Surface vibrations of CO on W(100)
作者： H Froitzheim , H Ibach , S Lehwald
DOI: 10.1016/0039-6028(77)90326-0
关键词: Surface (mathematics) 、 High resolution 、 Dissociative adsorption 、 Vibrational spectrum 、 Atom 、 Vibration 、 Analytical chemistry 、 Chemistry 、 Atomic physics 、 Carbon 、 Spectroscopy
摘要: Abstract High resolution electron-energy-loss spectroscopy has been used to study the surface vibrations of CO on a W(100) at 300 K. For small exposures (β-CO) two losses ∼68 meV and ∼78 are observed. This vibrational spectrum β-CO is clear indication dissociative adsorption with carbon oxygen atoms in fourfold coordination sites each. With further exposure additional 45 258 observed, which represent vibration undissociated α-CO upright position top W atom. Furtheron results coadsorption H 2 /CO O reported.
harvard.edu
elsevier.com
sci-hub.se 参考文章(24)
L. H. Little, A. V. Kiselev, V. I. Lygin, Infrared Spectra of Adsorbed Species ,(1966)
T.E. Felter, P.J. Estrup, Model of β-CO on Mo(100): Dissociative adsorption☆ Surface Science. ,vol. 54, pp. 179- 182 ,(1976) , 10.1016/0039-6028(76)90097-2
Peter L. Young, Robert Gomer, Does co dissociate on the (100) plane of tungsten Surface Science. ,vol. 44, pp. 277- 280 ,(1974) , 10.1016/0039-6028(74)90111-3
E. Evans, D. L. Mills, Theory of Inelastic Scattering of Slow Electrons by Long-Wavelength Surface Optical Phonons Physical Review B. ,vol. 5, pp. 4126- 4139 ,(1972) , 10.1103/PHYSREVB.5.4126
Clarence G. Goymour, David A. King, Chemisorption of carbon monoxide on tungsten. Part 2.—Lateral interaction model for desorption kinetics Journal of the Chemical Society, Faraday Transactions 1: Physical Chemistry in Condensed Phases. ,vol. 69, pp. 749- 760 ,(1973) , 10.1039/F19736900749
J. M. Baker, D. E. Eastman, Photoemission Spectra from Adsorbed O on W(110) and CO on W(100) Journal of Vacuum Science and Technology. ,vol. 10, pp. 223- 226 ,(1973) , 10.1116/1.1317946
Llewellyn H. Jones, Vibrational Spectrum of Nickel Carbonyl Journal of Chemical Physics. ,vol. 28, pp. 1215- 1219 ,(1958) , 10.1063/1.1744371
Llewellyn H. Jones, Vibrational spectra and force constants of the hexacarbonyls of chromium, molybdenum and tungsten Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy. ,vol. 19, pp. 329- 338 ,(1963) , 10.1016/0371-1951(63)80112-5
H. Froitzheim, H. Ibach, S. Lehwald, Surface Sites of H on W(100) Physical Review Letters. ,vol. 36, pp. 1549- 1551 ,(1976) , 10.1103/PHYSREVLETT.36.1549
John T. Yates, Robert G. Greenler, Irmina Ratajczykowa, David A. King, Reflection-absorption infrared spectrum of α-CO chemisorbed on polycrystalline tungsten Surface Science. ,vol. 36, pp. 739- 755 ,(1973) , 10.1016/0039-6028(73)90416-0