| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 673444 | Thermochimica Acta | 2014 | 5 Pages |
Abstract
•ΔfHi∘ of REBaCo2O6−δ (RE = Gd, Pr) at 298 K were determined as a function of oxygen nonstoichiometry.•ΔfHGdBaCo2O6−δ∘ and ΔfHPrBaCo2O6−δ∘ were found to increase linearly with oxygen nonstoichiometry.•Thermodynamic stability of the double perovskites decreases with oxygen nonstoichiometry.
Standard enthalpies of formation of double perovskites REBaCo2O6−δ (RE = Gd, Pr) from elements, ΔfHi∘, at 298 K were determined as a function of their oxygen content using isothermal solution calorimetry. ΔfHGdBaCo2O6−δ∘ and ΔfHPrBaCo2O6−δ∘ were found to increase linearly with oxygen nonstoichiometry. Such behavior indicates in favor of decrease of relative thermodynamic stability of the double perovskites with oxygen nonstoichiometry.
Related Topics
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Authors
I.L. Ivanov, D.A. Malyshkin, N.S. Tsvetkova, V.V. Sereda, E.A. Kiselev, A.Yu. Zuev, D.S. Tsvetkov,