Journal
CHEMICAL PHYSICS
Volume 427, Issue -, Pages 54-60Publisher
ELSEVIER
DOI: 10.1016/j.chemphys.2013.10.012
Keywords
Inelastic neutron scattering; Steam reforming of methane; Alumina-supported nickel catalysts
Funding
- EPSRC [EP/E028861/1]
- EPSRC [EP/E029388/1, EP/E028861/1, EP/E030580/1] Funding Source: UKRI
- Engineering and Physical Sciences Research Council [EP/E028861/1, EP/E029388/1, EP/E030580/1] Funding Source: researchfish
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An alumina-supported nickel catalyst, previously used in methane reforming experiments employing CO2 as the oxidant, is applied here in the steam reforming variant of the process. Micro-reactor experiments are used to discern an operational window compatible with sample cells designed for inelastic neutron scattering (INS) experiments. INS spectra are recorded after 6 h reaction of a 1: 1 mixture of CH4 and H2O at 898 K. Weak INS spectra are observed, indicating minimal hydrogen retention by the catalyst in this operational regime. Post-reaction, the catalyst is further characterised by powder X-ray diffraction, transmission electron microscopy and Raman scattering. In a comparable fashion to that seen for the 'dry' reforming experiments, the catalyst retains substantial quantities of carbon in the form of filamentous coke. The role for hydrogen incorporation by the catalyst is briefly considered. (C) 2013 Elsevier B. V. All rights reserved.
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