Multi-periodic and chaotic cyclic voltammograms at anodic dissolution of copper

Periodic (up to period 8) and chaotic voltammograms are obtained during mul ticyclic scanning of applied potential during copper dissolution in a coppe r sulphate-sulphuric acid solution. Dynamic character of voltammograms is a nalysed by the reconstruction of attractors, Poincare sections and return m aps. Obtained results show that changes of bifurcation parameters (a sweep rate or an upper potential limit) cause that voltammograms change according to period doubling sequence.