Calculated Binding Properties of Hydrogen on Nickel Surfaces
Author:
- 7 June 1982
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 48 (23) , 1620-1624
Abstract
An extremely simple calculational method based on the effective medium theory is developed to describe chemisorption systems. It is tested for hydrogen chemisorbed on Ni(100) and (111). Good agreement with experiment is obtained for all quantities calculated: chemisorption energy, equilibrium position, vibrational frequency, and the energy of the hydrogen-induced level. The results indicate that hydrogen may exist under the first Ni layer of Ni(111), but that the binding here is weaker than outside the surface.Keywords
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