Analytical description of the ionic relaxation in the presence of surface adsorption
Giovanni Barbero,
Yagub Aliyev,
Antonio M Scarfone
Abstract:The temporal evolution of the surface electric field in a cell in the presence of ionic adsorption is investigated. The analysis is performed in the framework of the Poisson-Nernst-Planck model, based on the conservation of particles and the equation of Poisson for the actual electric potential across the cell, assuming that only the ions of a given sign are mobile. The adsorption is described using a kinetic equation of Langmuir's type. The simple case of small adsorption is considered, in which the saturatio… Show more
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