Please use this identifier to cite or link to this item: http://hdl.handle.net/2445/49069
Title: Effective Electrodiffusion equation for non uniform nanochannels
Author: Marini-Bettolo-Marconi, Umberto
Melchionna, Simonne
Pagonabarraga Mora, Ignacio
Keywords: Química física
Electroquímica
Camps elèctrics
Mecànica estadística
Difusió
Nanociència
Equacions
Polarització (Electricitat)
Electròlits
Physical and theoretical chemistry
Electrochemistry
Electric fields
Statistical mechanics
Diffusion
Nanoscience
Equations
Polarization (Electricity)
Electrolytes
Issue Date: 2013
Publisher: American Institute of Physics
Abstract: We derive a one dimensional formulation of the Planck-Nernst-Poisson equation to describe the dynamics of of a symmetric binary electrolyte in channels whose section is of nanometric section and varies along the axial direction. The approach is in the spirit of the Fick-Jacobs di fusion equation and leads to a system of coupled equations for the partial densities which depends on the charge sitting at the walls in a non trivial fashion. We consider two kinds of non uniformities, those due to the spatial variation of charge distribution and those due to the shape variation of the pore and report one and three-dimensional solutions of the electrokinetic equations.
Note: Reproducció del document publicat a: http://dx.doi.org/10.1063/1.4811516
It is part of: Journal of Chemical Physics, 2013, vol. 138, num. 24, p. 244107-1-244107-9
Related resource: http://dx.doi.org/10.1063/1.4811516
URI: http://hdl.handle.net/2445/49069
ISSN: 0021-9606
Appears in Collections:Articles publicats en revistes (Física de la Matèria Condensada)

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