Gas-liquid nucleation in two-dimensional fluids

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

26 Scopus Citations
View graph of relations

Author(s)

Detail(s)

Original languageEnglish
Pages (from-to)2699-2704
Journal / PublicationJournal of Chemical Physics
Volume104
Issue number7
Publication statusPublished - 1996
Externally publishedYes

Abstract

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.

Bibliographic Note

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].

Citation Format(s)

Gas-liquid nucleation in two-dimensional fluids. / Zeng, X. C.
In: Journal of Chemical Physics, Vol. 104, No. 7, 1996, p. 2699-2704.

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review