Journal
CHEMICAL PHYSICS LETTERS
Volume 759, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.cplett.2020.137907
Keywords
The interaction potential; Curvatures; The micro/nano surfaces; van der Waals potential; Lennard-Jones approximation
Funding
- Natural Science Foundation of China [11902151]
- Natural Science Foundation of Jiangsu Province [BK20180411]
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The van der Waals potential between two arbitrary surfaces regarding to the curvature effect is investigated based on surface theory. It is expressed as a function of local curvatures based on the negative power function (u (r) = Cr-n) Numerical experiments are designed to test the accuracy of curvature-based potential. Corresponding to certain problems, parametric effect for three cases considering the L-J approximation model is discussed, i.e. cylinder-cylinder, ellipsoid-flat surface and spherical particle-sinusoidal surface. The work reveals the domain effect of curvatures for the vdW potential and provide a convenient way to analyze geometrical effect for complex surface in biological and chemical systems.
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