Dipolar Poisson-Boltzmann equation: ions and dipoles close to charge interfaces.
We present an extension to the Poisson-Boltzmann model where the dipolar features of solvent molecules are taken explicitly into account. The formulation is derived at mean-field level and can be extended to any order in a systematic expansion. It is applied to a two-plate system with oppositely charged surfaces. The ion distribution and profiles in the dipolar order parameter are calculated and can result in a large correction to the interplate pressure.
Abrashkin
Ariel
A
School of Physics and Astronomy, Raymond and Beverly Sackler Faculty of Exact Sciences, Tel Aviv University, Ramat Aviv, Tel Aviv 69978, Israel.
Andelman
David
D
Orland
Henri
H
D007477:Ions / Q000378:metabolism*; D007700:Kinetics; D008962:Models, Theoretical; D016012:Poisson Distribution; D012997:Solvents; D055672:Static Electricity
D007477:Ions; D012997:Solvents