Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Friction of Water on Graphene and Hexagonal Boron Nitride from ab initio
  Methods: Very Different Slippage Despite Very Similar Interface Structures   Friction is one of the main sources of dissipation at liquid water/solid
interfaces. Despite recent progress, a detailed understanding of water/solid
friction in connection with the structure and energetics of the solid surface
is lacking. Here we show for the first time that \textit{ab initio} molecular
dynamics can be used to unravel the connection between the structure of
nanoscale water and friction for liquid water in contact with graphene and with
hexagonal boron nitride. We find that whilst the interface presents a very
similar structure between the two sheets, the friction coefficient on boron
nitride is $\approx 3$ times larger than that on graphene. This comes about
because of the greater corrugation of the energy landscape on boron nitride
arising from specific electronic structure effects. We discuss how a subtle
dependence of the friction on the atomistic details of a surface, that is not
related to its wetting properties, may have a significant impact on the
transport of water at the nanoscale, with implications for the development of
membranes for desalination and for osmotic power harvesting.

21
The categories of this paper are: adap-org
10
The categories of this paper are: q-bio
24
The categories of this paper are: dg-ga
19
The categories of this paper are: eess
29
The categories of this paper are: funct-an
28
The categories of this paper are: alg-geom
13
The categories of this paper are: quant-ph
30
The categories of this paper are: q-alg
25
The categories of this paper are: patt-sol
17
The categories of this paper are: q-fin
33
The categories of this paper are: plasm-ph
1
The categories of this paper are: cs
7
The categories of this paper are: hep-th
12
The categories of this paper are: nucl-th
31
The categories of this paper are: ao-sci
9
The categories of this paper are: nlin