Szczegóły publikacji
Opis bibliograficzny
Defect disorder of undoped and Sr-doped $LaCoO_{3-\delta}$ / Janusz Nowotny, Mieczysław RĘKAS // Bulletin of the Polish Academy of Sciences. Chemistry ; ISSN 0239-7285. — 2002 — vol. 50 no. 1, s. 93–108. — Bibliogr. s. 107–108, Summ.
Autorzy (2)
- Nowotny J.
- AGHRękas Mieczysław
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 10372 |
|---|---|
| Data dodania do BaDAP | 2002-10-14 |
| Rok publikacji | 2002 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Czasopismo/seria | Bulletin of the Polish Academy of Sciences, Chemistry |
Abstract
The paper considers defect disorder models of undoped lanthanum cobaltate, LaCoO3-delta, and Sr-doped LaCoO3-delta, La1-xSrxCoO3-delta (LSC), involving both random defect model and cluster defect model. The models are derived using the nonstoichiometry data reported in the literature. Doubly ionized oxygen vacancies are assumed to be the predominant ionic defects within the entire range of compositions. The effect of Sr content on defect disorder of LSC is discussed in terms of both defect models. Impact of segregation on surface composition of ionic solids in general and LSC materials in particular is briefly outlined. The effect of the interface layer on functional properties of LSC as electrode material is briefly discussed.
