Abstract
The adsorption, migration and desorption of NO on single tungsten planes was studied by means of probe-hole field emission and thermal desorption techniques over a wide range of coverages and temperatures. A molecular beam system that enabled deposition of strictly controlled doses of gas was employed. The system was connected to a probe-hole field emission tube in which the electron emission from individual planes was measured by means of a photoelectric method. Work function changes were measured for the (211), (100) and (111) planes as a function of coverage and temperature. Thermal desorption spectra were obtained for polycrystalline ribbon and single W (100) plane. It has been concluded from the results obtained that at 77K NO is adsorbed as molecular species, being a precursor to dissociative adsorption at higher temperatures. The adsorbed nitrogen resulting from dissociation exists mainly in the ß1 state on the (100) plane. The corresponding desorption peak is very narrow and well defined as compared with the much weaker ß2 peak. The desorption spectrum of the ß1 state was satisfactorily compared with the computed one from the Wigner-Polanyi first order desorption kinetics and a lateral interaction dependent activation energy.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
J.T. Yates, Jr., and T.E. Madey, J. of Chem. Phys., 45 (1967) 1623.
J.T. Yates, Jr., and T.E. Madey and N.E. Erickson; Surf. Sci., 43 (1974) 526.
R. Klein and J.T. Yates, Jr., Japan. J. Appl. Phys. Suppl. 2, pt.2 (1974) 461.
S. Asami and T. Nakagima, Japan. J. Appl. Phys. Suppl. 2, pt.2 (1974) 237.
J.C. Fuggle and D. Menzel, Surf. Sci., 79 (1979) 1.
A. K. Bhattacharya, J. Q. Broughton and D. L. Perry, Surf. Sci., 78 (1978) L689.
R.I. Masel, E. Umbach, J.C. Fuggle and D. Menzel, Surf. Sci., 79 (1979) 26.
K. J. Rawlings, S. D. Foulias and B. J. Hopkins, Surf. Sci., 108 (1981) 49.
R. Gomer and R. Diffoggio. The 25th International Field Emission Symposium (1978).
R. Gomer. Field Emission and Field Ionization (Harvard University Press — 1961 ).
T. Tamura and T. Hamamura, Bull. Chem. Soc. Japan, 49 (1976) 1780.
E. Umbach, S. Kulkarni, P. Feulner and D. Menzel, Surf. Sci., 88 (1979) 65.
L.Y. Chan and F.W.B. Einstein, Acta Cryst., B 26 (1970) 1899.
C.C. Su and J.W. Faller, J. Organomet. Chem., 84 (1975) 53.
W.L. Jolly, Electron Spectroscopy: Theory, Techniques and Applications, Volume 1, Ed. by Brundle and Baker (Academic Press, 1977), page 119.
M. Wilf and M. Folman, Surf. Sci., 52 (1975) 10.
A.E. Bell, L.W. Swanson and L.C. Crouser, Surf. Sci., 10 (1968) 254.
A. Lubezky and M. Folman, Trans. Faraday Soc., 67 (1971) 58.
R.E. Viturro, Ph.D. Thesis, Israel Institute of Technology, 1983.
L.R. Clavenna and L.D. Schmidt, Surf. Sci., 22 (1970) 365.
E. Pelach, R.E. Viturro and M. Folman, to be published.
M. Wilf and M. Folman, J. Chem. Soc., Faraday Trans. I,72 (1976) 1165.
C.G. Goymour and D.A. King, J. Chem. Soc., Faraday Trans. I, 69 (1973) 736.
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 1984 D. Reidel Publishing Company
About this paper
Cite this paper
Viturro, R.E., Folman, M. (1984). Probe-Hole Fem and TDS Studies of No Adsorbed on Individual Tungsten Planes. In: Pullman, B., Jortner, J., Nitzan, A., Gerber, B. (eds) Dynamics on Surfaces. The Jerusalem Symposia on Quantum Chemistry and Biochemistry, vol 17. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-5237-9_21
Download citation
DOI: https://doi.org/10.1007/978-94-009-5237-9_21
Publisher Name: Springer, Dordrecht
Print ISBN: 978-94-010-8815-2
Online ISBN: 978-94-009-5237-9
eBook Packages: Springer Book Archive