Untersuchung der Struktur und Reaktivität adsorbierter Moleküle auf Metalloberflächen mit winkelaufgelöster Röntgenphotoemission
Untersuchung der Struktur und Reaktivität adsorbierter Moleküle auf Metalloberflächen mit winkelaufgelöster Röntgenphotoemission
In this work an experiment for the investigation of surfaces with the methods of X-ray photoelectron spectroscopy (XPS) and X-ray phototelectron diffraction (XPD) is presented. A spectrometer with a multi-channel detection system allows to record photoelectron-spectra und photoelectron-diffraction-p...
Saved in:
Personal Name(s): | Werner, J. (Corresponding author) |
---|---|
Contributing Institute: |
Publikationen vor 2000; PRE-2000; Retrocat |
Imprint: |
Jülich
Forschungszentrum Jülich, Zentralbibliothek, Verlag
1998
|
Physical Description: |
VII, 106 p. |
Document Type: |
Report Book |
Research Program: |
ohne Topic |
Series Title: |
Berichte des Forschungszentrums Jülich
3590 |
Link: |
OpenAccess OpenAccess |
Publikationsportal JuSER |
In this work an experiment for the investigation of surfaces with the methods of X-ray photoelectron spectroscopy (XPS) and X-ray phototelectron diffraction (XPD) is presented. A spectrometer with a multi-channel detection system allows to record photoelectron-spectra und photoelectron-diffraction-patterns in reasonable times. Because of the dominant forward scattering the intensity maxima in these diffraction-patterns correlates with interatomic axes. This allows the determination of the structure of the adsorbed molecules in a straightforward manner. Adsorbed layers of methoxy/Ni(110), formate/Ni(110), formate/Cu(110) and acetate/Cu(110) were investigated. The formate- and acetate-molecules are bonded through their oxygen-atoms in a so-called bidentate-structure along the closed-packed rows of the (110)-surfaces. The O-C-O bonding-angle is determined as 122° ± 2°. Hints for an incorporation of atomic oxygen an substitution-places of the substrate lattice are discussed. |