Quantitative adsorbate structure determination under catalytic reaction 
conditions

Kreikemeyer-Lorenzo, Dagmar; Unterberger, Werner; Blume, Raoul; Hävecker, Michael; Rocha, Tulio; Knop-Gericke, Axel; Schlögl, Robert; Lerotholi, T. J.; Duncan, D. A.; Woodruff, D. P.

doi:10.1103/PhysRevB.87.125420

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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;

/persons/resource/persons22013

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

/persons/resource/persons21743

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
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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.