Structural properties of ferric pseudobrookite Fe₂Ti₁O₅ powder prepared by a new method
by N.I. Aljuraide, M.A.A. Mousa, M. Hessien, Mohsen Qhatani, Ameen Ashour, H.L. Wamocha, H.H. Hamdeh, M.A. Ahmed
International Journal of Nanoparticles (IJNP), Vol. 4, No. 1, 2011

Abstract: Ferric pseudobrookite Fe₂TiO₅ was successfully synthesised by the oxalate precursor method and subsequent calcination at temperatures ranging from 900°C to 1,300°C. The materials were characterised by scanning electron microscope (SEM), X-ray diffraction (XRD), and ⁵⁷Fe Mossbauer spectroscopy (MS). Powders calcined at all temperatures comprised of Fe₂TiO₅, α-Fe₂O₃ and TiO₂ phases. Upon calcination at the elevated temperatures the powders underwent significant changes in grain size, the Fe₂TiO₅ phase increased to dominance, and Fe³⁺ and Ti⁴⁺ randomly occupied the two metal sites available in the Fe₂TiO₅ structure. However, α-Fe₂O₃ particulates were isolated inside hardened Fe₂TiO₅ grains. As a result, total solid state reaction was constrained and synthesis of pure Fe₂TiO₅ was incomplete.

Online publication date: Fri, 13-Mar-2015

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