Persistent species formed during the carbon dioxide reforming of methane over a nickel-alumina catalyst

Silverwood, I.P., Hamilton, N.G., Staniforth, J.Z., Laycock, C.J., Parker, S.F., Ormerod, M.R. and Lennon, D. (2010) Persistent species formed during the carbon dioxide reforming of methane over a nickel-alumina catalyst. Catalysis Today, 155(3-4), pp. 319-325. (doi:10.1016/j.cattod.2010.07.009)

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Abstract

The CO<sub>2</sub> reforming of methaneover an alumina-supported nickelcatalyst has been studied using a conventional micro-reactor set-up. These experiments have been used to guide inelastic neutron scattering (INS) measurements, which were performed post-reaction using a ‘quench’ technique. The reacted catalyst has also been examined using infrared spectroscopy and transmission electron microscopy. This unified approach reveals the presence of a hydrogen-lean coke to have formed during the reforming process, which is predominantly comprised of amorphous carbon, the domains of which appear to be terminated with a small number of hydrocarbon groupings. A semi-quantitative analysis of the INS spectra establishes the catalyst to be very effective in cycling hydrogen during the reforming process.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Lennon, Professor David and Silverwood, Dr Ian
Authors: Silverwood, I.P., Hamilton, N.G., Staniforth, J.Z., Laycock, C.J., Parker, S.F., Ormerod, M.R., and Lennon, D.
College/School:College of Science and Engineering > School of Chemistry
Journal Name:Catalysis Today
Publisher:Elsevier
ISSN:0920-5861
ISSN (Online):1873-4308
Published Online:21 August 2010

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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