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dc.date.accessioned2020-04-15T18:56:58Z
dc.date.available2020-04-15T18:56:58Z
dc.date.created2019-10-25T13:54:00Z
dc.date.issued2019
dc.identifier.citationDyballa, Michael Martin Thorshaug, Knut Pappas, Dimitrios Borfecchia, Elisa Kvande, Karoline Bordiga, Silvia Berlier, Gloria Lazzarini, Andrea Olsbye, Unni Beato, Pablo Svelle, Stian Arstad, Bjørnar . Zeolite surface methoxy groups as key intermediates in the stepwise conversion of methane to methanol. ChemCatChem. 2019, 11, 5022-5026
dc.identifier.urihttp://hdl.handle.net/10852/74546
dc.description.abstractThis contribution clarifies the overoxidation-preventing key step in the methane-to-methanol (MTM) conversion over copper mordenite zeolites. We followed the methane-to-methanol conversion over copper mordenite zeolites by NMR spectroscopy supported by DRIFTS to show that surface methoxy groups (SMGs) located at zeolite Brønsted sites are the key intermediates. The SMGs with chemical shift of 59 ppm are identical to those formed on a copper-free reference zeolite after reaction with methanol and react with water, methanol, or carbon monoxide to yield methanol, dimethyl ether, and acetate. This reactivity corroborates the location of SMGs at Brønsted sites. We find no evidence for stable SMGs directly at copper sites and explain mechanistically why H-form mordenites outperform their Na-form analogues. This finding is of interest for any future process that tries to trap the intermediate methane oxidation product towards methanol.
dc.description.abstractZeolite surface methoxy groups as key intermediates in the stepwise conversion of methane to methanol
dc.languageEN
dc.publisherWiley - VCH Verlag GmbH
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 International
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/4.0/
dc.titleZeolite surface methoxy groups as key intermediates in the stepwise conversion of methane to methanol
dc.typeJournal article
dc.creator.authorDyballa, Michael Martin
dc.creator.authorThorshaug, Knut
dc.creator.authorPappas, Dimitrios
dc.creator.authorBorfecchia, Elisa
dc.creator.authorKvande, Karoline
dc.creator.authorBordiga, Silvia
dc.creator.authorBerlier, Gloria
dc.creator.authorLazzarini, Andrea
dc.creator.authorOlsbye, Unni
dc.creator.authorBeato, Pablo
dc.creator.authorSvelle, Stian
dc.creator.authorArstad, Bjørnar
cristin.unitcode185,15,17,10
cristin.unitnameSenter for Materialvitenskap og Nanoteknologi kjemi
cristin.ispublishedtrue
cristin.fulltextoriginal
cristin.qualitycode1
dc.identifier.cristin1740643
dc.identifier.bibliographiccitationinfo:ofi/fmt:kev:mtx:ctx&ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=ChemCatChem&rft.volume=11&rft.spage=5022&rft.date=2019
dc.identifier.jtitleChemCatChem
dc.identifier.volume11
dc.identifier.issue20
dc.identifier.startpage5022
dc.identifier.endpage5026
dc.identifier.doihttps://doi.org/10.1002/cctc.201901315
dc.identifier.urnURN:NBN:no-77655
dc.type.documentTidsskriftartikkel
dc.type.peerreviewedPeer reviewed
dc.source.issn1867-3880
dc.identifier.fulltextFulltext https://www.duo.uio.no/bitstream/handle/10852/74546/1/Dyballa_et_al-2019-ChemCatChem.pdf
dc.type.versionPublishedVersion
dc.relation.projectNFR/237922


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