Electrochemical generation of ozone: Comparison of IrO2 series with Pt/SnO2 anode support in solid membrane cell

Abstract

The technology of Proton exchange membrane water electrolysis offers an alternative to the corona discharge technology by preventing nitrogen oxide formation during ozone generation. In this study, various anode supports were installed in the membrane cell and their ozone production performances were assessed. The Pt/IrO2, Ta/IrO2 and Ru/IrO2 were compared with Pt/SnO2 based used for ozone generation specially in solid membrane cell, to be a anode support. An important component of the membrane cell for ozone generation, the anode support should exhibit corrosion resistance, oxygen evolution activity, good electrical conductivity, electrochemical stability, and low oxygen evolution over potential. The result shows Pt/SnO2 ozone anode support has better performance than Pt/IrO2, Ta/IrO2 and Ru/IrO2 anode supports,.