Jump to main content
Jump to site search

Issue 1, 2009
Previous Article Next Article

A field theory for ions near charged surfaces valid from weak to strong couplings

Author affiliations

Abstract

A theory is developed to model the behavior of mobile ions around a fixed charged distribution in the presence of dielectric bodies. By treating the short and long-wavelength fluctuations of the electric potential within different approximation schemes, this approach combines the strengths of the mean field approximation and the strong coupling expansion, while retaining the simplicity of the commonly used Poisson-Boltzmann theory. It is capable of accurately describing ion-correlation induced phenomena, such as the attraction between two like charged plates, the repulsion between two oppositely charged plates, and overcharging. The theory is compared with Monte Carlo simulation data for various systems of charged plates with their associated counterions and added electrolyte. Good agreement is found for nearly all conditions examined.

Graphical abstract: A field theory for ions near charged surfaces valid from weak to strong couplings

Back to tab navigation

Publication details

The article was received on 05 Sep 2008, accepted on 14 Oct 2008 and first published on 17 Nov 2008


Article type: Paper
DOI: 10.1039/B815578J
Citation: Soft Matter, 2009,5, 125-133
  •   Request permissions

    A field theory for ions near charged surfaces valid from weak to strong couplings

    M. M. Hatlo and L. Lue, Soft Matter, 2009, 5, 125
    DOI: 10.1039/B815578J

Search articles by author

Spotlight

Advertisements