Controlling the Coke Formation in Dehydrogenation of Propane by Adding Nickel to Supported Gallium Oxide

dc.contributor.authorBaumgarten, Robert
dc.contributor.authorIngale, Piyush
dc.contributor.authorEbert, Fabian
dc.contributor.authorMazheika, Aliaksei
dc.contributor.authorGioria, Esteban
dc.contributor.authorTrapp, Katharina
dc.contributor.authorProfita, Kevin D.
dc.contributor.authorNaumann d'Alnoncourt, Raoul
dc.contributor.authorDriess, Matthias
dc.contributor.authorRosowski, Frank
dc.date.accessioned2024-02-22T10:12:40Z
dc.date.available2024-02-22T10:12:40Z
dc.date.issued2023-12-18
dc.description.abstractAtomic layer deposition was applied on mesoporous silica to synthesize a highly dispersed gallium oxide catalyst. This system was used as starting material to investigate different loadings of nickel in the dehydrogenation of propane under industrially relevant, Oleflex-like conditions. The formation of NiGa alloys was confirmed by X-ray diffraction analysis and electron microscopy. Surprisingly, the nanoalloys enhanced the selectivity towards C3H6 while decreasing the tendency for coking. Herein, in situ thermogravimetry, and measured mass fractions of carbon revealed that the coking rate was reduced by over 50 % compared to the pristine gallium oxide. Generally, the increased selectivity can be explained by the partial hydrogenation and reduction of the gallium oxide surface. The optimum temperature for the removal of deposited carbon was evaluated by a temperature programmed oxidation. Finally, the best-performing Ni−GaOx catalyst was employed in a cycled experiment with periodic reaction and regeneration tests. After regeneration, the selected Ni−GaOx catalyst provided a higher yield of propylene compared to the unmodified gallium oxide.en
dc.description.sponsorshipTU Berlin, Open-Access-Mittel – 2023
dc.description.sponsorshipDFG, 390540038, EXC 2008: Unifying Systems in Catalysis "UniSysCat"
dc.identifier.eissn1867-3899
dc.identifier.issn1867-3880
dc.identifier.urihttps://depositonce.tu-berlin.de/handle/11303/21135
dc.identifier.urihttps://doi.org/10.14279/depositonce-19935
dc.language.isoen
dc.publisherWiley
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.subject.ddc500 Naturwissenschaften und Mathematik::540 Chemie::540 Chemie und zugeordnete Wissenschaften
dc.subject.otheralloyen
dc.subject.othercoke formationen
dc.subject.othergallium oxideen
dc.subject.othernickelen
dc.subject.otherpropane dehydrogenationen
dc.titleControlling the Coke Formation in Dehydrogenation of Propane by Adding Nickel to Supported Gallium Oxide
dc.typeArticle
dc.type.versionpublishedVersion
dcterms.bibliographicCitation.articlenumbere202301261
dcterms.bibliographicCitation.doi10.1002/cctc.202301261
dcterms.bibliographicCitation.journaltitleChemCatChem
dcterms.bibliographicCitation.originalpublishernameWiley
dcterms.bibliographicCitation.originalpublisherplaceNew York, NY
dcterms.rightsHolder.referenceCreative-Commons-Lizenz
tub.accessrights.dnbfree
tub.affiliationVerbundforschung::Exzellenzcluster (EXC)::BasCat Joint Lab
tub.publisher.universityorinstitutionTechnische Universität Berlin

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