Author/Authors :
Pereira، نويسنده , , C.M. and Schmickler، نويسنده , , W. and Silva، نويسنده , , A.F. and Sousa، نويسنده , , M.J.، نويسنده ,
Abstract :
The differential capacity of a large number of liquid-liquid interfaces has been determined by impedance spectroscopy. Even in the absence of ion pairing, the interfacial capacity was always larger than predicted by Gouy-Chapman theory. These findings are explained within a simple model, in which an extended mixed-boundary layer exists at the interface, whose thickness extends over several solvent diameters.