Journal of Materials Science

, Volume 39, Issue 23, pp 6921–6927

Titanium-doped γ-Fe2O3: Reduction and oxidation properties

  • I. Ayub
  • F. J. Berry
  • E. Crabb
  • Ö. Helgason
Article

DOI: 10.1023/B:JMSC.0000047533.94176.4a

Cite this article as:
Ayub, I., Berry, F.J., Crabb, E. et al. Journal of Materials Science (2004) 39: 6921. doi: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 γ-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.

Copyright information

© Kluwer Academic Publishers 2004

Authors and Affiliations

  • I. Ayub
    • 1
  • F. J. Berry
    • 1
  • E. Crabb
    • 1
  • Ö. Helgason
    • 2
  1. 1.Department of ChemistryThe Open University, Walton HallMilton KeynesU.K
  2. 2.Science InstituteUniversity of IcelandReykjavikIceland