Charging dynamics of the electric double layer in porous media

Hidetsugu Sakaguchi, Reisei Baba

    Research output: Contribution to journalArticle

    19 Citations (Scopus)

    Abstract

    Electric double layer in porous media is studied with direct numerical simulations of the Nernst-Planck-Poisson equation. The time evolution of the charging process of the electric double-layer along a straight pore is first studied, and confirm that the time evolution obeys a power law of the exponent 1/2. We find that the diffusion constant increases effectively by the effect of the width of the pore. Next it is found that the time evolution of the charging process in fractal porous media obeys a power law, and the exponent α is related to the fracton dimension. Finally, we propose a coupled map lattice model for the creation of pore structures by gas activation processes, and perform numerical simulation of the charging dynamics of the electric double layer.

    Original languageEnglish
    Article number011501
    JournalPhysical Review E - Statistical, Nonlinear, and Soft Matter Physics
    Volume76
    Issue number1
    DOIs
    Publication statusPublished - Jul 2 2007

    Fingerprint

    Porous Media
    charging
    porosity
    Power Law
    Exponent
    exponents
    Coupled Map Lattices
    Poisson equation
    Lattice Model
    Poisson's equation
    direct numerical simulation
    Straight
    Activation
    Fractal
    fractals
    activation
    Numerical Simulation
    gases
    simulation
    Direct numerical Simulation

    All Science Journal Classification (ASJC) codes

    • Statistical and Nonlinear Physics
    • Statistics and Probability
    • Condensed Matter Physics

    Cite this

    Charging dynamics of the electric double layer in porous media. / Sakaguchi, Hidetsugu; Baba, Reisei.

    In: Physical Review E - Statistical, Nonlinear, and Soft Matter Physics, Vol. 76, No. 1, 011501, 02.07.2007.

    Research output: Contribution to journalArticle

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