Electrochemical characterization of degradation of oxygen evolution anode for seawater electrolysis

- Degradation of Mn-Mo-Sn oxide/Ir-Sn oxide/Ti anode for oxygen evolution in seawater electrolysis was characterized.
- Electrolysis at a high current density led to a gradual increase in the cell voltage due to the oxide growth on the Ti substrate.
- Oxide and double layer discharges were differentiated by measurement at every 0.1 and 400 μsec after current interruption.
- The oxide resistance for the anode examined became about 0.8 mΩm2 after oxygen evolution for 430 h at 2000 Am−2.