Electrified Immiscible Liquid Boundaries: Conventional and Microscopic Interfaces

摘要

Transport studies on interfaces between immiscible phases bridge the field ofheterogeneous electrode electrochemistry and that of homogeneous solution chemistry. Early work on the liquid/liquid boundary was concerned with large area (an order of a square centimeter) interfaces. Recent studies investigate phenomena on interfaces rendered in pores, capillaries, and small holes. The behavior of such interfaces in the presence of dodecyl sulfate, forming micelles, is investigated. Voltammetry and amperometry on these small interfaces reveal that the accompanying voltammetric characteristics are similar to those of metal ultramicroelectrodes. Potentiometric studies of dodecyl sulfate on water/nitrobenzene and on aqueous polymer immiscible interfaces allow the measurement of critical micelle concentration. Ion transport, Immiscible solutions, Micelles, Electrochemistry potentiometry, Voltammetry, Microdomains, Impedance.