Abstract
Oxygen has been intercalated into the pyrochlore Ce2Zr2O7 by heating under oxygen at a moderate temperature. A composition approaching fluorite (Ce2Zr2O7.97) has been obtained while retaining pyrochlore cation ordering. Whereas in flourite all oxide ions are in tetrahedral sites, the oxygen-rich pyrochlore exhibits vacancies in some tetrahedral sites and occupancy of a new trigonal site. The latter arises from oxide ions in octahedral 32e sites within the pyrochlore cation array. (C) 1999 Academic Press.
| Original language | English |
|---|---|
| Pages (from-to) | 56-62 |
| Number of pages | 7 |
| Journal | Journal of Solid State Chemistry |
| Volume | 148 |
| Publication status | Published - 15 Nov 1999 |
Keywords
- CHEMICAL INTERCALATION
- ELECTROCHEMICAL OXIDATION
- LA2CUO4