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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
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Journal of Chemical Physics
volume
122
issue
4
publisher
American Institute of Physics
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
2007-10-05 15:29:21
date last changed
2017-11-12 03:29:42
@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.},
  articleno    = {044706},
  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},
  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},
  volume       = {122},
  year         = {2005},
}