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  Hydrophobic ice confined between graphene and MoS2.

Bampoulis, P., Teernstra, V. J., Lohse, D., Zandvliet, H. J. W., & Poelsema, B. (2016). Hydrophobic ice confined between graphene and MoS2. Journal of Physical Chemistry C, 120(47), 27079-27084. doi:10.1021/acs.jpcc.6b09812.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-002C-2DB7-2 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-002D-0B50-C
Genre: Journal Article

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Bampoulis, P., Author
Teernstra, V. J., Author
Lohse, Detlef1, Author              
Zandvliet, H. J. W., Author
Poelsema, B., Author
Affiliations:
1Max Planck Institute for Dynamics and Self-Organization, Max Planck Society, ou_2063285              

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 Abstract: The structure and nature of water confined between hydrophobic molybdenum disulfide (MoS2) and graphene (Gr) are investigated at room temperature by means of atomic force microscopy. We find the formation of two-dimensional (2D) crystalline ice layers. In contrast to the hexagonal ice "bilayers" of bulk ice, these 2D crystalline ice phases consist of two planar hexagonal layers. Additional water condensation leads to either lateral expansion of the ice layers or to the formation of three-dimensional water droplets on top or at the edges of the two-layer ice, indicating that water does not wet these planar ice films. The results presented here are in line with a recent theory suggesting that water confined between hydrophobic walls forms 2D crystalline two-layer ice with a nontetrahedral geometry and intrahydrogen bonding. The lack of dangling bonds on either surface of the ice film gives rise to a hydrophobic character. The unusual geometry of these ice films is of great potential importance in biological systems with water in direct contact with hydrophobic surfaces.

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Language(s): eng - English
 Dates: 2016-11-042016-12-01
 Publication Status: Published in print
 Pages: -
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 Rev. Method: Peer
 Identifiers: DOI: 10.1021/acs.jpcc.6b09812
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Title: Journal of Physical Chemistry C
Source Genre: Journal
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Pages: - Volume / Issue: 120 (47) Sequence Number: - Start / End Page: 27079 - 27084 Identifier: -