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Wetting of Argon on CO2

Giampaolo Mistura·Francesco Ancilotto·Lorenzo Bruschi·Flavio Toigo
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Abstract

We have studied the wetting transition of Ar adsorbed on solid CO2 by means of high-precision adsorption isotherms measured with a quartz microbalance. We observe triple-point wetting. At variance with many theoretical studies based on a model adsorption potential, which predict for this system a genuine prewetting transition around 100K we find that a detailed density-functional calculation employing a more realistic adsorption potential leads to triple-point wetting of Ar on CO2, in good agreement with the experiment.

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Giampaolo Mistura, Francesco Ancilotto, Lorenzo Bruschi, Flavio Toigo. 1998-10-01. Wetting of Argon on CO2. https://doi.org/10.1103/physrevlett.82.795

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