RT Journal Article
T1 Atomic-Scale Sliding Friction on Graphene in Water
A1 Vilhena, J.G.
A1 Pimentel, Carlos
A1 Pedraz, Patricia
A1 Luo, Feng
A1 Serena, Pedro A.
A1 Pina Martínez, Carlos Manuel
A1 Gnecco, Enrico
A1 Pérez, Rubén
AB The sliding of a sharp nanotip on graphene completely immersed in water is investigated by molecular dynamics (MD) and atomic force microscopy. MD simulations predict that the atomicscale stick−slip is almost identical to that found in ultrahigh vacuum. Furthermore, they show that water plays a purely stochastic role in sliding (solid-to-solid) friction. These observations are substantiated by friction measurements on graphene grown on Cu and Ni, where, oppositely of the operation in air, lattice resolution is readily achieved. Our results promote friction force microscopy in water as a robust alternative to ultra-high-vacuum measurements.
PB American Chemical Society
SN 1936-0851, ESSN: 1936-086X
YR 2016
FD 2016
LK https://hdl.handle.net/20.500.14352/23530
UL https://hdl.handle.net/20.500.14352/23530
LA eng
NO Ministerio de Economía y Competitividad (MINECO)
NO Comunidad de Madrid
DS Docta Complutense
RD 3 may 2024