Micro- and nanostructured TiO2 substrate: Influence on the electrocatalytic properties of manganese oxide based electrodes

The prepared electrodes have been characterized in terms of morphological and chemical properties by scanning electron microscopy (SEM) and Energy Dispersive X-ray Analysis (EDX). Their electrochemical behavior has been studied by polarization curves and cyclic voltammetry tests. Finally, the oxidation ability in the electrogeneration of inorganic chlorinated species and in the degradation of aqueous solutions containing the Reactive Blue 4 dye (RB4) as the model compound has been evaluated. To this aim, galvanostatic experiments have been conducted in a membrane-free reactor. The encouraging results support the need to further study highly modified electrodes based on mixed ruthenium and manganese oxide for their use in anodic oxidation process with special attention to avoid uneven distribution of metal oxides.