Electronic Structure Modulation and Reaction Pathway Regulation in Co–Based Dual–Atom Catalysts for Oxygen Evolution Reaction ⚡🔬

The development of efficient electrocatalysts for the oxygen evolution reaction (OER) is essential for advancing sustainable energy technologies such as water splitting and renewable hydrogen production 🌱⚡. Recently, cobalt (Co)–based dual-atom catalysts have emerged as a powerful strategy to enhance catalytic performance by precisely tuning the electronic structure and active sites at the atomic level. Unlike conventional single-atom or nanoparticle catalysts, dual-atom configurations enable synergistic interactions between neighboring metal atoms, improving charge transfer efficiency and catalytic activity 🚀.

Electronic structure modulation plays a crucial role in optimizing adsorption energies of reaction intermediates such as *OH, *O, and *OOH during the OER process ⚙️. By engineering coordination environments and metal–metal interactions, researchers can regulate electron density distribution around cobalt active centers, significantly lowering energy barriers and accelerating reaction kinetics. This controlled tuning helps create more favorable catalytic pathways, leading to improved stability and higher oxygen evolution efficiency in alkaline and acidic electrolytes 🔋✨.

Furthermore, reaction pathway regulation through Co-based dual-atom catalysts enables selective intermediate formation and reduces unwanted side reactions, enhancing overall catalytic durability and performance 📈🔍. These advances highlight the importance of rational catalyst design in next-generation electrocatalysis and clean energy systems. As research continues to explore atomic-level engineering strategies, Co-based dual-atom catalysts are expected to play a transformative role in scalable hydrogen production and sustainable electrochemical energy conversion technologies 🌍💧⚡.

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