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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

Journal Article · · Journal of Solid State Chemistry
 [1];  [2];  [2];  [1];  [3]
  1. Chemical Department, Nizhny Novgorod State University, Nizhny Novgorod 603950 (Russian Federation)
  2. Geological Department, Moscow State University, Moscow 119992 (Russian Federation)
  3. Waste Immobilization Laboratory, Chemical and Technological Department, Research Institute of Atomic Reactors, Dimitrovgrad - 10, Ulyanovsk region 433510 (Russian Federation)
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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, Journal Name: Journal of Solid State Chemistry Journal Issue: 10 Vol. 179; ISSN 0022-4596; ISSN JSSCBI
Country of Publication:
United States
Language:
English

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Related Subjects

36 MATERIALS SCIENCE
CERIUM PHOSPHATES
CRYSTAL STRUCTURE
DIFFRACTION
EUROPIUM PHOSPHATES
SPACE GROUPS
YTTERBIUM PHOSPHATES
ZIRCONIUM PHOSPHATES