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Real-Time Elucidation of Catalytic Pathways in CO Hydrogenation on Ru
Stockholm University, Faculty of Science, Department of Physics. SLAC National Accelerator Laboratory, USA; Chapman University, USA; Fritz-Haber Institute of the Max-Planck-Society, Germany.
Stockholm University, Faculty of Science, Department of Physics. Charles University in Prague, Czech Republic; Institute of Physics of the Czech Academy of Sciences, Czech Republic.
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Number of Authors: 19
2017 (English)In: Journal of Physical Chemistry Letters, ISSN 1948-7185, E-ISSN 1948-7185, Vol. 8, no 16, 3820-3825 p.Article in journal, Letter (Refereed) Published
Abstract [en]

The direct elucidation of the reaction pathways in heterogeneous catalysis has been challenging due to the short-lived nature of reaction intermediates. Here, we directly measured on ultrafast time scales the initial hydrogenation steps of adsorbed CO on a Ru catalyst surface, which is known as the bottleneck reaction in syngas and CO2 reforming processes. We initiated the hydrogenation of CO with an ultrafast laser temperature jump and probed transient changes in the electronic structure using real-time X-ray spectroscopy. In combination with theoretical simulations, we verified the formation of CHO during CO hydrogenation.

Place, publisher, year, edition, pages
2017. Vol. 8, no 16, 3820-3825 p.
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Chemical Sciences Nano Technology Materials Engineering Physical Sciences
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URN: urn:nbn:se:su:diva-147080DOI: 10.1021/acs.jpclett.7b01549ISI: 000408187400017PubMedID: 28759996OAI: oai:DiVA.org:su-147080DiVA: diva2:1142131
Available from: 2017-09-18 Created: 2017-09-18 Last updated: 2017-09-18Bibliographically approved

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