Synthesis, structure and characterisation of Fe0.50Ti2(PO4)3: A new material with Nasicon-like structure
Language
en
Article de revue
This item was published in
Journal of Solid State Chemistry. 2007, vol. 180, n° 7, p. 2004-2012
Elsevier
English Abstract
A new iron titanyl phosphate Fe0.50Ti2(PO4)3 was synthesized by both solid-state reaction and Cu2+–Fe2+ ion exchange method. The material was then characterized by X-ray diffraction, Mössbauer, magnetic susceptibility ...Read more >
A new iron titanyl phosphate Fe0.50Ti2(PO4)3 was synthesized by both solid-state reaction and Cu2+–Fe2+ ion exchange method. The material was then characterized by X-ray diffraction, Mössbauer, magnetic susceptibility measurements and optical absorption. The crystal structure of the compound was refined, using X-ray powder diffraction data, by the Rietveld profile method; it crystallizes in the rhombohedral system, space group Click to view the MathML source, with a=8.511(1) Å and c=20.985(3) Å, V=1316.45(3) Å3 and Z=6. The structure, which is compared to that of Mn0.50Ti2(PO4)3 is built up from [TiO6] octahedra and [PO4] tetrahedra which are linked by corner sharing along the c-axis. Fe2+ cations are located in half of the antiprism MI sites and are orderly distributed with vacancies within the two possible positions of the MI sites of ...Read less <
English Keywords
Synthesis
Phosphate
Nasicon
X-ray diffraction
Mössbauer spectroscopy
Magnetic measurements
UV–visible
Origin
Hal imported