OXIDE-ION CONDUCTION IN SOLID-SOLUTIONS LN(1-X)SR(X)COO(3-DELTA)(LN=LA,PR,ND)

Authors
KHARTON VV NAUMOVICH EN VECHER AA NIKOLAEV AV
Citation
Vv. Kharton et al., OXIDE-ION CONDUCTION IN SOLID-SOLUTIONS LN(1-X)SR(X)COO(3-DELTA)(LN=LA,PR,ND), Journal of solid state chemistry, 120(1), 1995, pp. 128-136
Citations number
24
Categorie Soggetti
Chemistry Inorganic & Nuclear","Chemistry Physical
Journal title
Journal of solid state chemistry → ACNP
ISSN journal
00224596
Volume
120
Issue
1
Year of publication
1995
Pages
128 - 136
Database
ISI
SICI code
0022-4596(1995)120:1<128:OCISL>2.0.ZU;2-G
Abstract
Ln(Sr)CoO3-delta(Ln = La, Pr, Nd) solid solutions as high-temperature mixed ion and electron conductors are described. Electrical conductivi ty and oxygen permeability as function of temperature and oxygen parti al pressure were measured. A model for the oxygen flow density through the mixed conductor caused by chemical potential gradient is proposed . Values of partial oxide ionic conductivity were calculated. It was f ound that oxygen permeability decreases in the La > Pr > Nd sequence. (C) 1995 Academic Press,lnc.