The interaction of gas molecules at atmospheric pressures with surfaces investigated with surface X-ray diffraction

H. Isern¹, K. Peters¹, P. Steadman¹, O. Robach¹, J. Alvarez^1,2, E. Lundgren^1,3 and S. Ferrer¹

¹European Synchrotron Radiation Facility, BP 220, F-38043 Grenoble Cedex, France
²Dept. Fisica CIII, Universidad Autonoma de Madrid, 28049 Madrid, Spain
³Institut für Allgemeine Physik, Technische Universität Wien, A-1040 Wien, Austria

Surf. Sci. 482-485 (2001) 101-106

The suitability of surface X-ray diffraction to study the structure of chemisorbed layers of light gas molecules is discussed. The sensitivity of the technique, for well ordered adlayers, is comparable to that of Auger spectroscopy (around 10^-2 monolayers). Surface crystallography is illustrated for CO/Rh(111) under UHV and also for CO/Au(111) near atmospheric pressure.

Correspondenc to: J. Alvarez.

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The interaction of gas molecules at atmospheric pressures with surfaces investigated with surface X-ray diffraction

H. Isern1, K. Peters1, P. Steadman1, O. Robach1, J. Alvarez1,2, E. Lundgren1,3 and S. Ferrer1

Surf. Sci. 482-485 (2001) 101-106

H. Isern¹, K. Peters¹, P. Steadman¹, O. Robach¹, J. Alvarez^1,2, E. Lundgren^1,3 and S. Ferrer¹