Dependence of the Helmholtz layer capacitance on interfacial charge density at polarisable liquid|liquid interfaces
The physical structure of a polarisable interface between two immiscible electrolyte solutions (ITIES) is modelled using an extended Gouy–Chapman–Stern framework that incorporates asymmetric ion charges. The interface is treated as three capacitors in series: two Poisson–Boltzmann diffuse layers on each side of the aqu...