Titanium-doped γ-Fe₂O₃: Reduction and oxidation properties

Ayub, I.; Berry, Frank; Crabb, E. and Helgason, O. (2004). Titanium-doped γ-Fe₂O₃: Reduction and oxidation properties. Journal of Materials Science, 39(23) pp. 6921–6927.

DOI: https://doi.org/10.1023/B:JMSC.0000047533.94176.4a

Abstract

Titanium-doped γ-Fe₂O₃ has been prepared by the calcination of a solid formed by the addition of aqueous ammonia to an aqueous solution of titanium- and iron-containing salts and boiling the precipitate under reflux. As compared to pure γ-Fe₂O₃ made by similar methods, titanium-doped gamma-Fe2O3 showed a higher surface area and a greater stability to reduction, thermal conversion to an α-Fe₂O₃-related structure and the maintenance of a higher surface area during oxidation-reduction cycling.

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