Polarizable Poisson-Boltzmann equation: the study of polarizability effects on the structure of a double layer.

  • Derek Frydel
  • Published 2011 in The Journal of chemical physics

Abstract

We incorporate ion polarizabilities into the Poisson-Boltzmann equation by modifying the effective dielectric constant and the Boltzmann distribution of ions. The extent of the polarizability effects is controlled by two parameters, γ(1) and γ(2); γ(1) determines the polarization effects in a dilute system and γ(2) regulates the dependence of the polarizability effects on the concentration of ions. For a polarizable ion in an aqueous solution γ(1) ≈ 0.01 and the polarizability effects are negligible. The conditions where γ(1) and/or γ(2) are large and the polarizability is relevant involve the low dielectric constant media, high surface charge, and/or large ionic concentrations.

DOI: 10.1063/1.3598476

Cite this paper

@article{Frydel2011PolarizablePE, title={Polarizable Poisson-Boltzmann equation: the study of polarizability effects on the structure of a double layer.}, author={Derek Frydel}, journal={The Journal of chemical physics}, year={2011}, volume={134 23}, pages={234704} }