Crystal structures of lanthanide and zirconium phosphates with general formula Ln {sub 0.33}Zr{sub 2}(PO{sub 4}){sub 3}, where Ln=Ce, Eu, Yb
- Chemical Department, Nizhny Novgorod State University, Nizhny Novgorod 603950 (Russian Federation)
- Geological Department, Moscow State University, Moscow 119992 (Russian Federation)
- Waste Immobilization Laboratory, Chemical and Technological Department, Research Institute of Atomic Reactors, Dimitrovgrad - 10, Ulyanovsk region 433510 (Russian Federation)
Crystal structures of synthetic phosphates Ce{sub 0.33}Zr{sub 2}(PO{sub 4}){sub 3}, Eu{sub 0.33}Zr{sub 2}(PO{sub 4}){sub 3} and Yb{sub 0.33}Zr{sub 2}(PO{sub 4}){sub 3} have been refined by Rietveld method using powder diffraction data. Unit cell parameters: a=8.7419 (4), c=23.128 (2) A; a=8.7659 (1), c=22.822 (1) A; a=8.8078 (4), c=22.485 (3) A, respectively; Z=6. Values of final R-factors in isotropic approximation: R {sub wp}=4.00, R {sub wp}=3.33, R {sub wp}=4.12%, respectively. New space group P3-barc has been established for the compounds with general formula Ln {sub 0.33}Zr{sub 2}(PO{sub 4}){sub 3}, where Ln=Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu and Y. It has been confirmed that the synthetic phosphates with general formula Ln {sub 0.33}Zr{sub 2}(PO{sub 4}){sub 3} belong to the NZP (sodium zirconium phosphate) structure type. - Graphical abstract: Fragment of structure of synthetic phosphate Eu{sub 0.33}Zr{sub 2}(PO{sub 4}){sub 3}.
- OSTI ID:
- 20902467
- Journal Information:
- Journal of Solid State Chemistry, Vol. 179, Issue 10; Other Information: DOI: 10.1016/j.jssc.2006.06.002; PII: S0022-4596(06)00334-3; Copyright (c) 2006 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved; Country of input: International Atomic Energy Agency (IAEA); ISSN 0022-4596
- Country of Publication:
- United States
- Language:
- English
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