Kinetics of Adsorption of Neutral Molecules
from a Thin Layer on a Rough Electrode

V. V. Pototskaya^a,z, N. E. Evtushenko^b, and O. I. Gichan^c

^a Vernadskii Institute of General and Inorganic Chemistry, National Academy of Sciences of Ukraine,
pr. Akademika Palladina 32-34, Kiev, 03680 Ukraine
^b Institute of Sorption and Endoecology, National Academy of Sciences of Ukraine, Kiev, Ukraine
^c Institute of Surface Chemistry, National Academy of Sciences of Ukraine, Kiev, Ukraine

Received June 23, 2003

Abstract—A theoretical model for the generalized finite adsorption impedance of a rough electrode is offered.
A complex function of the roughness of the electrode surface is introduced and its frequency dependence is
studied. The frequency characteristics of constituents of the adsorption impedance are shown to depend on the
electrode roughness and the diffusion layer thickness. The frequency dependences of the phase angle and
impedance components are found to considerably differ from the Frumkin–Melik-Gaikazyan result for an ideal
smooth electrode.

Key words: impedance, double layer, adsorption, rough electrode, diffusion, function of surface roughness

Pleiades Publishing home page | journal home page | top

If you have any problems with this server, contact webmaster.