Review article

Electrostatic Potentials at Solid/Liquid Interfaces

Nikola Kallay ; Laboratory of Physical Chemistry, Department of Chemistry, Faculty of Science, University of Zagreb, Horvatovac 102a, 10000 Zagreb, Croatia
Tajana Preočanin ; Laboratory of Physical Chemistry, Department of Chemistry, Faculty of Science, University of Zagreb, Horvatovac 102a, 10000 Zagreb, Croatia
Davor Kovačević ; Laboratory of Physical Chemistry, Department of Chemistry, Faculty of Science, University of Zagreb, Horvatovac 102a, 10000 Zagreb, Croatia
Johannes Lützenkirchen ; Institut für Nukleare Entsorgung, Karlsruher Institut für Technologie, Postfach 3640, 76021 Karlsruhe, Germany
Emil Chibowski ; Physical Chemistry Department, Faculty of Chemistry, Maria Curie-Skłodowska University, pl. Marii Curie-Skłodowskiej 3, 20.031 Lublin, Poland

Abstract

This review deals with electrostatic potentials within solid/electrolyte interfaces. The electrostatic
potentials of several planes are defined and discussed: the inner surface potential affecting the state of
charged surface species due to interactions with potential determining ions (Ψ0), the potential affecting the
state of associated counterions (Ψβ), the potential at the onset of diffuse layer (Ψd) and the electrokinetic
potential (ζ). The relevance of zero values of these potentials is also discussed and the corresponding
points of zero charge are defined. Experimental methods for the measurement of the interfacial potentials
are presented. The relations between potentials and surface charges are given on the basis of the Surface
Complexation model. Some experimental findings are provided.

Keywords

electrostatic potential; solid/electrolyte interface; Surface Complexation model; surface charge

Hrčak ID:

62215

URI

https://hrcak.srce.hr/62215

Publication date:

5.10.2010.

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