Abstract
Films of poly-N,N′-2,3-dimethylbutane-2,3-diyl-bis(salicylideniminato)nickel are studied by cyclic voltammetry and faradaic impedance methods in acetonitrile solutions containing 0.1 M tetraethylammonium tetrafluoroborate. The resistance to charge transfer and the double-layer capacitance, calculated from the semicircle in the high-frequency spectrum portion, are referred to the film/electrolyte interface. From the low- and mid-frequency impedance spectra portions, the low-frequency capacitance and the effective diffusion coefficient of charge carriers are determined. The assumption about a noticeable film porosity is shored up by direct scanning electron microscopy examination of film surfaces.
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