Electroosmosis as a probe for electrostatic correlations

Soft Matter 16 (47), 10688-10696 (2020) 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...

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Bibliographic Details
Main Authors:	Palaia, Ivan, Telles, Igor M, Santos, Alexandre P. dos, Trizac, Emmanuel
Format:	Journal Article
Language:	English
Published:	23-10-2020
Subjects:	Physics - Fluid Dynamics Physics - Soft Condensed Matter
Online Access:	Get full text
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Summary:	Soft Matter 16 (47), 10688-10696 (2020) 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.
DOI:	10.48550/arxiv.2010.12654