Laser induced dissociation of NO2 adsorbed on Pd(111)

Hasselbrink, Eckart; Nettesheim, Stefan; Wolf, Martin; Cassuto, A.; Ertl, Gerhard

doi:10.1016/0042-207X(90)90337-X

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Laser induced dissociation of NO₂ adsorbed on Pd(111)

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Hasselbrink, Eckart
Physical Chemistry, Fritz Haber Institute, Max Planck Society;

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Nettesheim, Stefan
Fritz Haber Institute, Max Planck Society;

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Wolf, Martin
Physical Chemistry, Fritz Haber Institute, Max Planck Society;

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Ertl, Gerhard
Physical Chemistry, Fritz Haber Institute, Max Planck Society;

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Citation

Hasselbrink, E., Nettesheim, S., Wolf, M., Cassuto, A., & Ertl, G. (1990). Laser induced dissociation of NO₂ adsorbed on Pd(111). Vacuum, 41(1-3), 287-288. doi:10.1016/0042-207X(90)90337-X.

Cite as: https://hdl.handle.net/21.11116/0000-0007-99B4-1

Abstract

UV-photodissociation of submonolayer NO₂ adsorbed on top of a saturated layer of NO on Pd(111) yields desorption of NO fragments with a cross section of 3–10⁻¹⁸ cm² at 6.4 eV photon energy. The wavelength dependence and the quantum state distributions demonstrate the non-thermal origin of the ejected NO fragments. A novel approach utilizing polarized light provides clear evidence that the primary process consists of an electronic excitation of the metallic substrate rather than direct absorption by the adsorbate.