Solvophilic and solvophobic surfaces and non-Coulombic surface interactions in charge regulating electric double layers

The properties of electric double layers are governed by the interface between the substrate and the adjacent electrolyte solution. This interface is involved in chemical, Coulombic, and non-Coulombic (e.g., van der Waals or Lennard-Jones) interactions with all components of the fluid phase. We pres...

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Bibliographic Details
Published in:The Journal of chemical physics 2018-01, Vol.148 (4), p.044702-044702
Main Authors: Vangara, R., van Swol, F., Petsev, D. N.
Format: Article
Language:English
Subjects:
Organic chemistry
Physics
Substrates
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Summary:The properties of electric double layers are governed by the interface between the substrate and the adjacent electrolyte solution. This interface is involved in chemical, Coulombic, and non-Coulombic (e.g., van der Waals or Lennard-Jones) interactions with all components of the fluid phase. We present a detailed study of these interactions using a classical density functional approach. A particular focus is placed on the non-Coulombic interactions and their effect on the surface chemistry and charge regulation. The solution structure near the charged interface is also analyzed and used to offer a thorough interpretation of established concepts such as the Stern and diffuse ionic layers.
ISSN:0021-9606
1089-7690
DOI:10.1063/1.5012090