Atomically Dispersed Dual-Metal Sites Showing Unique Reactivity and Dynamism for Electrocatalysis

Abstract

Highlights An atomically dispersed catalyst with unprecedented N8V4 Co-Ni dual-metal sites is synthesized, which shows interesting asymmetric in situ structural evolution and serves as a quasi-bifunctional catalyst for water splitting. The flexible C–OH groups generated by in situ oxidation can reversibly turn on/off the hydrogen-bonding interaction with the oxygen evolution reaction intermediates to break the conventional scaling relationship.

Keywords

• Metal–organic frameworks
• Atomically dispersed catalyst
• Hydrogen bond
• Overall water splitting