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Heterogeneous Condensation of Water on the Mica (001) Surface: A Molecular Dynamics Simulation Work
journal contribution
posted on 2017-03-14, 00:00 authored by Xinwen Ou, Xiaofeng Wang, Zhang Lin, Jingyuan LiWater vapor condensation
on the solid surface is ubiquitous in
nature and has considerable importance in industrial applications.
In this work, molecular dynamics simulation is used to investigate
the kinetic process of water condensation on the mica surface as well
as the properties of adsorbed water. The water molecules tend to spread
on the mica surface and develop a water film comprised of two distinct
adlayers. The growth of the first water adlayer is inhomogeneous due
to the discrepancy of adsorption tendency to different surface sites.
Interestingly, the second water adlayer begins to emerge far before
the surface sites of mica are completely occupied. Our observations
resemble the condensation process described by the Stranski–Krastanov
growth model. These findings exhibit the dependence of water condensation
on the surface properties.