Faculté des sciences

The gas-solid interface The Interaction of Argon, Xenon and Sulfur Hexafluoride with Rhombic Sulfur

Stoeckli, Fritz ; Stoeckli-Evans, Helen

In: Helvetica Chimica Acta, 1975, vol. 58, no. 8, p. 2291 - 2294

Further theoretical calculations have been carried out for the adsorption potentials of Ar on the (011) face of rhombic sulfur, and for Xe and SF6 on the (011) and (111) faces. By using the same sites for the three molecules and pair-potentials of the Lennard-Jones type, specific scaling factors were found. These are constant within 5-10%, for each adsorbate, and therefore the... Plus

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    Summary
    Further theoretical calculations have been carried out for the adsorption potentials of Ar on the (011) face of rhombic sulfur, and for Xe and SF6 on the (011) and (111) faces. By using the same sites for the three molecules and pair-potentials of the Lennard-Jones type, specific scaling factors were found. These are constant within 5-10%, for each adsorbate, and therefore the distribution curves of the adsorption potentials of simple molecules on crystalline sulfur are related in a simple way. The influence of the size of the molecule and the local geometry of the surface is also discussed.