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Journal Article

Quantitative adsorbate structure determination under catalytic reaction conditions

MPS-Authors
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Kreikemeyer-Lorenzo,  Dagmar
Chemical Physics, Fritz Haber Institute, Max Planck Society;

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Unterberger,  Werner
Chemical Physics, Fritz Haber Institute, Max Planck Society;

/persons/resource/persons21378

Blume,  Raoul
Inorganic Chemistry, Fritz Haber Institute, Max Planck Society;

/persons/resource/persons21590

Hävecker,  Michael
Inorganic Chemistry, Fritz Haber Institute, Max Planck Society;

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Rocha,  Tulio
Inorganic Chemistry, Fritz Haber Institute, Max Planck Society;

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Knop-Gericke,  Axel
Inorganic Chemistry, Fritz Haber Institute, Max Planck Society;

/persons/resource/persons22071

Schlögl,  Robert
Inorganic Chemistry, Fritz Haber Institute, Max Planck Society;

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PhysRevB.87.125420.pdf
(Publisher version), 405KB

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Citation

Kreikemeyer-Lorenzo, D., Unterberger, W., Blume, R., Hävecker, M., Rocha, T., Knop-Gericke, A., et al. (2013). Quantitative adsorbate structure determination under catalytic reaction conditions. Physical Review B, 87(12): 125420. doi:10.1103/PhysRevB.87.125420.


Cite as: https://hdl.handle.net/11858/00-001M-0000-0013-FCB1-7
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.