| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1298444 | Solid State Ionics | 2006 | 6 Pages |
Abstract
Effects of oxygen off-stoichiometry have been investigated on CuFeO2+δ delafossite-type powders prepared by solid state reaction. Materials annealed at different temperatures under air atmosphere were compared. Thermogravimetric analysis coupled with X-ray structural analysis showed that a powdered CuFeO2 can be oxidized up to CuFeO2+δ with δ = 0.18. Electrical measurements confirm the existence of oxidized CuFeO2+δ phases. Particular attention is paid to the correlation between oxidation process and phase stabilities in the CuFeO2 and copper spinel phase system.
Related Topics
Physical Sciences and Engineering
Chemistry
Electrochemistry
Authors
E. Mugnier, A. Barnabé, P. Tailhades,