Thermodynamic properties of the SrFeO2.5 and SrMnO2.5 brownmillerite-like compounds by means of EMF-measurements

Authors
Tanasescu, S Totir, ND Marchidan, DI
Citation
S. Tanasescu et al., Thermodynamic properties of the SrFeO2.5 and SrMnO2.5 brownmillerite-like compounds by means of EMF-measurements, SOL ST ION, 134(3-4), 2000, pp. 265-270
Citations number
24
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
SOLID STATE IONICS
ISSN journal
01672738 → ACNP
Volume
134
Issue
3-4
Year of publication
2000
Pages
265 - 270
Database
ISI
SICI code
0167-2738(200010)134:3-4<265:TPOTSA>2.0.ZU;2-#
Abstract
The solid-oxide electrolyte galvanic cell method has been employed in order to obtain thermodynamic properties of the brownmillerite-like compounds Sr FeO2.5 and SrMnO2.5 within the temperature range of 1073-1273 K. The standa rd Gibbs energy, the enthalpy and the entropy of formation, as well as the partial pressures of oxygen have been obtained. The experimental thermodyna mic data have been compared to the existing theoretical estimated values. ( C) 2000 Elsevier Science B.V. All rights reserved.