High-efficiency ozone generation via electrochemical oxidation of water using Ti anode coated with Ni-Sb-SnO2

Ozone (O-3) has been generated on Ni-Sb-SnO2/Ti electrode as anode immersed in acidic media at 25 A degrees C by electrochemical process. The anode was electrochemically characterized by cyclic voltammetry and morphologically characterized by scanning electron microscopy (SEM) and X-ray diffraction. The concentration of dissolved ozone was determined by a UV/Vis spectrophotometer. The type of electrode with different times coating on the titanium mesh and different acid type and various concentrations (C (acid)) were used, and the stability of the electrode was investigated under the experimental conditions by SEM images. Results shows that higher efficiency (53.7%) for O-3 generation by electrochemical oxidation of water were obtained in HClO4 (1 M) and an applied potential of 2.4 V vs. Ag/AgCl in 150 ml volume undivided electrochemical cell.