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 alpha 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.
Charging dynamics of the electric double layer in porous media. Publishing Authors By Initials
Charging dynamics of the electric double layer in porous media. Journal Published:
PUBLICATION TYPE: Journal Article
Journal: Physical review. E, Statistical, nonlinear, and so
VOLUME: 76
Page Numbers: 011501
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ISSN: 1539-3755
DAY: 2
MONTH: 07
YEAR: 2007
Charging dynamics of the electric double layer in porous media. Information
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LANGUAGE: eng
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Grant and Affiliation Information for Charging dynamics of the electric double layer in porous media.
AFFILIATION: Department of Applied Science for Electronics and Materials, Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, Kasuga, Fukuoka 816-8580, Japan.
Country: United States
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MEDLINETA: Phys Rev E Stat Nonlin Soft Ma
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