Paper Title:
The Effect of Magnetic Field on the Hydration of Nanoscopic Hydrophobic N-Alkane Plates
  Abstract

The effect of an external magnetic field on the hydration behavior of nanoscopic n-octane plates has been extensively investigated using molecular dynamics simulation in an isothermal-isobaric ensemble. The solute plates with different intermolecular spacing have also been considered to examine the effect of the topology of hydrophobic plates on the adsorption behavior of confined water in the presence of an external magnetic field with an intensity ranging from 0.1T to 1 T. The results demonstrate that magnetic exposure decreases the density of water for the plates with intermolecular spacing of a0 = 4 and 5 Å. This suggests that the free energy barrier for evaporation can be lowered by the applied field, and the hydrophobic solutes consisting of condensed n-octane molecules are apt to aggregate in the aqueous solution. In contrast, the magnetic field improves the dissolution or wetting of solutes comprised of loosely packed n-octane plates of a0=7Å. A magnetic-field-induced adsorption-to-desorption translation, which is in agreement with the experimental results provided by Ozeki, has also been observed for the plates with intermolecular spacing of a0 = 6 Å.

  Info
Periodical
Advanced Materials Research (Volumes 228-229)
Edited by
Quanjie Gao
Pages
1007-1011
DOI
10.4028/www.scientific.net/AMR.228-229.1007
Citation
W. W. Zhang, L. Q. Li, G. Y. Zhang, H. J. Dong, "The Effect of Magnetic Field on the Hydration of Nanoscopic Hydrophobic N-Alkane Plates", Advanced Materials Research, Vols. 228-229, pp. 1007-1011, 2011
Online since
April 2011
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