Investigation by impedance and F-19-NMR spectroscopies of a new oxyfluoride solid solution range in the NaF-BiF3-Bi2O3 system

Authors
Serov, TV Zakirov, RY Ardasknikova, EI Dolgikh, VA El Omari, M Senegas, J Reau, JM
Citation
Tv. Serov et al., Investigation by impedance and F-19-NMR spectroscopies of a new oxyfluoride solid solution range in the NaF-BiF3-Bi2O3 system, SOL ST ION, 138(3-4), 2001, pp. 233-242
Citations number
19
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
SOLID STATE IONICS
ISSN journal
01672738 → ACNP
Volume
138
Issue
3-4
Year of publication
2001
Pages
233 - 242
Database
ISI
SICI code
0167-2738(200101)138:3-4<233:IBIAFS>2.0.ZU;2-8
Abstract
A wide range of fluorite-type oxyfluoride solid solutions is exhibited in t he NaF-BiF3-Bi2O3 system. Starting from the entirely fluoride Na0.5(1-z)Bi0 .5(1+z)F(2+z) solid solution along the NaF-BiF3 line, the range is extended towards BiOF and the various range compositions can be formulated Na0.5(1- z--h)Bi0.5(1+z+h)F2+z-hOh. The transport properties were studied as a funct ion of the anion excess (z) and the oxygen content (h). Correlations were e stablished between F- ion motions at long range determined by impedance spe ctroscopy and motions visualized over the NMR scale time. (C) 2001 Elsevier Science B.V. All rights reserved.