Quantum Treatment of the Physical Adsorption of Isotopic Species
- 1 August 1962
- journal article
- Published by AIP Publishing in The Journal of Chemical Physics
- Vol. 37 (3), 571-576
- https://doi.org/10.1063/1.1701376
Abstract
The results of isotopic substitution in the adsorption of H2, D2, CH4, and CD4 on a graphitized carbon black observed by Constabaris, Sams, and Halsey are explained in terms of two competing effects: the quantum statistical mass effect on the vibrational energy levels normal to the surface and the quantum mechanical effect of isotopic substitution on the dispersion energy.Keywords
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