Systems with Electrocatalytic Surface Reactions:
Effect of the Coverage Dependence of the Adsorption
and Desorption Rates

V. V. Nechiporuk, M. M. Tkachuk, and I. V. Berladinz

Chernovtsy National University, ul. Kotsyubinskogo 2, Chernovtsy, 274012 Ukraine

Received February 17, 2005

Abstract—Stability of steady states and possibilities for the formation of multiplicity and oscillations under
potentiostatic conditions are studied for various deviations from the Langmuir adsorption kinetics in systems
containing one type of substance reacting electrochemically only via its adsorptive state. If the adsorbate–adsor-
bate interaction between molecules of substance X along the electrode surface is repulsive or does not occur, a
stable steady state exists. The multiplicity of steady states and the periodical solutions emerge only if this inter-
action is attractive.


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