Behavior of redox systems with electrostatic adsorption on electrodes in the absence of passivation

Abstract

In the work, the effect of electrostatic adsorption on the stability of steady-state and appearance of monotonous instability in electrochemical systems in the absence of passivation is theoretically studied for different process modes (galvanostatic, potentiostatic, and constant potential drop). It is shown that electro-static adsorption may be the cause for appearance of multiple steady states under the galvanostatic mode and mode of constant potential drop. The corresponding diagrams of static bifurcation are constructed in the regions of different system parameters. The system under consideration tends in the potentiostatic mode to a stable steady state.