Uma, S. ; Gopalakrishnan, J. (1992) A2MoTiO7-x(A = rare earth or Y) : a new series of oxide pyrochlores prepared by topochemical reduction of A2MoTiO8 scheelites Journal of Alloys and Compounds, 184 (2). pp. 343-349. ISSN 0925-8388
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Official URL: http://www.sciencedirect.com/science/article/pii/0...
Related URL: http://dx.doi.org/10.1016/0925-8388(92)90509-8
Abstract
A series of anion-deficient oxides of the formula A2MoTiO7-x (x=0.5), where A=Sm, Gd, Tb, Dy, Ho, Er, Lu and Y, has been prepared by reduction of A2MoTiO8 scheelites. The scheelite-to-pyrochlore conversion is reversible, indicating that the reaction is likely to be topochemical. The oxidation states of molybdenum and titanium are most probably Mo(III) and Ti(IV) for the limiting composition of the pyrochlores A2MoTiO6.5. The new pyrochloreds are non-metallic and paramagnetic as expected.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| ID Code: | 84352 |
| Deposited On: | 25 Feb 2012 05:49 |
| Last Modified: | 25 Feb 2012 05:49 |
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