TY - JOUR
T1 - Gas-liquid nucleation in two-dimensional fluids
AU - Zeng, X. C.
N1 - Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].
PY - 1996
Y1 - 1996
N2 - A nonclassical theory of nucleation, based on the density-functional (DF) approach, is developed for the gas-liquid transitions of two-dimensional (2D) Lennard-Jones (LJ) fluids. The methods of Weeks-Chandler-Andersen perturbation theory are used to approximate the LJ potential with a temperature-dependent hard-disk diameter plus an attractive tail. The resulting free energy functional is then used to calculate the free energy barrier to nucleation. We find that the curvature of the 2D nucleus is not important to the rate of nucleation (in contrast to the 3D counterpart). The effect of curvature is readily inferred from the ratio of nucleation rate from classical Becker-Döring theory to that from DF theory. Our calculation suggests that classical nucleation theory actually works reasonably well for 2D LJ fluids in predicting the temperature-dependence of the nucleation rate (whereas for 3D LJ fluids it fails badly). © 1996 American Institute of Physics.
AB - A nonclassical theory of nucleation, based on the density-functional (DF) approach, is developed for the gas-liquid transitions of two-dimensional (2D) Lennard-Jones (LJ) fluids. The methods of Weeks-Chandler-Andersen perturbation theory are used to approximate the LJ potential with a temperature-dependent hard-disk diameter plus an attractive tail. The resulting free energy functional is then used to calculate the free energy barrier to nucleation. We find that the curvature of the 2D nucleus is not important to the rate of nucleation (in contrast to the 3D counterpart). The effect of curvature is readily inferred from the ratio of nucleation rate from classical Becker-Döring theory to that from DF theory. Our calculation suggests that classical nucleation theory actually works reasonably well for 2D LJ fluids in predicting the temperature-dependence of the nucleation rate (whereas for 3D LJ fluids it fails badly). © 1996 American Institute of Physics.
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U2 - 10.1063/1.470991
DO - 10.1063/1.470991
M3 - RGC 21 - Publication in refereed journal
SN - 0021-9606
VL - 104
SP - 2699
EP - 2704
JO - Journal of Chemical Physics
JF - Journal of Chemical Physics
IS - 7
ER -