Projects per year
Abstract
Several outstanding aspects of phase behaviour in the systems (Bi,Ln)(2)WO6 and (Bi,Ln)(2)MoO6 (Ln = lanthanide) have been clarified. Detailed crystal structures, from Rietveld refinement of powder neutron diffraction data, are provided for Bi1.8La0.2WO6 (L-Bi2WO6 type) and BiLaWO6, BiNdWO6, Bi0.7Yb1.3WO6 and Bi0.7Yb1.3WO6 (all H-Bi2WO6 type). Phase evolution within the solid solution Bi2-xLaxMoO6 has been re-examined, and a crossover from gamma(H)-Bi2MoO6 type to gamma-R2MoO6 type is observed at x similar to 1.2. A preliminary X-ray Rietveld refinement of the line phase BiNdMoO6 has confirmed the alpha-R2MoO6 type structure, with a possible partial ordering of Bi/Nd over the three crystallographically distinct R sites. (c) 2006 Elsevier Inc. All rights reserved.
Original language | English |
---|---|
Pages (from-to) | 3437-3444 |
Number of pages | 8 |
Journal | Journal of Solid State Chemistry |
Volume | 179 |
DOIs | |
Publication status | Published - Nov 2006 |
Keywords
- bismuth oxides
- molybdates
- tungstates
- ferroelectric
- neutron diffraction
- BI2MOO6 CATALYST
- TEMPERATURE
- POLYMORPHS
Fingerprint
Dive into the research topics of 'Phase relations and crystal structures in the systems (Bi,Ln)2WO(6) and (Bi,Ln)(2)MoO6 (Ln = lanthanide)'. Together they form a unique fingerprint.Projects
- 1 Finished
-
epsrc ep/c008448/1: Novel Oxyfluoride Relaxor Ferroelectrics
Lightfoot, P. (PI)
1/07/05 → 30/09/08
Project: Standard