Four thallium(I) uranates(VI), their preparation, structure and properties / Volkovich V.A., May I., Griffiths T.R., Charnock J.M., Lewin B. // Journal of Nuclear Materials. - 2005. - V. 344, l. 1-3. - P. 73-78.

ISSN:

00223115

Type:

Conference Paper

Abstract:

Four thallium(I) uranates(VI), Tl4UO5, Tl 2UO4, Tl2U2O7 and Tl 2U3O10, were prepared and their IR, and, for the first time, their Raman, electronic and X-ray absorption (EXAFS) spectra have been measured. These uranates are thermally stable under nitrogen up to 660 °C but above this temperature they decompose and their uranium content increases, due to loss of Tl2O. The thermal stability of these uranates increases with decreasing thallium content. Comparison with the reported values for the standard enthalpies of formation of the corresponding alkali metal uranates, which are essentially cation independent, allows suggested values for the above uranates, respectively, of -2437, -1900, -3182, and -4437 kJ mol-1. Structural information and atom arrangements were obtained from analysis of powder XRD and EXAFS spectroscopy measurements. U-O distances, both primary and secondary, were obtained from EXAFS measurements and these were essentially identical with those calculated from vibrational IR spectra. © 2005 Elsevier B.V. All rights reserved.

Author keywords:

Index keywords:

Enthalpy; Infrared radiation; Infrared spectroscopy; Nuclear fuels; Raman scattering; Spectroscopic analysis; Thermodynamic stability; Uranium compounds; X ray powder diffraction; Electronic and X-ray

DOI:

10.1016/j.jnucmat.2005.04.019

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https://www.scopus.com/inward/record.uri?eid=2-s2.0-23744442941&doi=10.1016%2fj.jnucmat.2005.04.019&partnerID=40&md5=91964645649ea59f9aa5accafca328d5

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Link	https://www.scopus.com/inward/record.uri?eid=2-s2.0-23744442941&doi=10.1016%2fj.jnucmat.2005.04.019&partnerID=40&md5=91964645649ea59f9aa5accafca328d5
Affiliations	Department of Rare Metals, Ural State Technical University - UPI, Ekaterinburg, 620002, Russian Federation; Centre for Radiochemistry Research, Department of Chemistry, University of Manchester, Manchester M13 9PL, United Kingdom; Redston Trevor Consulting, Ltd., Leeds LS17 8RF, United Kingdom; CCLRC Daresbury Laboratory, Warrington WA4 4AD, United Kingdom; British Nuclear Fuels Plc, Research and Technology, Sellafield, Cumbria CA20 1PG, United Kingdom
References	Volkovich, V.A., Griffiths, T.R., Fray, D.J., Thied, R.C., (2001) Phys. Chem. Chem. Phys., 3, p. 5182; Volkovich, V.A., Griffiths, T.R., Fray, D.J., Fields, M., (1998) Vibr. Spectrosc., 17, p. 83; Volkovich, V.A., Griffiths, T.R., Thied, R.C., (2001) Vibr. Spectrosc., 25, p. 223; Prignet, J., Grislain, B., (1964) Compt. Rend., 258, p. 1814; Giridharan, A.S., Udupa, M.R., Aravamudan, G., (1974) Z. Anorg. Allg. Chem., 403, p. 211; Giridharan, A.S., Udupa, M.R., Aravamudan, G., (1974) Z. Anorg. Allg. Chem., 407, p. 345; Jayadevan, N.C., Chadha, A., Chackraburtty, D.M., Bhabha, A.E.C., (1976) At. Res. Cent. Rep. (B.A.R.C.-866), 7p; (1977) Chem. Abs., 86, p. 64720; Sali, S.K., Kulkarni, N.K., Sampath, S., Jayadevan, N.D., (1993) Proc. 9th Natl. Symp. Therm. Anal., p. 325. , P.V. Ravindran (Ed.) Indian Therm. Anal. Soc., Bombay; Chawla, K.L., Misra, N.L., Jayadevan, N.C., (1988) J. Nucl. Mater., 154, p. 181; Sali, S.K., Iyer, V.S., Jayanthi, K., Sampath, S., Venugopal, V., (1996) J. Alloys Compd., 237, p. 49; Aravamudan, G., Giridharan, A.S., Ramadass, N., (1978) Z. Anorg. Allg. Chem., 446, p. 246; Banerjee, A., Prasad, R., Venugopal, V., (2001) J. Alloys Compd., 322, p. 265; Griffiths, T.R., Volkovich, V.A., Fray, D.J., Fields, M., (1998) Dyes Pigments, 39, p. 139; Griffiths, T.R., Volkovich, V.A., (1999) J. Nucl. Mater., 274, p. 229; Kindyakov, P.S., Plyuschev, V.E., Stepina, S.B., Fyodorov, P.I., Shakhno, I.V., Korovin, S.S., Korshunov, B.G., Kislyakov, I.P., (1969) Chemistry and Technology of Rare and Dispersed Elements (In Russian), 2. , Vysshaya Shkola Moscow; Spitsyn, V.I., Kovba, L.M., Tabachenko, V.V., Mikhailov, Yu.N., (1982) Izv. Akad. Nauk SSSR, Ser. Khim., p. 807; Hoekstra, H., Siegel, S., (1964) J. Inorg. Nucl. Chem., 26, p. 693; Glebov, V.A., (1981) Koord. Khim., 7, p. 388
Correspondence Address	Griffiths, T.R.; Redston Trevor Consulting, Ltd., Leeds LS17 8RF, United Kingdom; email: T.R.Griffiths@chem.leeds.ac.uk
Editors	Konings R.J.M.
Conference name	Proceedings of the 11th International Symposium on Thermodynamics of Nuclear Materials
Conference date	6 September 2004 through 9 September 2004
Conference code	65390
CODEN	JNUMA
Language of Original Document	English
Abbreviated Source Title	J Nucl Mater
Source	Scopus