Adsorption and desorption of N2 on Ni(110): Entropy versus energy

Kreuzer, H.J.; Payne, S.H.; Grunze, M.; Wöll, Ch.

doi:10.1524/zpch.1997.202.Part_1_2.273

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Adsorption and desorption of N2 on Ni(110): Entropy versus energy

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Grunze, M.
Cellular Biophysics, Max Planck Institute for Medical Research, Max Planck Society;

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Citation

Kreuzer, H., Payne, S., Grunze, M., & Wöll, C. (1997). Adsorption and desorption of N2 on Ni(110): Entropy versus energy. Zeitschrift für Physikalische Chemie, 202(1), 273-296. doi:10.1524/zpch.1997.202.Part_1_2.273.

Cite as: https://hdl.handle.net/21.11116/0000-0001-B9EF-2

Abstract

Experimental data on N2 on Ni(110), taken some 16 years ago, are re-analyzed in view of new results on the external vibrations of N2 on Ni(110) obtained by inelastic helium scattering. On the basis of a three-state lattice gas model we can explain in a self-consistent manner the equilibrium data for the coverage dependent isosteric heat and entropy, as well as the thermal desorption data. Although thought to be a simple model for weak chemisorption, the N2 on Ni(HO) system exhibits intriguing and complex compensation effects between the energetic and entropie driving forces.