We have investigated resonance electron scattering by both physisorbed and chemisorbed molecular O2 on Pt( 111). In each case, the molecular &-shape resonance is manifest in the vibrational excitation cross section but the resonance energy is lowered in comparison with the free molecule. We attribut
The 3σu* resonance of O2 chemisorbed on Pd(111) and Pt(111)
✍ Scribed by H. Kuhlenbeck; M. Lepage; M. Michaud; L. Sanche; H. Sambe; D.E. Ramaker
- Publisher
- Elsevier Science
- Year
- 1995
- Tongue
- English
- Weight
- 565 KB
- Volume
- 238
- Category
- Article
- ISSN
- 0009-2614
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✦ Synopsis
The Y = 0 + 1 vibrational excitation function for 0, chemisorbed on a Pt(ll1) surface is reported for the incidence electron energies l-9 eV. This measurement, combined with experimental results for chemisorbed O,/Pd(lll) previously reported in the literature, shows the presence of the 30: resonance just above the vacuum level.
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The formation of methanol adsorbate as a structure sensitive process was studied on platinum single crystal surfaces. The measurements were performed on reproducibly prepared, clean and either well ordered ("undisturbed") or cycled ("disturbed") Pt(100) and Pt(ll1) single crystal electrodes. Essenti