Gopalakrishnan, Jagannatha ; Manthiram, Arumugam (1981) Topochemically controlled hydrogen reduction of scheelite-related rare-earth metal molybdates Journal of the Chemical Society Dalton Transactions (3). pp. 668-672. ISSN 1472-7773
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Official URL: http://pubs.rsc.org/en/content/articlelanding/1981...
Related URL: http://dx.doi.org/10.1039/DT9810000668
Abstract
Scheelite-related α-Ln2Mo3O12(Ln = La, Pr, Nd, Sm, Gd, Tb, or Dy) oxides are reduced by hydrogen at 780-870 K yielding molybdenum (IV) oxides of formula Ln2Mo3O9. The latter crystallize in a tetragonal scheelite (ABO4) type structure where one third of the A sites and a quarter of the anion sites are vacant: Ln2/3(cat)1/3MoO3(an). The reaction Ln2Mo3O12+ 3H2o Ln2Mo3O9(an)3+ 3H2O may be regarded as topochemically controlled, since both the parent and the product phases have scheelite-related structures. Infrared spectra and electrical and magnetic properties of these metastable defect scheelite phases are reported.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Royal Society of Chemistry. |
| ID Code: | 84379 |
| Deposited On: | 25 Feb 2012 05:42 |
| Last Modified: | 25 Feb 2012 05:42 |
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