A study of the iron/sodalite catalyst for the partial oxidation of methane to methanol

Betteridge, S. et al. (1995) A study of the iron/sodalite catalyst for the partial oxidation of methane to methanol. In: Bhasin, M.M. and Slocum, D.W. (eds.) Methane and Alkane Conversion Chemistry. Springer: Boston, MA, pp. 187-193. ISBN 9781461518075 (doi: 10.1007/978-1-4615-1807-5_21)

Abstract

The synthesis, characterisation and reactivity of an iron/sodalite catalyst for the partial oxidation of methane to methanol are described and discussed. In a limited temperature range, ca. 410°C, and at 34 bar total pressure, the selectivity to methanol is found to be similar to that observed for the empty silica glass reactor. Before reaction, powder X-ray diffraction and 57Fe Mössbauer spectroscopy confirm the presence of Fe(III) in the sodalite framework. After reaction the structure is more complex, as revealed by 57Fe Mössbauer spectroscopy and transmission electron microscopy, and both Fe(II) and Fe(III) are present. In particular, small particles of Fe2O3, < 1μm in size are also present in the used catalyst. The nature of the active site is discussed in terms of an Fe(II)/Fe(III) couple involving both framework and nonframework iron.

• Item Type: Book Sections
• Additional Information: Print ISBN: 9781461357308.
• Status: Published
• Glasgow Author(s) Enlighten ID: Hargreaves, Professor Justin
• Authors: Betteridge, S., Catlow, C. R. A., Grimes, R. W., Hargreaves, J. S.J., Hutchings, G. J., Joyner, R. W., Kiely, C. J., Lee, D. F., Pankhurst, Q. A., Taylor, S. H., and Whittle, D.
• College/School: College of Science and Engineering > School of Chemistry
• Publisher: Springer
• ISBN: 9781461518075