title: Polarizable Poisson-Boltzmann equation: the study of polarizability effects on the structure of a double layer.
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.
authors.affiliation: Institute of Physics, The Federal University of Rio Grande do Sul, P.O. Box 15051, 91501-970 Porto Alegre, RS, Brazil. dfrydel@gmail.com
authors.forename: Derek
authors.initials: D
authors.lastname: Frydel