Abstract
The behavior of molybdenum(III), tungsten(IV), and uranium(VI) ions in NaCl-2CsCl-eutectic-mixture-based melt at 550°C is studied by spectroelectrochemical method. Anodic oxidation of MoCl 3−6 and WCl 2−6 yields melt-soluble chloride compounds MoCl 2−6 and WCl −6 respectively. It is shown that the electrochemical recharging in the Mo(III)/Mo(IV) system is reversible; the formal standard potential E*Mo(IV)/Mo(III)and the Gibbs energy \( \Delta G_{MoCl_4 (melt)}^* \) are evaluated. The cathodic reduction of U(VI) yields U(V) ions. The cathodic reduction of W(IV) ion does not yield melt-soluble tungsten compounds of lower oxidation state.
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Potapov, A.M., Kochedykov, V.A., and Smirnov, M.V., Rasplavy, 1989, no. 4, p. 107.
Nagai, T., Uehara, A., Fujii, T., Shirai, O., Sato, N., and Yamana, H., J. Nucl. Sci. Technol., 2005, vol. 42, p. 1025.
Nagai, T., Fujii, T., Shirai, O., and Yamana, H., J. Nucl. Sci. Technol., 2004, vol. 41, p. 690.
Aleksandrov, E.P., Alekseev, A.B., Vasin, B.D., and Raspopin, S.P., Izv. Vuzov. Tsvet. Metallurgiya, 1981, no. 1, p. 66.
Arkhipov, P.A., Baraboshkin, A.N., Valeev, Z.I., and Martem’yanova, Z.S., Elektrokhimiya, 1990, vol. 26, p. 1555.
Gabriel, J.C., Vincent, D., Bouteillon, J., Poignet, J.C., Volkovich, V.A., and Griffiths, T.R., Electrochim. Acta, 1999, vol. 44, p. 4619.
Vasin, B.D., Volkovich, V.A., Danilov, D.A., and Aleksandrov, D.E., Rasplavy, 2006, no. 3, p. 40.
Volkovich, V.A., May, I., Charnock, J.M., and Lewin, B., Phys. Chem. Chem. Phys., 2002, vol. 4, p. 5753.
Volkovich, V.A., Vasin, B.D., Tropin, O.A., and Danilov, D.A., Rasplavy, 2009, no. 5, p. 31.
Vasin, B.D., Ivanov, V.A., Shul’man, I.V., and Raspopin, S.P., Izv. Vuzov. Tsvet. Metallurgiya, 1987, no. 2, p. 68.
Roine, A., Lamberg, P., and Mansikka-ato, J., HSC, version 6.12. Outec Research Oy. 2007.
Volkovich, V.A., Vasin, B.D., Aleksandrov, D.E., and Khabibullin, T.K., Rasplavy, 2009, no. 5, p. 27.
Volkovich, V.A., Aleksandrov, D.E., Vasin, B.D., Khabibullin, T.K., and Mal’tsev, D.S., Rasplavy, 2009, no. 6, p. 68.
Nekrasova, N.P. and Komarov, V.E., Radiokhimiya, 1983, vol. 25, p. 233.
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Original Russian Text © V.A. Volkovich, B.D. Vasin, D.A. Danilov, D.E. Aleksandrov, 2010, published in Elektrokhimiya, 2010, Vol. 46, No. 6, pp. 679–685.
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Volkovich, V.A., Vasin, B.D., Danilov, D.A. et al. The application of the spectroelectrochemical method in the studies of molybdenum, tungsten, and uranium in chloride melts. Russ J Electrochem 46, 640–645 (2010). https://doi.org/10.1134/S1023193510060078
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DOI: https://doi.org/10.1134/S1023193510060078