The application of inelastic neutron scattering to investigate CO hydrogenation over an iron Fischer–Tropsch synthesis catalyst

Hamilton, N. G. et al. (2014) The application of inelastic neutron scattering to investigate CO hydrogenation over an iron Fischer–Tropsch synthesis catalyst. Journal of Catalysis, 312, pp. 221-231. (doi:10.1016/j.jcat.2014.02.004)

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Publisher's URL: http://dx.doi.org/10.1016/j.jcat.2014.02.004

Abstract

An iron Fischer–Tropsch (F–T) catalyst has been prepared and evaluated using CO hydrogenation at 623 and 723 K as a test reaction. Micro-reactor measurements establish reaction profiles. The reaction is then scaled up to enable inelastic neutron scattering (INS) measurements of the catalyst to be acquired. The INS spectra (200–4000 cm<sup>−1</sup>) are characterised by a combination of hydrocarbon moieties and hydroxyl groups. Whereas the low temperature sample is characterised by an aliphatic overlayer, the hydrocarbon features of the high temperature sample are attributed to partially hydrogenated polycyclic aromatic compounds. The catalyst is further characterised by a combination of temperature-programmed oxidation, powder X-ray diffraction, Raman scattering and transmission electron microscopy. This series of measurements is combined to propose a model for the composition of the catalyst as it progresses from the precursor state to steady-state operation. The work features some of the challenges associated with using INS to characterise heterogeneously catalysed reactions systems.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Lennon, Professor David and Kapitan, Dr Josef and Silverwood, Dr Ian and Hamilton, Mr Neil and Hecht, Dr Lutz and Warringham, Mr Robbie
Authors: Hamilton, N. G., Warringham, R., Silverwood, I. P., Kapitan, J., Hecht, L., Webb, P. B., Tooze, R. P., Zhou, W., Frost, C. D., Parker, S. F., and Lennon, D.
College/School:College of Science and Engineering > School of Chemistry
Journal Name:Journal of Catalysis
Publisher:Elsevier
ISSN:0021-9517
ISSN (Online):1090-2694
Copyright Holders:Copyright © 2014 Elsevier
First Published:First published in Journal of Catalysis 312(221-231)
Publisher Policy:Reproduced in accordance with the copyright policy of the publisher

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Project CodeAward NoProject NamePrincipal InvestigatorFunder's NameFunder RefLead Dept
442801Towards a molecular understanding of deactivation issues in methane reforming catalystsDavid LennonEngineering & Physical Sciences Research Council (EPSRC)EP/E028861/1CHEM - CHEMISTRY