Novel F-doped IrO2 oxygen evolution electrocatalyst for PEM based water electrolysis

► Nanostructured IrO2:F thin films have been wet chemically synthesized. ► Thin film of IrO2:F (F=20 wt.%) exhibit 19% higher catalytic activity than IrO2. ► All F doped IrO2 thin films show higher catalytic activity than pure undoped IrO2. ► All F doped IrO2 thin films exhibit comparable durability compared to pure IrO2. ► Thin films of IrO2:F are promising anode electrocatalysts for water electrolysis.