Hydrophobic Ice Confined between Graphene and MoS2

Pantelis Bampoulis, V.J. Teernstra, Detlef Lohse, Henricus J.W. Zandvliet, Bene Poelsema

Research output: Contribution to journalArticleAcademicpeer-review

30 Citations (Scopus)

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.
Original languageEnglish
Pages (from-to)27079-27084
JournalJournal of physical chemistry C
Volume120
Issue number47
DOIs
Publication statusPublished - 2016

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Graphite
Ice
Graphene
graphene
ice
Water
water
Crystalline materials
molybdenum disulfides
Dangling bonds
Geometry
Biological systems
geometry
Molybdenum
Condensation
Atomic force microscopy
condensation
atomic force microscopy
expansion

Keywords

  • IR-103405
  • METIS-320125

Cite this

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title = "Hydrophobic Ice Confined between Graphene and MoS2",
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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author = "Pantelis Bampoulis and V.J. Teernstra and Detlef Lohse and Zandvliet, {Henricus J.W.} and Bene Poelsema",
year = "2016",
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language = "English",
volume = "120",
pages = "27079--27084",
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publisher = "American Chemical Society",
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Hydrophobic Ice Confined between Graphene and MoS2. / Bampoulis, Pantelis; Teernstra, V.J.; Lohse, Detlef; Zandvliet, Henricus J.W.; Poelsema, Bene.

In: Journal of physical chemistry C, Vol. 120, No. 47, 2016, p. 27079-27084.

Research output: Contribution to journalArticleAcademicpeer-review

TY - JOUR

T1 - Hydrophobic Ice Confined between Graphene and MoS2

AU - Bampoulis, Pantelis

AU - Teernstra, V.J.

AU - Lohse, Detlef

AU - Zandvliet, Henricus J.W.

AU - Poelsema, Bene

PY - 2016

Y1 - 2016

N2 - 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.

AB - 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.

KW - IR-103405

KW - METIS-320125

U2 - 10.1021/acs.jpcc.6b09812

DO - 10.1021/acs.jpcc.6b09812

M3 - Article

VL - 120

SP - 27079

EP - 27084

JO - Journal of physical chemistry C

JF - Journal of physical chemistry C

SN - 1932-7447

IS - 47

ER -