| 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 :
[in-line-formulae]AjBkCmDnO7+δ (1)[/in-line-formulae]whereA : one or more trivalent rare earth ions and CaB : one or more alkaline earth metalsC, 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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