Charging dynamics of the electric double layer in porous media

Hidetsugu Sakaguchi, Reisei Baba

    Research output: Contribution to journalArticle

    20 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

    All Science Journal Classification (ASJC) codes

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

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