Please use this identifier to cite or link to this item: https://doi.org/10.15480/882.3830
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dc.contributor.authorWolf, Moritz-
dc.contributor.authorRaman, Narayanan-
dc.contributor.authorTaccardi, Nicola-
dc.contributor.authorHorn, Raimund-
dc.contributor.authorHaumann, Marco-
dc.contributor.authorWasserscheid, Peter-
dc.date.accessioned2021-10-14T10:57:26Z-
dc.date.available2021-10-14T10:57:26Z-
dc.date.issued2021-02-
dc.identifier.citationFaraday Discussions 229: 359-377 (2021-02)de_DE
dc.identifier.issn1364-5498de_DE
dc.identifier.urihttp://hdl.handle.net/11420/10532-
dc.description.abstractSupported liquid phase catalysis has great potential to unify the advantages from both homogeneous and heterogeneous catalysis. Recently, we reported supported catalytically active liquid metal solutions (SCALMS) as a new class of liquid phase catalysts. SCALMS enable high temperature application due to the high thermal stability of liquid metals when compared to supported molten salts or ionic liquids. The highly dynamic liquid metal/gas interface of SCALMS allows for catalysis over single atoms of an active metal atom within a matrix of liquid gallium. In the present study, kinetic data is acquired along the catalyst bed in a compact profile reactor during propane dehydrogenation (PDH) over gallium-platinum SCALMS. The reactor design allows for the analysis of the temperature and gas phase composition along the catalyst bed with a high spatial resolution using a sampling capillary inside the reactor. The concentration profiles suggest enhanced deactivation of the catalyst at the end of the bed with a deactivation front moving from the end to the beginning of the catalyst bed over time on stream. Only minor amounts of side products, formed via cracking of propane, were identified, supporting previously reported high selectivity of SCALMS during alkane dehydrogenation. The acquired data is supported by in situ high-resolution thermogravimetry coupled with mass spectrometry to monitor the activity and coking behaviour of SCALMS during PDH. The results strongly suggest an enhanced formation of coke over Al2O3-supported SCALMS when compared to using SiO2 as the support material. This journal isen
dc.language.isoende_DE
dc.publisherSoc.de_DE
dc.relation.ispartofFaraday discussionsde_DE
dc.rights.urihttps://creativecommons.org/licenses/by-nc/3.0/de_DE
dc.subject.ddc620: Ingenieurwissenschaftende_DE
dc.titleCapturing spatially resolved kinetic data and coking of Ga-Pt supported catalytically active liquid metal solutions during propane dehydrogenation: In situde_DE
dc.typeArticlede_DE
dc.identifier.doi10.15480/882.3830-
dc.type.diniarticle-
dcterms.DCMITypeText-
tuhh.identifier.urnurn:nbn:de:gbv:830-882.0147553-
tuhh.oai.showtruede_DE
tuhh.abstract.englishSupported liquid phase catalysis has great potential to unify the advantages from both homogeneous and heterogeneous catalysis. Recently, we reported supported catalytically active liquid metal solutions (SCALMS) as a new class of liquid phase catalysts. SCALMS enable high temperature application due to the high thermal stability of liquid metals when compared to supported molten salts or ionic liquids. The highly dynamic liquid metal/gas interface of SCALMS allows for catalysis over single atoms of an active metal atom within a matrix of liquid gallium. In the present study, kinetic data is acquired along the catalyst bed in a compact profile reactor during propane dehydrogenation (PDH) over gallium-platinum SCALMS. The reactor design allows for the analysis of the temperature and gas phase composition along the catalyst bed with a high spatial resolution using a sampling capillary inside the reactor. The concentration profiles suggest enhanced deactivation of the catalyst at the end of the bed with a deactivation front moving from the end to the beginning of the catalyst bed over time on stream. Only minor amounts of side products, formed via cracking of propane, were identified, supporting previously reported high selectivity of SCALMS during alkane dehydrogenation. The acquired data is supported by in situ high-resolution thermogravimetry coupled with mass spectrometry to monitor the activity and coking behaviour of SCALMS during PDH. The results strongly suggest an enhanced formation of coke over Al2O3-supported SCALMS when compared to using SiO2 as the support material. This journal isde_DE
tuhh.publisher.doi10.1039/d0fd00010h-
tuhh.publication.instituteChemische Reaktionstechnik V-2de_DE
tuhh.identifier.doi10.15480/882.3830-
tuhh.type.opus(wissenschaftlicher) Artikel-
dc.type.driverarticle-
dc.type.casraiJournal Article-
tuhh.container.volume229de_DE
tuhh.container.startpage359de_DE
tuhh.container.endpage377de_DE
dc.identifier.pmid33666203de_DE
dc.rights.nationallicensefalsede_DE
dc.identifier.scopus2-s2.0-85087423446de_DE
local.status.inpressfalsede_DE
local.type.versionpublishedVersionde_DE
local.funding.infoFinancial support by the European Research Council is gratefully acknowledged (Project 786475: Engineering of Supported Catalytically Active Liquid Metal Solutions).de_DE
item.openairecristypehttp://purl.org/coar/resource_type/c_6501-
item.creatorOrcidWolf, Moritz-
item.creatorOrcidRaman, Narayanan-
item.creatorOrcidTaccardi, Nicola-
item.creatorOrcidHorn, Raimund-
item.creatorOrcidHaumann, Marco-
item.creatorOrcidWasserscheid, Peter-
item.cerifentitytypePublications-
item.mappedtypeArticle-
item.openairetypeArticle-
item.fulltextWith Fulltext-
item.grantfulltextopen-
item.creatorGNDWolf, Moritz-
item.creatorGNDRaman, Narayanan-
item.creatorGNDTaccardi, Nicola-
item.creatorGNDHorn, Raimund-
item.creatorGNDHaumann, Marco-
item.creatorGNDWasserscheid, Peter-
item.languageiso639-1en-
crisitem.author.deptChemische Reaktionstechnik V-2-
crisitem.author.orcid0000-0002-1326-5337-
crisitem.author.orcid0000-0002-9646-8163-
crisitem.author.orcid0000-0002-3896-365X-
crisitem.author.orcid0000-0003-0413-9539-
crisitem.author.parentorgStudiendekanat Verfahrenstechnik-
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