Electrochemical investigation of Ti/ IrO2–Ta2O5 DSA electrodes for the oxygen evolution reaction

Ti based dimensionally stable anodes (DSA) have been widely employed for oxygen evolution reaction (OER) in the electrochemical industry. DSAs made of IrO2 and Ta2O5 as anelectrocatalytically active layer coated on a titanium substrate was prepared by the several methods and successfully used for OER in the mineral extraction, cathodic protection, electroplating, etc. In the present work, the IrO2-Ta2O5 coated titanium anode was synthesizedand characterized, and OER on IrO2–Ta2O5 mixed oxide electrodes in H2SO4 solution was studied by performing current-potential and EIS measurements

Keywords:

Ti/ IrO2–Ta2O5 , DSA Electrode , OER , Electrocatalyst , EIS