Electroosmosis as a probe for electrostatic correlations

Autor:	Palaia, Ivan, Telles, Igor M., Santos, Alexandre P. dos, Trizac, Emmanuel
Rok vydání:	2020
Předmět:	Condensed Matter - Soft Condensed Matter Physics - Fluid Dynamics
Zdroj:	Soft Matter 16 (47), 10688-10696 (2020)
Druh dokumentu:	Working Paper
DOI:	10.1039/D0SM01523G
Popis:	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. Comment: accepted for publication in Soft Matter
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2010.12654 Zobrazit plný text záznamu View this record from Arxiv