| 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 : €ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒA j B k C m D n O 7+´ €ƒ€ƒ€ƒ€ƒ€ƒ(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<´‰ 1.5. |
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