From degeneration to damping of electrochemical oscillation induced by temperature controlling of heat-compensation type

Abstract

Instead of the passivation of the electrode surface, another approach leading to the nonsustaining character of electrochemical oscillation induced by temperature control of heat-compensation type is suggested in this paper. As an illustration the thermokinetic behavior of the anodic dissolution of copper in acidic chloride solution influenced by both the chemical reaction–heat conduction coupling and the temperature undulation in the controlling error range has been analyzed quantitatively. It turned out that this kind of temperature fluctuation will lead to limit cycle type degeneration of the sustained electrode chemical oscillation. As a result, two kinds of evolutionary perspectives, both the quasi-periodic oscillation and the damping oscillation, are expected.