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Nano Research & Applications
ISSN 2471-9838
September 11-12, 2017 Amsterdam, Netherlands
20
th
International Conference on
Advanced Nanotechnology
Advanced Nano 2017
Wetting of water on graphene
I
n contemporary literature, the wetting properties
of graphene have proven to be controversial and
difficult to assess; especially, whether the presence
of a thin molecular layer such as graphene influences
the adhesion of a solid phase. In this work, we directly
measure the water adsorption in graphene nano-
powder flakes of different thicknesses in a novel
experimental approach, which shows that the thinnest
of graphene flakes do not adsorb water. Thicker flakes
of graphene nano-powder, on the other hand, do adsorb
water. Calculation of the van der Waals interactions
in this system confirms that the adhesive interactions
between graphene and water are very weak, which
makes graphene super hydrophobic. Subsequent
‘liquid marble’ tests with graphene nano-powder flakes
establish this super hydrophobicity. Our work affirms
the much debated ‘wetting transparency’ property of
graphene, implying that a single graphene layer on top
of a substrate does not affect the adhesion between a
wetting phase and the substrate.
Biography
Daniel Bonn completed his PhD in University of Amsterdam, Dept. of Chemistry in
1993 and MSc at University ofAmsterdam, Dept. of Chemistry, and MSc in Physical
Chemistry in 1990. Since 2003, he has worked as a Professor of Physics (part-
time) at the van der Waals-Zeeman Institute, University of Amsterdam. His current
research interests include “Complex fluids, rheology, glasses, surface phase
transitions, instabilities, and turbulence”. He has over 90 publications in refereed
journals.
d.bonn@uva.nlDaniel Bonn
University of Amsterdam, Netherlands
Daniel Bonn, Nano Res Appl 2017, 3:3
DOI: 10.21767/2471-9838-C1-001