H. Ostrom, H. Oberg, H. Xin, J. Larue, Martin Beye, J. Gladh, M. L. Ng, J. A. Sellberg, S. Kaya, G. Mercurio, D. Nordlund, Markus Hantschmann, F. Hieke, D. Kuehn, W. F. Schlotter, G. L. Dakovski, J. J. Turner, M. P. Minitti, A. Mitra, S. P. Moeller, Alexander Föhlisch, M. Wolf, W. Wurth, Mats Persson, J. K. Norskov, Frank Abild-Pedersen, Hirohito Ogasawara, Lars G. M. Pettersson, A. Nilsson
- Femtosecond x-ray laser pulses are used to probe the carbon monoxide (CO) oxidation reaction on ruthenium (Ru) initiated by an optical laser pulse. On a time scale of a few hundred femtoseconds, the optical laser pulse excites motions of CO and oxygen (O) on the surface, allowing the reactants to collide, and, with a transient close to a picosecond (ps), new electronic states appear in the OK-edge x-ray absorption spectrum. Density functional theory calculations indicate that these result from changes in the adsorption site and bond formation between CO and O with a distribution of OC-O bond lengths close to the transition state (TS). After 1 ps, 10% of the CO populate the TS region, which is consistent with predictions based on a quantum oscillator model.
Metadaten| Verfasserangaben: | H. Ostrom, H. Oberg, H. Xin, J. Larue, Martin BeyeORCiDGND, J. Gladh, M. L. Ng, J. A. Sellberg, S. Kaya, G. Mercurio, D. Nordlund, Markus HantschmannORCiDGND, F. Hieke, D. Kuehn, W. F. Schlotter, G. L. Dakovski, J. J. Turner, M. P. Minitti, A. Mitra, S. P. Moeller, Alexander FöhlischORCiDGND, M. Wolf, W. Wurth, Mats Persson, J. K. Norskov, Frank Abild-Pedersen, Hirohito Ogasawara, Lars G. M. Pettersson, A. Nilsson |
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| DOI: | https://doi.org/10.1126/science.1261747 |
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| ISSN: | 0036-8075 |
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| ISSN: | 1095-9203 |
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| Pubmed ID: | https://pubmed.ncbi.nlm.nih.gov/25722407 |
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| Titel des übergeordneten Werks (Englisch): | Science |
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| Verlag: | American Assoc. for the Advancement of Science |
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| Verlagsort: | Washington |
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| Publikationstyp: | Wissenschaftlicher Artikel |
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| Sprache: | Englisch |
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| Jahr der Erstveröffentlichung: | 2015 |
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| Erscheinungsjahr: | 2015 |
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| Datum der Freischaltung: | 27.03.2017 |
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| Band: | 347 |
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| Ausgabe: | 6225 |
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| Seitenanzahl: | 5 |
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| Erste Seite: | 978 |
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| Letzte Seite: | 982 |
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| Fördernde Institution: | U.S. Department of Energy, Basic Energy Science through SUNCAT Center
for Interface Science and Catalysis; Swedish Research Council; Knut and
Alice Wallenberg foundation; U.S. Department of Energy through SLAC
Laboratory Directed Research and Development program
[DE-AC02-76SF00515]; Volkswagen Stiftung; Deutsche
Forschungsgemeinschaft within the excellence cluster "Center for
Ultrafast Imaging (CUI)"; LCLS, Stanford University through Stanford
Institute for Materials Energy Sciences (SIMES); Lawrence Berkeley
National Laboratory (LBNL), University of Hamburg through the
Bundesministerium fur Bildung, Wissenschaft; Forschung und Technologie
priority program [FSP 301]; Center for Free Electron Laser Science
(CFEL) |
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| Organisationseinheiten: | Mathematisch-Naturwissenschaftliche Fakultät / Institut für Physik und Astronomie |
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| Peer Review: | Referiert |
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