한국진공학회:학술대회논문집 (Proceedings of the Korean Vacuum Society Conference)

한국진공학회 (The Korean Vacuum Society)
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Adsorption of molecular oxygen and $SO_2$ on Ni(100)

  • Hyunsukl Jeong (Department of chemistry, Kyungpook National University) ;
  • Changmin (Department of chemistry, Kyungpook National University) ;
  • Kim, Eunha (Department of chemistry, Kyungpook National University) ;
  • Hojun Jeong (Department of chemistry, Kyungpook National University)
  • 발행 : 1999.07.01
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초록

The interaction of oxygen with a Ni(100) surface has been investigated using X-ray Photoelectron Spectroscopy (XPS) and Near-Edge X-ray Absorption Fine Structure (NEXAFS) technique. Below 200L oxygen exposure, molecular oxygen was dissociated to atomic oxygen. Increasing oxygen exposure, -1s binding energy shifted from 531.0 eV to 533.0 eV due to molecular adsorption. The presence of molecular oxygen species was confirmed by NEXAFS. Molecular oxygen adsorbed on Ni(100) was oriented perpendicular to the surface. Upon heating over 150K molecular adsorbed oxygen surface was also analyzed using NEEXFS.

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