抄録
We have investigated into transient changes in s urface morphologies of Ag-Sb electrodeposits caused by instability in electrochemical reactions. Microscope images of the Ag-Sb electrodeposits reveal that the surface morphology comprising Sb-poor and Sb-rich Ag deposits is described by a scaling function and has a periodical distribution of the Sb-poor Ag deposits in space with a fundamental frequency. A condition for instability of the electrochemical reactions, which causes the transient changes in the surface morphology, is derived using linearized perturbation equations of the rate equations. The experimental results qualitatively support the instability condition.
