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Quantitative adsorbate structure determination under catalytic reaction conditions
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Kreikemeyer-Lorenzo, D., Unterberger, W. (Werner), Blume, R., Hävecker, M., Rocha, T. C. R., Knop-Gericke, A., Schlögl, R., Lerotholi, T. J., Duncan, David A. and Woodruff, D. P. (2013) Quantitative adsorbate structure determination under catalytic reaction conditions. Physical Review B (Condensed Matter and Materials Physics), Volume 87 (Number 12). 125420 . doi:10.1103/PhysRevB.87.125420
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Official URL: http://dx.doi.org/10.1103/PhysRevB.87.125420
Abstract
Current methods allow quantitative local structure determination of adsorbate geometries on surfaces in ultrahigh vacuum (UHV) but are incompatible with the higher pressures required for a steady-state catalytic reactions. Here we show that photoelectron diffraction can be used to determine the structure of the methoxy and formate reaction intermediates during the steady-state oxidation of methanol over Cu(110) by taking advantage of recent instrumental developments to allow near-ambient pressure x-ray photoelectron spectroscopy. The local methoxy site differs from that under static UHV conditions, attributed to the increased surface mobility and dynamic nature of the surface under reaction conditions.
| Item Type: | Journal Article | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Subjects: | T Technology > TJ Mechanical engineering and machinery | ||||||||
| Divisions: | Faculty of Science > Physics | ||||||||
| Library of Congress Subject Headings (LCSH): | Photoelectron spectroscopy, Catalysis, Methanol -- Oxidation | ||||||||
| Journal or Publication Title: | Physical Review B (Condensed Matter and Materials Physics) | ||||||||
| Publisher: | American Physical Society | ||||||||
| ISSN: | 1098-0121 | ||||||||
| Official Date: | 19 March 2013 | ||||||||
| Dates: |
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| Volume: | Volume 87 | ||||||||
| Number: | Number 12 | ||||||||
| Article Number: | 125420 | ||||||||
| DOI: | 10.1103/PhysRevB.87.125420 | ||||||||
| Status: | Peer Reviewed | ||||||||
| Publication Status: | Published | ||||||||
| Access rights to Published version: | Restricted or Subscription Access |
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