Ni-based bimetallic catalysts for hydrogen production via (sorption-enhanced) steam methane reforming

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dc.contributor.authorWang, Siqi
dc.contributor.authorShen, Ziqi
dc.contributor.authorOsatiashtiani, Amin
dc.contributor.authorNabavi, Seyed Ali
dc.contributor.authorClough, Peter T.
dc.date.accessioned2024-03-21T11:40:18Z
dc.date.available2024-03-21T11:40:18Z
dc.date.issued2024-03-03
dc.description.abstractThe catalytic performance of a monometallic Ni/Al2O3 and three bimetallic catalysts (Ni3M1/Al2O3, with M = Cu, Fe, and Ge) for the (sorption-enhanced) steam methane reforming reaction was evaluated. Ni3Cu1/Al2O3 was found to be the optimal catalyst in terms of methane conversion, hydrogen yield, and purity. Ge also has a promoting effect on the monometallic Ni catalyst, whereas the addition of Fe negatively influenced its performance. Physico-chemical characterization of the materials indicated the formation of alloys upon activation of the materials with hydrogen. The addition of Cu increased the surface area and metal dispersion, and improved the overall morphology of the catalyst. The experimental observations were also supported by a numerical study combining Density Functional Theory-based calculations and Microkinetic modelling of the SMR process. Ni3Cu1 and Ni3Ge1 were calculated to have a similar level of catalytic activity as Ni, whereas Ni3Fe1 was unsuitable for the reaction. The SMR reaction was further improved by adding calcium oxide as the CO2 sorbent, which increased methane conversion, CO selectivity, hydrogen yield, and hydrogen purity. The highest methane conversion of 97 % was achieved by Ni/Al2O3 and Ni3Cu1/Al2O3 at 700 °C.en_UK
dc.identifier.citationWang S, Shen Z, Osatiashtiani A, et al., (2024) Ni-based bimetallic catalysts for hydrogen production via (sorption-enhanced) steam methane reforming. Chemical Engineering Journal, Volume 486, April 2024, Article number 150170en_UK
dc.identifier.eissn1873-3212
dc.identifier.issn1385-8947
dc.identifier.urihttps://doi.org/10.1016/j.cej.2024.150170
dc.identifier.urihttps://dspace.lib.cranfield.ac.uk/handle/1826/21054
dc.language.isoen_UKen_UK
dc.publisherElsevieren_UK
dc.rightsAttribution 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.subjectBimetallic catalysten_UK
dc.subjectHydrogen productionen_UK
dc.subjectSteam methane reformingen_UK
dc.subjectSorption-enhanced steam methane reformingen_UK
dc.subjectMicrokinetic modellingen_UK
dc.titleNi-based bimetallic catalysts for hydrogen production via (sorption-enhanced) steam methane reformingen_UK
dc.typeArticleen_UK
dcterms.dateAccepted2024-03-03

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