7Li NMR study of phase transition in defect lithium cobaltite / Kellerman D.G., Gabuda S.P., Zhuravlev N.A., Semenova A.S., Denisova T.A., Pletnev R.N. // Bulletin of the Russian Academy of Sciences: Physics. - 2006. - V. 70, l. 7. - P. 1105-1108.

ISSN:
10628738
Type:
Conference Paper
Abstract:
7Li NMR spectra of Li1-xCoO2, (0 ≤ x ≤ 0.4) in the temperature range 100-300K were measured. Sharp narrowing of resonant lines was found at T > 160 K, which was attributed to diffusion of Li ions. It was shown that the temperature at which this narrowing occurs and the diffusion activation energy systematically decrease with an increase in the defection of the lithium sublattice of Li1-xCoO2. The data obtained confirmed the previous suggestion about a relationship between the semiconductor -metal transition in Li1-xCoO2 and the mobility of lithium vacancies. © 2007 by Allerton Press, Inc.
Author keywords:
Index keywords:
Activation energy; Diffusion; Nuclear magnetic resonance spectroscopy; Phase transitions; Vacancies; Lithium cobaltite; Resonant lines; Lithium compounds
DOI:
нет данных
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Affiliations Institute of Solid State Chemistry, Ural Branch, Russian Academy of Sciences, Ekaterinburg 620219, Russian Federation; Institute for Inorganic Chemistry, Siberian Branch, Russian Academy of Sciences, Novosibirsk 630090, Russian Federation
References Imanishi, N., Fujiyoshi, M., (1999) Solid State Ionics, 118, p. 121; Menetrier, M., Saadoune, I., Levasseur, S., Delmas, C., (1999) J. Mater. Chem, 9, p. 1135; Kellerman, D.G., Zhuravlev, N.A., Semenova, A.S., Solid-State Chemistry and Functional Materials-2004 (2004) Proc. All-Russia Conf, p. 185. , Ekaterinburg, Russia, in Russian; Anderson, P.W., (1958) Phys. Rev, 109, p. 1492; Kellerman, D.G., Karelina, V.V., Blinovskov, Y.N., Gusev, A.I., (2002) Russ. J. Inorg. Chem, 47 (6), p. 884; Ouyang, B., Cao, X., (1995) Mat. Res. Soc. Symp. Proc, 369, p. 59; Nakamura, K., Ohno, H., Okamura, K., (2000) Solid State Ionics, 135, p. 143; Mizushima, K., Jones, P.C., (1980) Mater. Res. Bull, 15, p. 783; Abragam, A., (1961) The Principles of Nuclear Magnetism, , Oxford: Clarendon Press
Correspondence Address Kellerman, D.G.; Institute of Solid State Chemistry, Ural Branch, Russian Academy of Sciences, Ekaterinburg 620219, Russian Federation; email: kellerman@ihim.uran.ru
Language of Original Document English
Abbreviated Source Title Bull. Russ. Acad. Sci. Phys.
Source Scopus