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dc.contributor.authorDyballa, Michael Martin
dc.contributor.authorPappas, Dimitrios
dc.contributor.authorBorfecchia, Elisa
dc.contributor.authorBeato, Pablo
dc.contributor.authorOlsbye, Unni
dc.contributor.authorLillerud, Karl Petter
dc.contributor.authorArstad, Bjørnar
dc.contributor.authorSvelle, Stian
dc.date.accessioned2020-12-17T13:00:28Z
dc.date.available2020-12-17T13:00:28Z
dc.date.created2018-07-10T14:43:49Z
dc.date.issued2018
dc.identifier.citationMicroporous and Mesoporous Materials. 2018, 265 112-122.en_US
dc.identifier.issn1387-1811
dc.identifier.urihttps://hdl.handle.net/11250/2720062
dc.description.abstractThis work describes the synthesis and investigation of improved SUZ-4 catalysts (SZR framework) and their application in methanol-to-olefins and methane-to-methanol conversion. We report boron containing, dealuminated and desilicated SUZ-4 catalysts. Ammonia and pyridine probe molecules enabled the assignment of acid site densities to the 10-MR and 8-MR pores, respectively. The difference in between the theoretically expected and the for the probes accessible acid site density is a good descriptor for the accessibility of pores and acid sites. The access to the 8-MR SUZ-4 pores is sterically hindered by counter ions as well as extra framework aluminum (EFAl) species that account for up to 15% of the aluminum. Dealumination and desilication were successfully applied to optimize the diffusion properties and resulted in outstandingly high BET surface area, nSi/nAl-ratios and potassium exchange degrees. The improved accessibility led to an up to 2-fold increased MTO conversion capacity of the catalysts. Cu-exchanged SUZ-4 was applied in the selective oxidation of methane to methanol. By operando X-ray absorption spectroscopy (XAS) we showed that CuII ions are mainly coordinated in 2Al sites of 6-MR motifs and inhibited for redox-reactions.en_US
dc.language.isoengen_US
dc.publisherElsevieren_US
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 Internasjonal*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/deed.no*
dc.subjectProbe moleculesen_US
dc.subjectDesilicationen_US
dc.subjectMethane-to-methanol conversionen_US
dc.subjectMethanol-to-olefin conversion (MTO)en_US
dc.subjectSUZ-4 improveen_US
dc.titleTuning the material and catalytic properties of SUZ-4 zeolites for the conversion of methanol or methaneen_US
dc.typePeer revieweden_US
dc.typeJournal articleen_US
dc.description.versionacceptedVersionen_US
dc.rights.holderThis is the accepted manuscript of the article available at ScienceDirect: https://www.sciencedirect.com/science/article/pii/S1387181118300635?via%3Dihuben_US
dc.source.pagenumber112-122en_US
dc.source.volume265en_US
dc.source.journalMicroporous and Mesoporous Materialsen_US
dc.identifier.doi10.1016/j.micromeso.2018.02.004
dc.identifier.cristin1596578
dc.relation.projectNorges forskningsråd: 237922en_US
cristin.unitcode7401,80,0,0
cristin.unitcode7401,80,40,0
cristin.unitnameSINTEF Industri
cristin.unitnameProsessteknologi
cristin.ispublishedtrue
cristin.fulltextpostprint
cristin.qualitycode2


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Attribution-NonCommercial-NoDerivatives 4.0 Internasjonal
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