| 简介 |
An oxygen excess type metal oxide expressed with the following formula (1) and exhibiting high speed reversible oxygen diffusibility whereby a large amount of excess oxygen is diffused at a high speed and reversibly in a low temperature region : AjBkCmDnO7+δ (1) where A : one or more trivalent rare earth ions and Ca B : one or more alkaline earth metals C, D : one or more oxygen tetra-coordinated cations among which at least one is a transition metal, where j>0, k>0, and, independently, m≥0, n≥0, and j+k+m+n=6, and 0<δ≤1.5. |
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