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dc.contributor.authorDavidson, A.L.
dc.contributor.authorWebb, Paul B.
dc.contributor.authorParker, S.F.
dc.contributor.authorLennon, D.
dc.date.accessioned2021-04-09T16:30:03Z
dc.date.available2021-04-09T16:30:03Z
dc.date.issued2021-03-17
dc.identifier.citationDavidson , A L , Webb , P B , Parker , S F & Lennon , D 2021 , ' An inelastic neutron scattering investigation of the temporal behaviour of the hydrocarbonaceous overlayer of a prototype Fischer-Tropsch to olefins catalyst ' , Topics in Catalysis , vol. First Online . https://doi.org/10.1007/s11244-021-01419-yen
dc.identifier.issn1022-5528
dc.identifier.otherPURE: 273735162
dc.identifier.otherPURE UUID: 26e119b0-716c-4b41-a266-e985b092731c
dc.identifier.otherRIS: urn:0588106CA7D69BE1DB8604492CD5877B
dc.identifier.otherScopus: 85102589128
dc.identifier.otherORCID: /0000-0003-2532-344X/work/92020235
dc.identifier.otherWOS: 000629851400001
dc.identifier.urihttp://hdl.handle.net/10023/23005
dc.descriptionSasol Ltd., the University of Glasgow and the EPSRC [award reference EP/P505534/1] are thanked for the provision of a postgraduate studentship (ALD). The Royal Society is thanked for the provision of an Industry Fellowship (PBW).en
dc.description.abstractA dual sodium and sulfur promoted haematite, representative of a candidate Fischer-Tropsch to olefins (FTO) catalyst, is prepared and contrasted with the performance of an unpromoted hematite sample in the ambient pressure CO hydrogenation reaction at 623 K as a function of time-on-stream (0–24 h). In-situ post-reaction temperature-programmed oxidation measurements show the carbon evolutionary phase of the catalyst conditioning process to be retarded for the FTO catalyst. Ex-situ inelastic neutron scattering measurements show the promoters perturb the formation of a previously described hydrocarbonaceous overlayer. Specifically, whilst the sp3 hybridised C–H modes of the hydrocarbonaceous overlayer are almost unaffected by the additives, the formation of the overlayer’s sp2 hybridised C–H modes are noticeably impeded. The results are discussed in terms of the Na/S promoters disturbing the formation of an ordered hydrocarbonaceous overlayer that is thought to constrain the supply of adsorbed hydrogen atoms, which favours the formation of unsaturated hydrocarbons associated with the FTO process.
dc.format.extent7
dc.language.isoeng
dc.relation.ispartofTopics in Catalysisen
dc.rightsCopyright © The Author(s) 2021. Open Access. This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.en
dc.subjectFischer-Tropsch to olefins catalysisen
dc.subjectInelastic neuron scatteringen
dc.subjectTemperature-programmed oxidationen
dc.subjectQD Chemistryen
dc.subjectNDASen
dc.subject.lccQDen
dc.titleAn inelastic neutron scattering investigation of the temporal behaviour of the hydrocarbonaceous overlayer of a prototype Fischer-Tropsch to olefins catalysten
dc.typeJournal articleen
dc.description.versionPublisher PDFen
dc.contributor.institutionUniversity of St Andrews.School of Chemistryen
dc.identifier.doihttps://doi.org/10.1007/s11244-021-01419-y
dc.description.statusPeer revieweden


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