Gopalakrishnan, J. ; Bhat, Vasudeva ; Raveau, B. (1987) AILaNb2O7: a new series of layered perovskites exhibiting ion exchange and intercalation behaviour Materials Research Bulletin, 22 (3). pp. 413-417. ISSN 0025-5408
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Official URL: http://linkinghub.elsevier.com/retrieve/pii/002554...
Related URL: http://dx.doi.org/10.1016/0025-5408(87)90060-2
Abstract
A new series of layered perovskite oxides, AILaNb2O7 (A = Li, Na, K, Rb, Cs, NH4) constituting n = 2 members of the family A A'n-1BnO3n+1, has been prepared. Their structure consists of double perovskite slabs interleaved by A atoms. Hydrated HLaNb2O7 is formed by topotactic proton exchange of the A atoms in ALaNb2O7 (A = K, Rb, Cs). The hydrate readily loses water to give anhydrous HLaNb2O7 which is isostructural with RbLaNb2O7. HLaNb2O7 exhibits Bronsted acidity forming intercalation compounds with bases such as n-octylamine and pyridine.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| Keywords: | Niobates; Perovskites; Lanthanium |
| ID Code: | 12747 |
| Deposited On: | 10 Nov 2010 08:41 |
| Last Modified: | 03 Jun 2011 05:54 |
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