Electrokinetic properties across

The electrical double layer (edl) at the oil-water interface is a heterogeneous interfacial region that separates two bulk phases of polarized media and maintains a spatial separation of charges. EDLs at such interfaces determine the kinetics of charge transfer across phase boundaries, stability and electrokinetic properties of lyophobic colloids, mechanisms of phase transfer or interfacial catalysis, charge separation in natural and artificial photosynthesis, and heterogeneous enzymatic catalysis [1-5]. 

Electrokinetic properties are associated with phases in contact with each other and are of particular significance for colloidal systems, although by no means restricted to these. Imposition of e.m.f. s across such interfaces causes... 

Depending on the properties of these films, which can be described by insulating or semiconductor models, ionic migration assisted by the high electrical fields set up across the surface layers and ionic diffusion are possible during the processes of formation—dissolution of the films. The study of the electrokinetics of most of these systems is at present the subject of considerable research. 

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