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Journal Articles Soft Matter Year : 2021

Electroosmosis as a probe for electrostatic correlations

Ivan Palaia
  • Function : Author
Igor M. Telles
  • Function : Author
Alexandre P. Dos Santos
  • Function : Author

Abstract

We study the role of ionic correlations on the electroosmotic flow in planar double-slit channels, without salt. We propose an analytical theory, based on recent advances in the understanding of correlated systems. We compare the theory with mean-field results and validate it by means of dissipative particle dynamics simulations. Interestingly, for some surface separations, correlated systems exhibit a larger flow than predicted by mean-field. We conclude that the electroosmotic properties of a charged system can be used, in general, to infer and weight the importance of electrostatic correlations therein.

Dates and versions

hal-03223905 , version 1 (11-05-2021)

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Ivan Palaia, Igor M. Telles, Alexandre P. Dos Santos, Emmanuel Trizac. Electroosmosis as a probe for electrostatic correlations. Soft Matter, 2021, 16 (47), pp.10688-10696. ⟨10.1039/d0sm01523g⟩. ⟨hal-03223905⟩
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