CATION-EXCHANGE RATES AND MOBILITY IN ALUMINUM-DOPED LITHIUM ORTHOSILICATE - HIGH-RESOLUTION LI-6 NMR RESULTS

Authors
STEBBINS JF XU Z VOLLATH D
Citation
Jf. Stebbins et al., CATION-EXCHANGE RATES AND MOBILITY IN ALUMINUM-DOPED LITHIUM ORTHOSILICATE - HIGH-RESOLUTION LI-6 NMR RESULTS, Solid state ionics, 78(1-2), 1995, pp. 1-8
Citations number
30
Categorie Soggetti
Physics, Condensed Matter","Chemistry Physical
Journal title
Solid state ionics → ACNP
ISSN journal
01672738
Volume
78
Issue
1-2
Year of publication
1995
Pages
1 - 8
Database
ISI
SICI code
0167-2738(1995)78:1-2<1:CRAMIA>2.0.ZU;2-2
Abstract
Magic-angle spinning NMR spectra on Li-6 in Li4SiO4, Li4.1Al0.1Si0.9O4 , and Li3.7Al0.1SiO4 resolve multiple lithium cation sites, and, with increasing temperature, show averaging due to exchange of Li+ among si tes. These exchange rates predict measured ionic conductivity accurate ly. Doping with aluminum increases Li mobility significantly.