Phonon- versus electron-mediated desorption and oxidation of CO on Ru(0001)

Science

Volumn 285, Issue 5430, 1999, Pages 1042-1045

  Bonn, M ^a   Funk, S ^a   Hess, Ch ^a   Denzler, D N ^a   Stampfl, C ^a   Scheffler, M ^a   Wolf, M ^a   Ertl, G ^a  

^a FRITZ HABER INSTITUT DER MAX PLANCK GESELLSCHAFT   (Germany)

Author keywords

[No Author keywords available]

Indexed keywords

CARBON MONOXIDE; OXYGEN; RUTHENIUM;

ARTICLE; CHEMICAL REACTION; DESORPTION; ELECTRON; EXCITATION; HEATING; OXIDATION; PRIORITY JOURNAL; REACTION ANALYSIS;

EID: 0033551901     PISSN: 00368075     EISSN: None     Source Type: Journal    
DOI: 10.1126/science.285.5430.1042     Document Type: Article

References (30)

1. W. Ho, Acc. Chem. Res. 31, 567 (1998); J. Wintterlin, S. Völkening, T. V. W. Janssens, T. Zambelli, G. Ertl, Science 278, 1931 (1997); J. K. Gimzewski and C. Joachim, ibid. 283, 1683 (1999).
2. W. Ho, Acc. Chem. Res. 31, 567 (1998); J. Wintterlin, S. Völkening, T. V. W. Janssens, T. Zambelli, G. Ertl, Science 278, 1931 (1997); J. K. Gimzewski and C. Joachim, ibid. 283, 1683 (1999).
3. W. Ho, Acc. Chem. Res. 31, 567 (1998); J. Wintterlin, S. Völkening, T. V. W. Janssens, T. Zambelli, G. Ertl, Science 278, 1931 (1997); J. K. Gimzewski and C. Joachim, ibid. 283, 1683 (1999).
4. H.-L. Dai and W. Ho, Eds. Laser Spectroscopy and Photochemistry on Metal Surfaces (World Scientific, Singapore, 1995), pp. 625-1045; R. R. Cavanagh, D. S. King, J. C. Stephenson, T. F. Heinz, J. Phys. Chem. 97, 786 (1993).
5. H.-L. Dai and W. Ho, Eds. Laser Spectroscopy and Photochemistry on Metal Surfaces (World Scientific, Singapore, 1995), pp. 625-1045; R. R. Cavanagh, D. S. King, J. C. Stephenson, T. F. Heinz, J. Phys. Chem. 97, 786 (1993).
6. F.-J. Kao, D. G. Busch, D. Gomes da Costa, W. Ho, Phys. Rev. Lett. 70, 4098 (1993); D. G. Busch and W. Ho, ibid. 77, 1338 (1996).
7. F.-J. Kao, D. G. Busch, D. Gomes da Costa, W. Ho, Phys. Rev. Lett. 70, 4098 (1993); D. G. Busch and W. Ho, ibid. 77, 1338 (1996).
8. S. Deliwala et al., Chem. Phys. Lett. 242, 627 (1995); R. J. Finlay, T. H. Her, C. Wu, E. Mazur, ibid. 274, 499 (1997); T. H. Her, R. J. Finlay, C. Wu, E. Mazur, J. Chem. Phys. 108, 8595 (1998).
9. S. Deliwala et al., Chem. Phys. Lett. 242, 627 (1995); R. J. Finlay, T. H. Her, C. Wu, E. Mazur, ibid. 274, 499 (1997); T. H. Her, R. J. Finlay, C. Wu, E. Mazur, J. Chem. Phys. 108, 8595 (1998).
10. S. Deliwala et al., Chem. Phys. Lett. 242, 627 (1995); R. J. Finlay, T. H. Her, C. Wu, E. Mazur, ibid. 274, 499 (1997); T. H. Her, R. J. Finlay, C. Wu, E. Mazur, J. Chem. Phys. 108, 8595 (1998).
11. A. Böttcher, H. Niehus, S. Schwegman, H. Over, G. Ertl, J. Phys. Chem. B 101, 11185 (1997).
12. K. L. Kostov, H. Rauscher, D. Menzel, Surf. Sci. 278, 62 (1992).
13. F. Budde et al., Phys. Rev. Lett. 66, 3024 (1991).
14. J. A. Misewich, T. F. Heinz, D. M. Newns, ibid. 68, 3737 (1992).
15. T. E. Madey, J. T. Yates Jr., D. A. King, C. J. Uhlaner, J. Chem. Phys. 52, 5215 (1970).
16. M. Yata and R. J. Madix, Surf. Sci. 328, 171 (1995).
17. The unoccupied 2π* orbital of CO, thought to be relevant for electronically driven desorption [J. A. Prybyla, H. W. K. Tom, G. D. Aumiller, Phys. Rev. Lett. 68, 503 (1992)], lies too far from the Fermi level [∼5 eV; C. Benndorf et al., Surf. Sci. 191, 455 (1987)] to be accessible for the hot electrons, so that the desorption is phonon driven.
18. The unoccupied 2π* orbital of CO, thought to be relevant for electronically driven desorption [J. A. Prybyla, H. W. K. Tom, G. D. Aumiller, Phys. Rev. Lett. 68, 503 (1992)], lies too far from the Fermi level [∼5 eV; C. Benndorf et al., Surf. Sci. 191, 455 (1987)] to be accessible for the hot electrons, so that the desorption is phonon driven.
19. l)] With this approach it is possible to study systems at high electronic temperatures by using density-functional theory.
20. l)] With this approach it is possible to study systems at high electronic temperatures by using density-functional theory.
21. l)] With this approach it is possible to study systems at high electronic temperatures by using density-functional theory.
22. M. Brandbyge et al., Phys. Rev. B 52, 6042 (1995).
23. L. M. Struck et al., Phys. Rev. Lett. 77, 4576 (1996).
24. S. I. Anisimov, B. L. Kapeliovich, T. L. Perel'man, Zh. Eksp. Teor. Fiz. 66, 776 (1974) [Sov. Phys. JETP 39, 375 (1974)]; S. I. Anisimov and B. Rethfeld, Proc. SPIE 3093, 192 (1997).
25. S. I. Anisimov, B. L. Kapeliovich, T. L. Perel'man, Zh. Eksp. Teor. Fiz. 66, 776 (1974) [Sov. Phys. JETP 39, 375 (1974)]; S. I. Anisimov and B. Rethfeld, Proc. SPIE 3093, 192 (1997).
26. S. I. Anisimov, B. L. Kapeliovich, T. L. Perel'man, Zh. Eksp. Teor. Fiz. 66, 776 (1974) [Sov. Phys. JETP 39, 375 (1974)]; S. I. Anisimov and B. Rethfeld, Proc. SPIE 3093, 192 (1997).
27. el.
28. C. Stampfl, S. Schwegmann, H. Over, M. Scheffler, G. Ertl, Phys. Rev. Lett. 77, 3371 (1996).
29. F. M. Hoffmann and M. D. Weisel, Surf. Sci. 253, 59 (1991).
30. We gratefully acknowledge H.J. Bakker for helpful discussions. This work was supported in part by the Deutsche Forschungsgemeinschaft through SFB 450. The home page of the Ultrafast Surface Dynamics Group, Department of Physical Chemistry, Fritz-Haber-Institut, is available at www.fhi-berlin.mpg.de/pc/femtos/. M.B. thanks the European Community (TMR program) for financial support.