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dc.date.accessioned2021-03-19T21:16:56Z
dc.date.available2021-03-19T21:16:56Z
dc.date.created2021-02-09T17:20:50Z
dc.date.issued2020
dc.identifier.citationKømurcu, Mustafa Lazzarini, Andrea Kaur, Gurpreet Borfecchia, Elisa Øien-Ødegaard, Sigurd Gianolio, Diego Bordiga, Silvia Lillerud, Karl Petter Olsbye, Unni . Co-catalyst free ethene dimerization over Zr-based metal-organic framework (UiO-67) functionalized with Ni and bipyridine. Catalysis Today. 2020
dc.identifier.urihttp://hdl.handle.net/10852/84175
dc.description.abstractNi functionalized metal organic frameworks (MOF) are promising heterogeneous ethene dimerization catalysts. Activities comparable to or higher than Ni-aluminosilicates have been reported in literature. However, unlike the Ni-aluminosilicates, those Ni-MOFs require a large excess of co-catalyst to initiate the dimerization process and some catalysts generate polymers which lead to catalyst deactivation. Herein, we report a series of Ni(II) and 2,2′-bipyridine-5,5′-dicarboxylate (bpy) functionalized UiO-67 MOF that catalyze the ethene dimerization reaction co-catalyst free. The catalysts were active for ethene dimerization (up to 850 mg butene gcat−1 h−1) after activation at 300 °C in 10 % O2 for 360 min and subsequent exposure to flowing ethene (P(ethene) =26 bar, 250 °C) for 240 min. The catalysts yielded up to 6 % conversion with 99 % selectivity to linear 1- and 2-butenes, which formed in non-equilibrated ratios. Overall, the test data indicate that all three linear butenes are formed on a single active site, in accordance with the Cossee-Arlman mechanism. Ex situ XAS and CO FT-IR spectroscopy studies point towards Ni monomers or, plausibly, low-nuclearity Ni-multimers, docked at bpy linkers with Ni-Ni distances > 4 Å, as the main active site for the ethene dimerization reaction.
dc.languageEN
dc.rightsAttribution 4.0 International
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.titleCo-catalyst free ethene dimerization over Zr-based metal-organic framework (UiO-67) functionalized with Ni and bipyridine
dc.typeJournal article
dc.creator.authorKømurcu, Mustafa
dc.creator.authorLazzarini, Andrea
dc.creator.authorKaur, Gurpreet
dc.creator.authorBorfecchia, Elisa
dc.creator.authorØien-Ødegaard, Sigurd
dc.creator.authorGianolio, Diego
dc.creator.authorBordiga, Silvia
dc.creator.authorLillerud, Karl Petter
dc.creator.authorOlsbye, Unni
cristin.unitcode185,15,17,10
cristin.unitnameSenter for Materialvitenskap og Nanoteknologi kjemi
cristin.ispublishedtrue
cristin.fulltextoriginal
cristin.qualitycode2
dc.identifier.cristin1888227
dc.identifier.bibliographiccitationinfo:ofi/fmt:kev:mtx:ctx&ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Catalysis Today&rft.volume=&rft.spage=&rft.date=2020
dc.identifier.jtitleCatalysis Today
dc.identifier.pagecount0
dc.identifier.doihttps://doi.org/10.1016/j.cattod.2020.03.038
dc.identifier.urnURN:NBN:no-87014
dc.type.documentTidsskriftartikkel
dc.type.peerreviewedPeer reviewed
dc.source.issn0920-5861
dc.identifier.fulltextFulltext https://www.duo.uio.no/bitstream/handle/10852/84175/1/1-s2.0-S0920586120301553-main.pdf
dc.type.versionPublishedVersion
dc.relation.projectNFR/250795


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