Freezing transitions in colloidal nanoparticles: Interplay of dispersive and electrostatic interactions in confined two-dimensional systems
Year: 2025
Type: article
Abstract: We have used the classical density functional theory (DFT) of freezing to study the phase behavior of a two-dimensional system of colloidal nanoparticles interacting via a combination of hard-core electrostatic and Van der Walls forces. Pair-correlation functions, used as the lowest-order structural input in DFT, were calculated using Percus–Yevick integral equation theory. By tuning the relative strength of dispersion and electrostatic interactions through a mixing parameter, we systematically investigate the effects on the liquid–solid phase diagram . The results emphasize the importance of long-range dispersive forces that, in combination with electrostatic interactions, enable the formation of stable triangular solid phases.
Source: Fluid Phase Equilibria
Authors: Moushila Bayen, Anupam Kumar, Pankaj Mishra
Language: English
Subfield: Atmospheric Science
Field: Earth and Planetary Sciences
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $3,630
OpenAlex ID: W4409785156