The many origins of charge inversion in electrolyte solutions: effects of discrete interfacial charges

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dc.creatorFaraudo, J.
dc.creatorTravesset, A.
dc.date2007-01-20
dc.date.accessioned2026-07-07T07:42:03Z
dc.date.available2026-07-07T07:42:03Z
dc.descriptionWe show that charge inversion, i.e. interfacial charges attracting counterions in excess of their own nominal charge, is a general effect that takes place in most charged systems next to aqueous solutions with multivalent ions and identify three different electrostatic origins for this effect 1) counterion-counterion correlations, 2) correlations between counterions and interfacial charges and 3) complexation. We briefly describe the first two regimes and provide a detailed characterization of the complexation regime from united atom molecular dynamics simulation of a phospholipid domain in contact with an aqueous solution. We examine the expected conditions where each regime should apply and describe a representative experimental example to illustrate each case. We point out that our results provide a characterization of ionic distributions irrespectively of whether charge inversion takes place and show that processes such as proton release and transfer are also linked to ionic correlations. We conclude with a discussion of further experimental and theoretical implications.
dc.description22 pages, 7 figures
dc.identifierhttps://arxiv.org/abs/cond-mat/0701500
dc.identifierhttp://arxiv.org/abs/cond-mat/0701500
dc.identifierJ. Phys. Chem. C. 2007; 11; 987-994
dc.identifierdoi:10.1021/jp0656983
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/122345
dc.subjectSoft Condensed Matter
dc.subjectStatistical Mechanics
dc.titleThe many origins of charge inversion in electrolyte solutions: effects of discrete interfacial charges
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