A dynamic model of potentiostatic current oscillation of copper electrodissolution in acidic chloride solution

A model of current oscillation of copper potentiostatic electrodissolution in acidic chloride solution is proposed. It involves nonlinear steps domina ted by couplings between chemical reactions and current, The linear stabili ty theorem, as well as the bifurcation analysis is applied to discussing re gimes of dynamic behavior in the parametric plane, Furthermore, both the po larization curve and the current oscillation curve are calculated respectiv ely modeled as a stable steady state function related to the externally con trolled potential and a stable limit cycle on state plane. The theoretical results are in good qualitative agreement with experimental observation rep orted in literature, It is concluded that the theoretical study of isoampli tude electrochemical oscillation can be achieved in light of Hopf bifurcati on analysis.