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Sensitivity of catalysis to surface structure: The example of CO oxidation on Rh under realistic conditions

Gustafson, J.; Westerström, Rasmus LU ; Mikkelsen, Anders LU ; Torrelles, X.; Balmes, O.; Bovet, Nicolas LU ; Andersen, Jesper N LU ; Baddeley, C. J. and Lundgren, Edvin LU (2008) In Physical Review B (Condensed Matter and Materials Physics) 78(4).
Abstract
Using a combination of surface x-ray diffraction and mass spectrometry at realistic pressures, the CO oxidation reactivity of Rh(111) and Rh(100) model catalysts has been studied in conjunction with the surface structure. The measurements show that the presence of a specific thin surface oxide is crucial for the high activity of the Rh based CO oxidation. As this oxide is readily formed on all Rh facets, we conclude that the specific Rh crystal planes exposed during catalysis will not directly influence the reactivity. This is fortified by the very close similarity between the Rh(111) and the Rh(100) results.
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Physical Review B (Condensed Matter and Materials Physics)
volume
78
issue
4
publisher
American Physical Society
external identifiers
  • wos:000258190400103
  • scopus:48449093118
ISSN
1098-0121
DOI
10.1103/PhysRevB.78.045423
language
English
LU publication?
yes
id
3bbb8598-d2ba-4d60-8c40-259c32d6102c (old id 1253285)
date added to LUP
2008-10-30 13:42:54
date last changed
2017-11-12 03:39:12
@article{3bbb8598-d2ba-4d60-8c40-259c32d6102c,
  abstract     = {Using a combination of surface x-ray diffraction and mass spectrometry at realistic pressures, the CO oxidation reactivity of Rh(111) and Rh(100) model catalysts has been studied in conjunction with the surface structure. The measurements show that the presence of a specific thin surface oxide is crucial for the high activity of the Rh based CO oxidation. As this oxide is readily formed on all Rh facets, we conclude that the specific Rh crystal planes exposed during catalysis will not directly influence the reactivity. This is fortified by the very close similarity between the Rh(111) and the Rh(100) results.},
  author       = {Gustafson, J. and Westerström, Rasmus and Mikkelsen, Anders and Torrelles, X. and Balmes, O. and Bovet, Nicolas and Andersen, Jesper N and Baddeley, C. J. and Lundgren, Edvin},
  issn         = {1098-0121},
  language     = {eng},
  number       = {4},
  publisher    = {American Physical Society},
  series       = {Physical Review B (Condensed Matter and Materials Physics)},
  title        = {Sensitivity of catalysis to surface structure: The example of CO oxidation on Rh under realistic conditions},
  url          = {http://dx.doi.org/10.1103/PhysRevB.78.045423},
  volume       = {78},
  year         = {2008},
}