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arXiv · 2010.12654

Electroosmosis as a probe for electrostatic correlations

Ivan Palaia·Igor M. Telles·Alexandre P. dos Santos·Emmanuel Trizac
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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.

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Ivan Palaia, Igor M. Telles, Alexandre P. dos Santos, Emmanuel Trizac. 2020-10-23. Electroosmosis as a probe for electrostatic correlations. https://doi.org/10.1039/d0sm01523g

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