Dressed counterions: Polyvalent and monovalent ions at charged dielectric interfaces

Matej Kanduc, Ali Naji, Jan Forsman, Rudolf Podgornik

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37 Citations (SciVal)

Abstract

We investigate the ion distribution and overcharging at charged interfaces with dielectric inhomogeneities in the presence of asymmetric electrolytes containing polyvalent and monovalent ions. We formulate an effective "dressed counterion" approach by integrating out the monovalent salt degrees of freedom and show that it agrees with results of explicit Monte Carlo simulations. We then apply the dressed counterion approach within the framework of the generalized strong-coupling theory, valid for polyvalent ions at low concentrations, which enables an analytical description for salt effects as well as dielectric inhomogeneities in the limit of strong Coulomb interactions. Limitations and applicability of this theory are examined by comparing the results with simulations.
Original languageEnglish
Article number011502
JournalPhysical Review E (Statistical, Nonlinear, and Soft Matter Physics)
Volume84
Issue number1
DOIs
Publication statusPublished - 2011

Bibliographical note

The information about affiliations in this record was updated in December 2015.
The record was previously connected to the following departments: Theoretical Chemistry (S) (011001039)

Subject classification (UKÄ)

  • Theoretical Chemistry

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