Adsorption sites of CO on Pt (111) |
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| Authors: | H. Froitzheim H. Hopster H. Ibach S. Lehwald |
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| Affiliation: | 1. Institut für Grenzfl?chenforschung und Vakuumphysik, Kernforschungsanlage, D-5170, Jülich, Fed. Rep. Germany
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| Abstract: | The surface vibrations of CO adsorbed on Pt(111) single crystal surfaces at 320 K have been studied by electron-energy-loss spectroscopy. At low coverages two vibration modes at 58 and ∼260 meV are observed. For exposures >0.2 Langmuir two additional modes at 45 and 232 meV develop. Considering also the observed LEED structures these vibrations are attributed to CO molecules being adsorbed upright in on-top and bridge sites, respectively. |
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| Keywords: | 68.20 |
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