dc.date.accessioned | 2021-03-19T21:16:56Z | |
dc.date.available | 2021-03-19T21:16:56Z | |
dc.date.created | 2021-02-09T17:20:50Z | |
dc.date.issued | 2020 | |
dc.identifier.citation | Kømurcu, 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.uri | http://hdl.handle.net/10852/84175 | |
dc.description.abstract | Ni 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.language | EN | |
dc.rights | Attribution 4.0 International | |
dc.rights.uri | https://creativecommons.org/licenses/by/4.0/ | |
dc.title | Co-catalyst free ethene dimerization over Zr-based metal-organic framework (UiO-67) functionalized with Ni and bipyridine | |
dc.type | Journal article | |
dc.creator.author | Kømurcu, Mustafa | |
dc.creator.author | Lazzarini, Andrea | |
dc.creator.author | Kaur, Gurpreet | |
dc.creator.author | Borfecchia, Elisa | |
dc.creator.author | Øien-Ødegaard, Sigurd | |
dc.creator.author | Gianolio, Diego | |
dc.creator.author | Bordiga, Silvia | |
dc.creator.author | Lillerud, Karl Petter | |
dc.creator.author | Olsbye, Unni | |
cristin.unitcode | 185,15,17,10 | |
cristin.unitname | Senter for Materialvitenskap og Nanoteknologi kjemi | |
cristin.ispublished | true | |
cristin.fulltext | original | |
cristin.qualitycode | 2 | |
dc.identifier.cristin | 1888227 | |
dc.identifier.bibliographiccitation | info: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.jtitle | Catalysis Today | |
dc.identifier.pagecount | 0 | |
dc.identifier.doi | https://doi.org/10.1016/j.cattod.2020.03.038 | |
dc.identifier.urn | URN:NBN:no-87014 | |
dc.type.document | Tidsskriftartikkel | |
dc.type.peerreviewed | Peer reviewed | |
dc.source.issn | 0920-5861 | |
dc.identifier.fulltext | Fulltext https://www.duo.uio.no/bitstream/handle/10852/84175/1/1-s2.0-S0920586120301553-main.pdf | |
dc.type.version | PublishedVersion | |
dc.relation.project | NFR/250795 | |