Cation Exchange-Induced Nickel Active Sites on FeOOH Cocatalyst for Enhanced Photoelectrochemical Water Oxidation of BiVO4 Photoanode

Key Points

• This research aims to improve the efficiency and stability of BiVO4 photoanodes for photoelectrochemical water splitting.
• Developed nickel active sites on FeOOH cocatalyst through cation exchange.
• Evaluated the performance of the BiVO4 photoanodes in PEC water oxidation under sunlight.
• Conducted experiments to measure improvement in water oxidation efficiency.
• Significant increase in water oxidation efficiency recorded with the modified BiVO4 photoanodes.
• Achieved a measurable enhancement in stability compared to standard BiVO4 configurations.