Strong interfacial electronic coupling activates NiFeOOH for alkaline seawater oxidation

Key Points

• This research aims to enhance the efficiency of seawater oxidation through the modification of Ni2P/Fe2P nanosheets.
• Ga-modified Ni2P/Fe2P nanosheets were synthesized and tested for operando reconstruction into NiFeOOH-GaOx active phase.
• Interfacial electronic coupling and charge redistribution were analyzed during the alkaline seawater OER.
• Industrial-scale applicability was evaluated based on the nanostructure's performance.
• Operando reconstruction was confirmed with enhanced performance in alkaline seawater oxidation.
• Interfacial electronic coupling was significantly boosted, leading to improved efficiency in the oxygen evolution reaction (OER).
• Charge redistribution facilitated increased charge transfer during the reaction.