Formation of an oxy-chloride overlayer at a bi(0001) surface

Afsin B., Roberts M.

Spectroscopy Letters, cilt.27, sa.1, ss.139-146, 1994 (Scopus) identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 27 Sayı: 1
  • Basım Tarihi: 1994
  • Doi Numarası: 10.1080/00387019408002513
  • Dergi Adı: Spectroscopy Letters
  • Derginin Tarandığı İndeksler: Scopus
  • Sayfa Sayıları: ss.139-146
  • Anahtar Kelimeler: facile chemimption, H-abstraction, oxy-chloride, X-ray photoelectron spectroscopy
  • Ondokuz Mayıs Üniversitesi Adresli: Evet

Özet

A facile oxygen-induced chemisorptive replacement reaction occurs when a Bi(0001)-O overlayer is exposed to hydrogen chloride at 298K. The overlayer, which conforms to the stoichiometry BiOCl2, is stable in contrast to analogous chemistry observed earlier with a Pb(l 10) surface. Evidence for discrete localized states associated with Bi2+ or Bi3+ species is observed from shifts in the Bi(4f) binding energies while the charge distribution within the bismuth-chlorine bond is shown to be sensitive to the presence of oxygen adatoms within the oxy-chloride overlayer. © 1994, Taylor & Francis Group, LLC. All rights reserved.