TRACER DIFFUSION STUDY OF BR- MOBILITY IN ALPHA-CUBR

Authors
JOHANSSON JXMZ SKOLD K JORGENSEN JE
Citation
Jxmz. Johansson et al., TRACER DIFFUSION STUDY OF BR- MOBILITY IN ALPHA-CUBR, Solid state ionics, 59(3-4), 1993, pp. 297-300
Citations number
15
Categorie Soggetti
Physics, Condensed Matter","Chemistry Physical
Journal title
Solid state ionics → ACNP
ISSN journal
01672738
Volume
59
Issue
3-4
Year of publication
1993
Pages
297 - 300
Database
ISI
SICI code
0167-2738(1993)59:3-4<297:TDSOBM>2.0.ZU;2-K
Abstract
The tracer diffusion method is used to observe the anion mobility in C uBr, well known to show large mobility for the cations. The anion Br- is found to diffuse with a diffusion coefficient of 1 x 10(-7) cm2/s i n the bcc alpha-phase, comparable to that of Cu+ in the gamma-phase co pper halides. This is several order of magnitudes higher than the ioni c conductivity of ordinary ionic solids and represents the first quant itative information on the diffusion of the relatively immobile anion specie.