Abstract
Products of anodic dissolution of uranium metal and the cathodic reduction of uranium(IV) ions in a molten eutectic mixture of lithium and potassium chlorides are studied at 450°C using x-ray absorption spectroscopy. It is shown that UCl 3−6 — ions form in the melt as a result of the metal’s anodic dissolution, and the metal-ligand distance in the complex ion is 0.284 nm. No complex ions of another configuration are found to form. Cathodic reduction of the UCl 2−6 — ions also yields the UCl 3−6 — ions, with longer U-Cl bonds.
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Original Russian Text © V.A. Volkovich, I.B. Polovov, C.A. Sharrad, I. May, J.M. Charnock, 2007, published in Elektrokhimiya, 2007, Vol. 43, No. 8, pp. 1026–1030.
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Volkovich, V.A., Polovov, I.B., Sharrad, C.A. et al. Uranium-involving electrode processes in chloride melts: An x-ray absorption spectroscopy study. Russ J Electrochem 43, 977–980 (2007). https://doi.org/10.1134/S1023193507080174
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DOI: https://doi.org/10.1134/S1023193507080174