Spectroelectrochemical studies of uranium and neptunium in LiCl-KCl eutectic melt / Polovov I.B., Sharrad C.A., May I., Vasin B.D., Volkovich V.A., Griffiths T.R. // ECS Transactions. - 2007. - V. 3, l. 35. - P. 503-511.

ISSN:

19385862

Type:

Conference Paper

Abstract:

Experimental set up for spectroelectrochemical measurements was designed. Uranium(III) ions, UCl6 3-, are formed during anodic dissolution of metallic uranium and prolonged contact of U(IV)-containing melts with uranium metal. UCl4 dissolution in 3LiCl-2KCl melt leads to the formation of UCl6 2- ions. They undergo a two-step electrochemical reduction: U4+→U3+ recharge followed by U deposition. Neptunium(IV) chloride dissolves in 3LiC1-2KC1 melt producing NpCl6 2- ions. Electrochemical reduction of Np(TV) on a glassy carbon electrode results in the formation of NpCl6 3- ions and then leads to the deposition of neptunium metal. Electronic absorption spectra of uranium (III, IV, V and VI) and neptunium (III and IV) species in 3LiC1-2KCl eutectic were measured at 450°C. copyright The Electrochemical Society.

Author keywords:

Index keywords:

eutectic melting; Experimental set ups; International symposium; LiCl-KCl; Molten salts; Spectroelectrochemical; spectroelectrochemical measurements; Actinides; Blood vessel prostheses; Fused salts; S

DOI:

10.1149/1.2798693

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https://www.scopus.com/inward/record.uri?eid=2-s2.0-45249109365&doi=10.1149%2f1.2798693&partnerID=40&md5=14a5f7e44d5b0ed6e8b4cbbadb61ace5

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Link	https://www.scopus.com/inward/record.uri?eid=2-s2.0-45249109365&doi=10.1149%2f1.2798693&partnerID=40&md5=14a5f7e44d5b0ed6e8b4cbbadb61ace5
Affiliations	Department of Rare Metals, Ural State Technical University-UPI, Ekaterinburg, 620002, Russian Federation; Centre for Radiochemistry Research, University of Manchester, Manchester, M13 9PL, United Kingdom; Redston Trevor Consulting, Ltd., Leeds, LS17 8RF, United Kingdom
References	Smirnov, M.V., Potapov, A.M., (1994) Electrochim. Acta, 39, p. 143; Nagai, T., Fujii, T., Shirai, O., Yamana, H., (2004) J. Nucl. Sci. Technol, 41, p. 690; Nagai, T., Uehara, A., Fujii, T., Shirai, O., Sato, N., Yamana, H., (2005) J. Nucl. Sci. Technol, 42, p. 1025; Hermann, J.A., Suttle, J.F., Hoekstra, H.R., (1957) Inorg. Synthesis, 5, p. 143. , McGraw-Hill Book Co. Inc, New York; Volkovich, V.A., May, I., Bhatt, A.I., Griffiths, T.R., Charnock, J.M., Lewin, B., (2003) Proc. Int. Symp. Ionic Liquids, p. 253. , Carry le Rouet, France; Groen, D.M., (1964) Fused salts, p. 331. , McGraw-Hill Book Co. Inc, New York; Volkovich, V.A., May, I., Sharrad, C.A., Kinoshita, H., Polovov, I.B., Bhatt, A.I., Charnock, J.M., Lewin, R.G., (2006) Recent Advances in Actiniae Science, p. 485. , R. Alvarez, N. D. Bryan and I. May, Editors, p, RSC Publishing, London; Volkovich, V.A., Bhatt, A.I., May, I., Griffiths, T.R., Thied, R.C., (2002) J. Nucl. Sci. Technol., Suppl, 3, p. 595; D. M.Gruen, S. Fried, P.Graf and R. L. McBeth, in Proc. 2nd Int. Conf. Peaceful Uses of Atom. Energy, 28, p.112, U.N., Geneva (1958); Barbanel', Y.A., Kotlin, V.N., Kolin, V.V., Chudnovskaya, G.P., (1975) Sov. Radiochimiya, 17, p. 929; Barbanel', Y.A., (1985) Coordination Chemistry of f-elements in Melts, , Energoatomizdat, Moscow , in Russian
Correspondence Address	Polovov, I. B.; Department of Rare Metals, Ural State Technical University-UPI, Ekaterinburg, 620002, Russian Federation
Sponsors	Electrochemical Society, Phys. Anal. Electrochem. Div.;Electrochemical Society, Electrodeposition Division;Electrochemical Society, High Temperature Materials Division;Electrochemical Society, Battery Division;Electrochemical Society, Energy Technology Division
Conference name	15th International Symposium on Molten Salts - 210th ECS Meeting
Conference date	29 October 2006 through 3 November 2006
Conference location	Cancun
Conference code	72280
ISBN	9781566775922
Language of Original Document	English
Abbreviated Source Title	ECS Transactions
Source	Scopus