Complex Oscillations And Control & Synchronization Of The Oscillations During Copper Anode Dissolution

There are abundant oscillations in electrochemical systems. The study of electrochemical complex oscillations is of theory and practices' importance. The current oscillations during the anodic dissolution of copper into phosphoric acid are studied in this paper. We connect the electrochemical apparatus with computer by PCI-171HG card. Using the apparatus, we study the current oscillations by cyclic voltammetry and potentiostatical experiment. We develop the non-linear analysis program to dispose the current oscillations' time-series. The effect of phosphoric acid concentration , temperature . ohm resistance and benzotriazole on the current oscillations is studied. We show the evolution process of the oscillations' wave shapes during the polarization potential variety, and demonstrate the existence of the determinative chaos during the electrodissolution. By means of the algorithm of delay feedback, we study the control over the complex oscillations. Using the algorithm of proportional coupling synchronization, we study the synchronization of the oscillations between two independent copper anodes.