Dependence of Water Dynamics on Molecular Adsorbates near Hydrophobic Surfaces: First-Principles Molecular Dynamics Study
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SCOPUS
- Title
- Dependence of Water Dynamics on Molecular Adsorbates near Hydrophobic Surfaces: First-Principles Molecular Dynamics Study
- Authors
- LEE, DONGHWA; Schwegler, Eric; Kanai, Yosuke
- Date Issued
- 2014-04-24
- Publisher
- AMER CHEMICAL SOC
- Abstract
- First-principles molecular dynamics simulations are used to gain an atomistic-level insight into how the molecular behavior of interfacial water is influenced by specific surface adsorbates. Although the overall hydrophobic versus hydrophilic character of a given surface is widely recognized to be important in determining the behavior of interfacial water molecules, we show that subtle molecular details may also play a role in determining the dynamical behavior of water. By comparing water diffusivity at three different nonpolar surfaces, we find that specific surface features can lead to a suppression of hydrogen bond network ring structures by enhancing hexagonal spatial distributions of water molecules near the surface. Such a distinct molecule-dependent behavior of the interfacial water was found to persist well into the liquid, while most structural properties are noticeably influenced in only the first water layer.
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/96444
- DOI
- 10.1021/jp502850k
- ISSN
- 1932-7447
- Article Type
- Article
- Citation
- Journal of Physical Chemistry C, vol. 118, no. 16, page. 8508 - 8513, 2014-04-24
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