The Electric Double Layer Structure Around Charged Spherical Interfaces

ORAL

Abstract

We derive a formally simple approximate analytical solution to the Poisson-Boltzmann equation for the spherical system via a geometric mapping. Its regime of applicability in the parameter space of the spherical radius and the surface potential is determined, and its superiority over the linearized solution is demonstrated. In addition, the influence of nonuniform surface potential on the electric double layer structure is studied for large spheres in the weak potential limit.

*This work was supported by the National Science Foundation grant DMR-0808812 and by funds from Syracuse University

–

Authors

  • Zhenwei Yao

    • Syracuse University

  • Mark Bowick

    • Syracuse University
    • Department of Physics, Syracuse University, Syracuse, New York, USA

  • Xu Ma

    • Department of Physics, Syracuse University, Syracuse, New York, USA
    • Syracuse University