Unraveling the Dynamic Reconstruction of Active Co(IV)‐O Sites on Ultrathin Amorphous Cobalt‐Iron Hydroxide Nanosheets for Efficient Oxygen‐Evolving

Highly-efficient and cost-effective electrocatalysts toward the oxygen evolution reaction (OER) are crucial for advancing sustainable energy technologies. Herein, a novel approach leveraging corrosion engineering is presented to facilitate the in situ growth of amorphous cobalt-iron hydroxides on nickel-iron foam (CoFe(OH)