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Title

Charge Regulation in the Electrical Double Layer: Ion Adsorption and Surface Interactions
Authors
Trefalt, Gregor
Behrens, Sven Holger
Borkovec, Michal
Published in Langmuir. 2016, vol. 32, no. 2, p. 380-400
Abstract Charge regulation in the electrical double layer has important implications for ion adsorption, interparticle forces, colloidal stability, and deposition phenomena. Although charge regulation generally receives little attention, its consequences can be major, especially when considering interactions between unequally charged surfaces. The present article discusses common approaches to quantify such phenomena, especially within classical Poisson−Boltzmann theory, and pinpoints numerous situations where a consideration of charge regulation is essential. For the interpretation of interaction energy profiles, we advocate the use of the constant regulation approximation, which summarizes the surface properties in terms of two quantities, namely, the diffuse layer potential and the regulation parameter. This description also captures some pronounced regulation effects observed in the presence of multivalent ions.
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Article (Published version) (7.7 MB) - document accessible for UNIGE members only Limited access to UNIGE
Other version: http://pubs.acs.org/doi/10.1021/acs.langmuir.5b03611
Structures
Faculté des sciences / Section de chimie et biochimie / Département de chimie minérale, analytique et appliquée
Research group Groupe Borkovec
Citation
(ISO format) 		TREFALT, Gregor, BEHRENS, Sven Holger, BORKOVEC, Michal. Charge Regulation in the Electrical Double Layer: Ion Adsorption and Surface Interactions. In: Langmuir, 2016, vol. 32, n° 2, p. 380-400. https://archive-ouverte.unige.ch/unige:103028

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Deposited on : 2018-03-20

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