Minova, IB;
Matam, SK;
Greenaway, A;
Catlow, CRA;
Frogley, MD;
Cinque, G;
Wright, PA;
(2019)
Elementary Steps in the Formation of Hydrocarbons from Surface Methoxy Groups in HZSM-5 Seen by Synchrotron Infrared Microspectroscopy.
ACS Catalysis
, 9
(7)
pp. 6564-6570.
10.1021/acscatal.9b01820.
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Abstract
Synchrotron infrared microspectroscopy has identified with high temporal resolution (down to 0.25 s) the initial events occurring when methanol vapor is in contact with a crystal of zeolite HZSM-5. The first alkenes are generated directly from methoxy groups formed at the acid sites via their deprotonation. These alkenes can either desorb directly or oligomerize and cyclize to form dimethylcyclopentenyl cations. The oligomeric and dimethylcyclopentenyl cations are the first major components of the hydrocarbon pool that precede aromatic hydrocarbons and lead to indirect alkene formation. The technique observes these events in real time.
Type: | Article |
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Title: | Elementary Steps in the Formation of Hydrocarbons from Surface Methoxy Groups in HZSM-5 Seen by Synchrotron Infrared Microspectroscopy |
Open access status: | An open access version is available from UCL Discovery |
DOI: | 10.1021/acscatal.9b01820 |
Publisher version: | https://doi.org/10.1021/acscatal.9b01820 |
Language: | English |
Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. |
Keywords: | synchrotron infrared microspectroscopy, micro-FTIR, ZSM-5, methanol-to-hydrocarbons, hydrocarbon pool, carbon−carbon bond formation |
UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Chemistry |
URI: | https://discovery.ucl.ac.uk/id/eprint/10119230 |
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