RT Journal Article
T1 Temperature effects on the static and dynamic properties of liquid water inside nanotubes
A1 Gordillo, M.C.
A1 Martí, J.
K1 Temperature
K1 Nanotubes
AB We report a molecular dynamics simulation study of the behavior of liquid water adsorbed in carbon nanotubes under different thermodynamic conditions. A flexible simple point charged potential has been employed to model internal and intermolecular water interactions. Water-carbon forces are modeled with a Lennard-Jones-type potential. We have studied three types of tubes with effective radii ranging from 4.1 to 6.8 Å and three temperatures, from 298 to 500 K for a fixed density of 1 g/cm3. Structure of each thermodynamic state is analyzed through the characterization of the hydrogen-bond network. Time-dependent properties such as the diffusive behavior and molecular vibrational spectra are also considered. We observe the gradual destruction of the hydrogen-bond network together with faster diffusive regimes as temperature increases. A vibrational mode absent in bulk unconstrained water appears in the power spectra obtained from hydrogen velocity autocorrelation functions for all thermodynamic states. That frequency mode should be attributed to confinement effects.
PB American Physical Society
SN 1539-3755
YR 2001
FD 2001-07
LK http://hdl.handle.net/10433/981
UL http://hdl.handle.net/10433/981
LA en
NO Physical Review E - Statistical, Nonlinear, and Soft Matter Physics, 2001;64(2 I):215041-215046
NO Universidad Pablo de Olavide. Departamento de Sistemas Físicos, Químicos y Naturales
DS RIO
RD May 23, 2026