Simulations of surface capacitance effects on potentiostat response following disruption of passivity

摘要

Following depassivation of potentiostatically controlled metals, complex current transients arise because of the current distribution and the capacitance of the surrounding passive metal/solution interface. A computer simulation of the cross-section has been developed. Examples following an instantaneous scratch are given for changes in the placement of the reference electrode and changes in the area of the passive surface.