Internal Polarization Field Induced Hydroxyl Spillover Effect for Industrial Water Splitting Electrolyzers

Abstract

Highlights Analyzed the function of internal polarization field in Ni2P/FeP2 via hydroxyl spillover effect. From theoretical design to experimental verification, to optimize adsorption energy of oxygen intermediates on Ni active site, and further boost the xygen evolution reaction process. A hydroxyl spillover effect driven by internal polarization field in Ni2P/FeP2 can be amplified in low concentration alkaline electrolyte environment, and facilitate the application in anion exchange membrane water electrolyzer systems.

Keywords

• Hydroxyl spillover effect
• Internal polarization field
• Heterostructure
• Oxygen reduction reaction
• Anion exchange membrane water electrolysis