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Initial cross section for photodissociation of phosgene on Ag(111)
The initial cross section for UV photodissociation of phosgene (Cl2CO) on Ag(111) at 100 K has been measured. With photon energies greater than 2.6 eV, submonolayer Cl2CO is readily photodissociated t...
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A new technique to calculate steepest descent paths in flexible polyatomic systems

Ultraviolet-laser induced dissociation and desorption of water adsorbed on Pd(111)

J. Chem. Phys. 92, 1509 (1990); doi:10.1063/1.458111

Issue Date: 15 January 1990

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M. Wolf, S. Nettesheim, J. M. White, E. Hasselbrink, and G. Ertl
Fritz-Haber-Institut der Max-Planck-Gesellschaft, D-1000 Berlin 33, West Germany
Ultraviolet-laser irradiation (6.4 eV and 5.0 eV) of the first layer of water adsorbed on a Pd(111) surface at 90 K leads to desorption of H2O and to conversion of the adsorbed state as manifested in the thermal desorption spectra. The latter effect is attributed to photodissociation of water on the surface. Time-of-flight measurements show that water molecules desorb with the same translational energy of about 600 K for both photon energies. While desorption is suppressed with adsorbed multilayers, conversion within the first layer still proceeds. The Journal of Chemical Physics is copyrighted by The American Institute of Physics.
History: Received 30 October 1989; accepted 9 November 1989
Permalink: http://link.aip.org/link/?JCPSA6/92/1509/1
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KEYWORDS and PACS

Keywords
PACS
  • 82.50.Fv
    Physical chemistry Photochemistry and radiation chemistry Photolysis, photodissociation, and photoionization by infrared, visible, and ultraviolet radiation
  • 68.45.Da
    Surfaces and interfaces; thin films and whiskers (structure and nonelectronic properties) Solidfluid interfaces Evaporation and condensation; adsorption and desorption kinetics
  • YEAR: 1990

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PUBLICATION DATA

ISSN:
0021-9606 (print)   1089-7690 (online)
Publisher:
AIP is a member of CrossRef AIP

REFERENCES (4)
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  1. M. Watanabe, H. Kitamura, and Y. Nakai, in Vacuum Ultraviolet Radiation Physics, edited by E.-E. Koch, R. Hänsel, and C. Kunz (Pergamon, New York, 1974), p. 70.
  2. E. Hasselbrink, S. Jakubith, S. Nettesheim, M. Wolf, A. Cassuto, and G. Ertl, J. Chem. Phys. (in press).
  3. P. A. Thiel and T. E. Madey, Surf. Sci. Rep. 7, 211 (1987). [Inspec]
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    5. E. M. Stuve, S. W. Jorgensen, and R. J. Madix, Surf. Sci. 146, 179 (1984); [Inspec] [ISI] [ChemPort]
    C. Nyberg and C. G. Tengstål, J. Chem. Phys. 80, 3463 (1984). [ISI] [ChemPort]

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