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arXiv · 1105.5890

Colloids electrophoresis for strong and weak ion diffusivity

Giovanni Giupponi·Ignacio Pagonabarraga
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Abstract

We study the electrophoretic flow of suspensions of charged colloids with a mesoscopic method that allows to model generic experimental conditions. We show that for highly charged colloids their electrophoretic mobility increases significantly and displays a mobility maximum on increasing the colloidal charge for all salt concentrations. The electrophoretic mobility of highly charged colloids is also enhanced significantly when ion advection is dominant, leading to a strong heterogeneity in the local electrophoretic response especially at low salt concentration, when ion diffuse layers overlap.

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Giovanni Giupponi, Ignacio Pagonabarraga. 2011-05-30. Colloids electrophoresis for strong and weak ion diffusivity. https://doi.org/10.1103/physrevlett.106.248304

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