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Dressed counterions: Polyvalent and monovalent ions at charged dielectric interfaces

Kanduc, Matej; Naji, Ali; Forsman, Jan LU and Podgornik, Rudolf (2011) In Physical Review E (Statistical, Nonlinear, and Soft Matter Physics)2001-01-01+01:002016-01-01+01:00 84(1).
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... (More)
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. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Physical Review E (Statistical, Nonlinear, and Soft Matter Physics)2001-01-01+01:002016-01-01+01:00
volume
84
issue
1
publisher
American Physical Society
external identifiers
  • wos:000293395200002
  • scopus:79961122275
ISSN
1539-3755
DOI
10.1103/PhysRevE.84.011502
language
English
LU publication?
yes
id
c271cffc-430f-4298-a0c6-643c2422d247 (old id 2065413)
date added to LUP
2011-08-29 16:55:24
date last changed
2017-10-01 03:17:41
@article{c271cffc-430f-4298-a0c6-643c2422d247,
  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.},
  articleno    = {011502},
  author       = {Kanduc, Matej and Naji, Ali and Forsman, Jan and Podgornik, Rudolf},
  issn         = {1539-3755},
  language     = {eng},
  number       = {1},
  publisher    = {American Physical Society},
  series       = {Physical Review E (Statistical, Nonlinear, and Soft Matter Physics)2001-01-01+01:002016-01-01+01:00},
  title        = {Dressed counterions: Polyvalent and monovalent ions at charged dielectric interfaces},
  url          = {http://dx.doi.org/10.1103/PhysRevE.84.011502},
  volume       = {84},
  year         = {2011},
}