BENMOKHTAR, Saïd; EL JAZOULI, Abdelaziz; AATIQ, A.; CHAMINADE, Jean-Pierre; GRAVEREAU, Pierre; WATTIAUX, Alain; FOURNÈS, Léopold; GRENIER, Jean-Claude

doi:10.1016/j.jssc.2007.04.014

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BENMOKHTAR, Saïd
Laboratoire de Chimie des Matériaux Solides

EL JAZOULI, Abdelaziz
Laboratoire de Chimie des Matériaux Solides

AATIQ, A.
Laboratoire de Chimie des Matériaux Solides

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Journal of Solid State Chemistry. 2007, vol. 180, n° 7, p. 2004-2012

Elsevier

Résumé en anglais

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 ...< Réduire

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Synthesis

Phosphate

Nasicon

X-ray diffraction

Mössbauer spectroscopy

Magnetic measurements

UV–visible

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Synthesis, structure and characterisation of Fe0.50Ti2(PO4)3: A new material with Nasicon-like structure

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