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Synthesis and Investigation of Na1 –xR0.33xTiO2(PO4)3 (R = Y or La) Phosphates.
- Source :
- Russian Journal of Inorganic Chemistry; Mar2023, Vol. 68 Issue 3, p239-246, 8p
- Publication Year :
- 2023
-
Abstract
- Phosphates Na<subscript>1 –</subscript><subscript>x</subscript>R<subscript>0.33x</subscript>Ti<subscript>2</subscript>(PO<subscript>4</subscript>)<subscript>3</subscript> (R = Y or La; 0 ≤ х ≤ 1) were synthesized by the Pechini process and characterized by X-ray diffraction, electron microscopy with microprobe analysis, and IR spectroscopy. The systems exhibit isodimorphism to form a series of solid solutions belonging to the NaZr<subscript>2</subscript>(PO<subscript>4</subscript>)<subscript>3</subscript> (NZP) structural type and crystallizing in space group R c or R The Rietveld structural studies confirmed the isomorphic miscibility of sodium and the rare-earth element in the interstices of the NZP structure. The unit cell parameter с in the phosphates studied tends to increase, and the parameter а tends to decrease, in response to rising temperature, which trends are typical of NZP phosphates. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00360236
- Volume :
- 68
- Issue :
- 3
- Database :
- Complementary Index
- Journal :
- Russian Journal of Inorganic Chemistry
- Publication Type :
- Academic Journal
- Accession number :
- 174207830
- Full Text :
- https://doi.org/10.1134/S0036023622602434