dc.date.accessioned | 2023-03-08T17:48:54Z | |
dc.date.available | 2023-03-08T17:48:54Z | |
dc.date.created | 2023-01-07T14:33:32Z | |
dc.date.issued | 2022 | |
dc.identifier.citation | Kvande, Karoline Prodinger, Sebastian Schlimpen, Fabian Beato, Pablo Pale, Patrick Chassaing, Stefan Svelle, Stian . Copper-zeolites Prepared by Solid-state Ion Exchange - Characterization and Evaluation for the Direct Conversion of Methane to Methanol. Topics in catalysis. 2022 | |
dc.identifier.uri | http://hdl.handle.net/10852/101038 | |
dc.description.abstract | Abstract Direct conversion of methane to methanol (MTM) over Cu-zeolites is a so-called “dream reaction” for the chemical industry. There is still a lot that can be done in order to optimize the reaction by e.g. achieving a deeper understanding of the reaction mechanism and the nature of the Cu-sites. In this study, we investigated a solid-state ion exchange method to incorporate Cu I ions into zeolites (MOR, BEA, ZSM-5 and FAU), as a more scalable technique. The solid-state ion exchange led to a Cu/Al ration of about 0.8, however with a heterogeneous distribution of Cu. Regardless, Fourier transform-infrared spectroscopy still revealed that most Brønsted acid sites were exchanged in all four samples. Further, CH 4 -temperature programmed reaction experiments showed that some Cu-sites formed were reactive towards CH 4 , with Cu I -MOR and Cu I -FAU having the largest CH 4 consumption. Ultimately, the Cu I -zeolites were tested in the MTM reaction and proved capable of producing methanol, even without the presence of Brønsted sites. A MOR with lower Cu/Al ratio (0.30) was also tested for comparison, and as this sample obtained a much higher productivity than the Cu I -MOR with high Cu-loading (0.10 vs. 0.03 mol MeOH /mol Cu ), it was demonstrated that some fine-tuning is necessary to obtain the active Cu sites for methane activation. | |
dc.language | EN | |
dc.rights | Attribution 4.0 International | |
dc.rights.uri | https://creativecommons.org/licenses/by/4.0/ | |
dc.title | Copper-zeolites Prepared by Solid-state Ion Exchange - Characterization and Evaluation for the Direct Conversion of Methane to Methanol | |
dc.title.alternative | ENEngelskEnglishCopper-zeolites Prepared by Solid-state Ion Exchange - Characterization and Evaluation for the Direct Conversion of Methane to Methanol | |
dc.type | Journal article | |
dc.creator.author | Kvande, Karoline | |
dc.creator.author | Prodinger, Sebastian | |
dc.creator.author | Schlimpen, Fabian | |
dc.creator.author | Beato, Pablo | |
dc.creator.author | Pale, Patrick | |
dc.creator.author | Chassaing, Stefan | |
dc.creator.author | Svelle, Stian | |
cristin.unitcode | 185,15,17,10 | |
cristin.unitname | Senter for Materialvitenskap og Nanoteknologi kjemi | |
cristin.ispublished | true | |
cristin.fulltext | original | |
cristin.qualitycode | 1 | |
dc.identifier.cristin | 2102485 | |
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=Topics in catalysis&rft.volume=&rft.spage=&rft.date=2022 | |
dc.identifier.jtitle | Topics in catalysis | |
dc.identifier.pagecount | 0 | |
dc.identifier.doi | https://doi.org/10.1007/s11244-022-01763-7 | |
dc.type.document | Tidsskriftartikkel | |
dc.type.peerreviewed | Peer reviewed | |
dc.source.issn | 1022-5528 | |
dc.type.version | PublishedVersion | |
dc.relation.project | NFR/237922 | |