Ion conduction in single crystals of the hollandite-type one-dimensional superionic conductor NaxCrxTi8-xO16 (x=1.7)

Authors
Yoshikado, S Michiue, Y Onoda, Y Watanabe, M
Citation
S. Yoshikado et al., Ion conduction in single crystals of the hollandite-type one-dimensional superionic conductor NaxCrxTi8-xO16 (x=1.7), SOL ST ION, 136, 2000, pp. 371-374
Citations number
8
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
SOLID STATE IONICS
ISSN journal
01672738 → ACNP
Volume
136
Year of publication
2000
Pages
371 - 374
Database
ISI
SICI code
0167-2738(200011)136:<371:ICISCO>2.0.ZU;2-4
Abstract
Ion conduction of Na+ ions in single crystals of a one-dimensional superion ic conductor, Na-Cr-priderites NaxCrxTi8-xO16 (x=1.7), has been studied by an impedance spectroscopy method. In the low-frequency region, a frequency- independent conduction process was observed. The conduction process was the rmally activated and the value of the total activation energy was about 0.2 88 eV. The value of the frequency-independent ion conductivity was about 2 x 10(-5) S/cm at room temperature and 10(-2) S/cm at 200 degreesC. (C) 2000 Elsevier Science B.V. All rights reserved.