To investigate the formation of MnO2/ITO the electrodes we performed the electrodeposition at different pH and used two methods of electroplating. Fig. shows the dependencies obtained during the formation of a precipitate by the CV method. With this method the precipitate is deposited and partly dissolved cyclically, thus active centres are formed and the sediment builds up around these. It should be noted that, the potential for the start of the reaction shifts depending on the pH of the electrolyte. As the pH value increases, the potential for the start of the anodic reaction shifts significantly to less positive values. As suggested in reference ,