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Synthesis and crystal structure of Na3.5Cr1.5Co0.5(PO4)3 phosphate
Language
en
Article de revue
This item was published in
Powder Diffraction. 2006, vol. vol. 21, n° 3, p. p. 210-213
Cambridge University Press (CUP)
English Abstract
A new Nasicon phosphates series [Na3+xCr2–xCox(PO4)3(0<=x<=1)] was synthesized by a coprecipitation method and structurally characterized by powder X-ray diffraction. The selected compound Na3.5Cr1.5Co0.5(PO4)3 (x=0.5) ...Read more >
A new Nasicon phosphates series [Na3+xCr2–xCox(PO4)3(0<=x<=1)] was synthesized by a coprecipitation method and structurally characterized by powder X-ray diffraction. The selected compound Na3.5Cr1.5Co0.5(PO4)3 (x=0.5) crystallizes in the R[overline 3]c space group with the following hexagonal unit-cell dimensions: ah=8.7285(3) Å, ch=21.580(2) Å, V=1423.8(1) Å3, and Z=6. This three-dimensional framework is built of PO4 tetrahedra and Cr/CoO6 octahedra sharing corners. Na atoms occupy totally M(1) sites and partially M(2) sites.Read less <
English Keywords
Nasicon
Crystal structure
Powder diffraction
X-ray diffraction
Origin
Hal imported