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Surface x-ray study of the structure and morphology of the oxidized Pd(001) surface

Stierle, A ; Kasper, N ; Dosch, H ; Lundgren, Edvin LU ; Gustafson, Johan LU ; Mikkelsen, Anders LU and Andersen, Jesper N LU (2005) In Journal of Chemical Physics 122(4).
Abstract
The oxidation of Pd(100) and the formation of PdO was studied in situ using surface x-ray diffraction. A bulklike, epitaxial PdO film is formed at oxygen partial pressures beyond 1 mbar and sample temperatures exceeding 650 K. The main orientation is PdO(001)/Pd(001), based upon bulk reflections from the PdO film. By comparing with measurements from the Pd crystal truncation rods, we estimate an rms surface roughness of 6 Angstrom, in good agreement with previous high pressure scanning tunneling microscopy measurements. Finally, we observed the transformation from the (root5 x root5) surface oxide to PdO bulk oxide at 675 K and 50 mbar O-2 pressure.
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author
; ; ; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Journal of Chemical Physics
volume
122
issue
4
article number
044706
publisher
American Institute of Physics (AIP)
external identifiers
  • wos:000226807000057
  • scopus:22944491203
ISSN
0021-9606
DOI
10.1063/1.1834491
language
English
LU publication?
yes
id
419cfdd4-775b-4d93-8b11-f137a23412b2 (old id 253631)
date added to LUP
2016-04-01 12:23:38
date last changed
2025-10-14 09:03:15
@article{419cfdd4-775b-4d93-8b11-f137a23412b2,
  abstract     = {{The oxidation of Pd(100) and the formation of PdO was studied in situ using surface x-ray diffraction. A bulklike, epitaxial PdO film is formed at oxygen partial pressures beyond 1 mbar and sample temperatures exceeding 650 K. The main orientation is PdO(001)/Pd(001), based upon bulk reflections from the PdO film. By comparing with measurements from the Pd crystal truncation rods, we estimate an rms surface roughness of 6 Angstrom, in good agreement with previous high pressure scanning tunneling microscopy measurements. Finally, we observed the transformation from the (root5 x root5) surface oxide to PdO bulk oxide at 675 K and 50 mbar O-2 pressure.}},
  author       = {{Stierle, A and Kasper, N and Dosch, H and Lundgren, Edvin and Gustafson, Johan and Mikkelsen, Anders and Andersen, Jesper N}},
  issn         = {{0021-9606}},
  language     = {{eng}},
  number       = {{4}},
  publisher    = {{American Institute of Physics (AIP)}},
  series       = {{Journal of Chemical Physics}},
  title        = {{Surface x-ray study of the structure and morphology of the oxidized Pd(001) surface}},
  url          = {{http://dx.doi.org/10.1063/1.1834491}},
  doi          = {{10.1063/1.1834491}},
  volume       = {{122}},
  year         = {{2005}},
}