Structure of NaBi3V2O10 and implications for ionic conductivity

Authors
Bliesner, R Uma, S Yokochi, A Sleight, AW
Citation
R. Bliesner et al., Structure of NaBi3V2O10 and implications for ionic conductivity, CHEM MATER, 13(11), 2001, pp. 3825
Citations number
7
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science","Material Science & Engineering
Journal title
CHEMISTRY OF MATERIALS
ISSN journal
08974756 → ACNP
Volume
13
Issue
11
Year of publication
2001
Database
ISI
SICI code
0897-4756(200111)13:11<3825:SONAIF>2.0.ZU;2-2
Abstract
The structure of a good oxygen ion conductor of nominal composition NaBi3V2 O10 was refined using both single-crystal X-ray and powder neutron diffract ion data. The actual composition was found to be Na0.96Bi3.04V2O10.04 for t his centric triclinic structure. The oxygen conductivity had previously bee n attributed to vacancies at one of the oxygen sites. However, we find all oxygen sites to be filled. Instead, it appears that the conductivity result s from the 0.04 excess oxygen existing as interstitials.