| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1297517 | Solid State Ionics | 2006 | 5 Pages |
Abstract
Oxide compositions in the system Sr–Co–O were prepared by solid-state reaction. The oxide–oxygen reactions were investigated by thermo-gravimetric measurements. Equilibration was controlled by an amperometric lambda sensor. Thermodynamic data for the oxide–oxygen reaction were calculated. For the reaction CoO/Co3O4 with complete change of crystal structure between ferrite-and NaCl-types, the amount of oxygen exchanged (δ = 1), and the absolute values of changes in enthalpy and entropy are the highest. The lowest values were observed for the partial molar enthalpy of the solid-solution reaction of oxygen with the stable perovskite phase of Sr0.965Ce0.035CoO2.535+n.
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Authors
E. Girdauskaite, H. Ullmann, V. Vashook, M. Bülow, U. Guth,