XPS and voltammetric studies on La1-xSrxCoO3-delta perovskite oxide electrodes

Citation
P. Wang et al., XPS and voltammetric studies on La1-xSrxCoO3-delta perovskite oxide electrodes, J ALLOY COM, 311(1), 2000, pp. 53-56
Citations number
20
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
JOURNAL OF ALLOYS AND COMPOUNDS
ISSN journal
09258388 → ACNP
Volume
311
Issue
1
Year of publication
2000
Pages
53 - 56
Database
ISI
SICI code
0925-8388(20001012)311:1<53:XAVSOL>2.0.ZU;2-J
Abstract
Nonstoichiometry behavior of La1-xSrxCoO3-delta series perovskite oxides wa s studied by XPS and cyclic voltammetry. The results indicate that the chem ical states of La and Sr in the oxides are barely influenced by their relat ive content. Substitution of Sr for La results in the valence state change of some cobalt ions from Co3+ to Co4+ and the increase of the lattice oxyge n vacancies. (C) 2000 Elsevier Science S.A. All rights reserved.