Electrical property, crystal structure and oxygen nonstoichiometry of La1-xSrxCo0.2Fe0.8O3-delta

Authors
Mineshige, A Izutsu, J Nakamura, M Nigaki, K Kobune, M Fujii, S Inaba, M Ogumi, Z Yao, T
Citation
A. Mineshige et al., Electrical property, crystal structure and oxygen nonstoichiometry of La1-xSrxCo0.2Fe0.8O3-delta, ELECTROCH, 68(6), 2000, pp. 515-518
Citations number
19
Categorie Soggetti
Physical Chemistry/Chemical Physics","Chemical Engineering
Journal title
ELECTROCHEMISTRY
ISSN journal
13443542 → ACNP
Volume
68
Issue
6
Year of publication
2000
Pages
515 - 518
Database
ISI
SICI code
1344-3542(200006)68:6<515:EPCSAO>2.0.ZU;2-C
Abstract
Electrical conductivity of mixed conducting perovskite-type oxide, La1-xSrx Co0.2Fe0.8O3-delta (LSCF, 0.4 less than or equal to x less than or equal to 0.7) was determined as functions of Sr-content (x), temperature (T) and ox ygen partial pressure [P (O-2)]. Crystal structure and oxygen nonstoichiome try (delta) of LSCF was evaluated and correlated with its electrical proper ty. The electrical conductivity (sigma) in LSCF was greatly affected by oxy gen nonstoichiometry and B-O-B angle (B; B-site elements) in the crystal.