The interfacial concentration
(or simply
) of a species
B is the concentration of that species at the boundary of the
electrical double-layer facing the solution, i.e. just outside the region where the departures from the electroneutrality
of the solution are significant. This concept is mainly used in the usual case where
the thickness of the electric double layer is very small as compared to that of the
diffusion layer. It is often calculated from theory or derived from measurements of the
limiting current.
Source:
PAC, 1981, 53, 1827
(Nomenclature for transport phenomena in electrolytic systems)
on page 1837
See also:
PAC, 1980, 52, 233
(Electrode reaction orders, transfer coefficients and rate constants. Amplification
of definitions and recommendations for publication of parameters)
on page 236
