4.8 Article

Hydrogen bonding at the water/quasi-freestanding graphene interface

Journal

CARBON
Volume 49, Issue 15, Pages 5180-5184

Publisher

PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.carbon.2011.07.034

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Funding

  1. Ministerio de Educacion y Ciencia (MEC)

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Vibrational spectroscopy has been used to study the interaction of water with quasi-freestanding graphene grown on Pt(111). A sharp O-H (O-D) vibrational band centered at 457 (337) meV is a direct evidence of the existence of non-H- (non-D-) bonded water molecules at the water/graphene interface. This finding is expected to play a significant role in understanding the behavior of water at hydrophobic surfaces. Such finding is in agreement with results reported for water adsorbed on other hydrophobic surfaces and with the behavior of water confined in carbon nanotubes and between graphene sheets. (C) 2011 Elsevier Ltd. All rights reserved.

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