to determine the effect of the electrolyte composition on the mechanism of electrodeposition of molybdenum from molten KF-B203-K2MoO4 salts. It was confirmed that during the dissolution of potassium molybdate in molten KF-B203 electrolyte both electrochemically active and electrochemically inactive molybdenum-containing species are created. Moreover, at least two electrochemically active molybdenum compounds are present with the first one dominating for n(Mo)/n(B) ratios up to 0.4 and the second one dominating for ratios above 0.66. The electrodeposition of molybdenum metal from the electrochemically active species is a reversible six-electron electrochemical reaction. Results in the above system obtained by the chronopotentiometric method are described in Part I of this series.

Full paper in Portable Document Format: 514a208.pdf


Chemical Papers 51 (4) 208–212 (1997)

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