Advanced dual-atom catalysts for efficient oxygen evolution reaction

Abstract

Single-atom site catalysts (SACs) are widely used in various catalytic reactions because of their high atom utilization, mass activity, and selectivity. However, they have limitations in catalyzing multi-electron reactions due to their inherent mono-metal center feature. In recent years, dual-atom catalysts (DACs) have received substantial attention as they not only inherit the merits of SACs but also overcome their shortcomings. Therefore, this perspective aims to outline recent developments in DACs and deepen our understanding of the synergistic interactions between dual metal sites. The perspective begins by introducing efficient fabrication strategies for DACs, followed by depicting state-of-the-art characterization techniques. Exciting advances of DACs in the oxygen evolution reaction (OER) and their applications in powdered rechargeable battery devices are also discussed. Finally, some critical challenges of DACs are outlined, and futuristic perspectives are presented to enhance their feasibility in sustainable energy.