Synthesis, crystal structure and spectroscopy properties of Na{sub 3} AZr(PO{sub 4}){sub 3} (A=Mg, Ni) and Li{sub 2.6}Na{sub 0.4}NiZr(PO{sub 4}){sub 3} phosphates

Journal Article · Thu Jun 15 04:00:00 EDT 2006 · Journal of Solid State Chemistry

DOI:https://doi.org/10.1016/j.jssc.2006.03.003· OSTI ID:20905326

Chakir, M ^[1]; El Jazouli, A ^[1]; Waal, D de ^[2]

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1. LCMS, UFR Sciences des Materiaux Solides, Faculte des Sciences Ben M'Sik, UH2M, Avenue Idriss El Harti, BP 7955, Casablanca (Morocco)
2. Department of Chemistry, University of Pretoria, 0002 Pretoria (South Africa)

Na{sub 3} AZr(PO{sub 4}){sub 3} (A=Mg, Ni) phosphates were prepared at 750 deg. C by coprecipitation route. Their crystal structures have been refined at room temperature from X-ray powder diffraction data using Rietveld method. Li{sub 2.6}Na{sub 0.4}NiZr(PO{sub 4}){sub 3} was synthesized through ion exchange from the sodium analog. These materials belong to the Nasicon-type structure. Raman spectra of Na{sub 3} AZr(PO{sub 4}){sub 3} (A=Mg, Ni) phosphates present broad peaks in favor of the statistical distribution in the sites around PO{sub 4} tetrahedra. Diffuse reflectance spectra indicate the presence of octahedrally coordinated Ni{sup 2+} ions. - Graphical abstract: Structure of Na{sub 3} AZr(PO{sub 4}){sub 3} (A=Mg, Ni) phosphates. Display Omitted.

• OSTI ID: 20905326
• Journal Information: Journal of Solid State Chemistry, Journal Name: Journal of Solid State Chemistry Journal Issue: 6 Vol. 179; ISSN 0022-4596; ISSN JSSCBI
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
COPRECIPITATION
CRYSTAL STRUCTURE
ION EXCHANGE
LITHIUM PHOSPHATES
MAGNESIUM PHOSPHATES
NICKEL IONS
NICKEL PHOSPHATES
RAMAN SPECTRA
SODIUM PHOSPHATES
SPECTROSCOPY
SYNTHESIS
TEMPERATURE RANGE 1000-4000 K
X-RAY DIFFRACTION
ZIRCONIUM PHOSPHATES