Recent Progress on Fe-Based Single/Dual-Atom Catalysts for Zn-Air Batteries

Area of Science:

• Materials Science
• Electrochemistry
• Energy Storage

Background:

• Zinc-air batteries (ZABs) are promising for large-scale energy storage due to high energy density, safety, and low cost.
• Developing efficient and affordable electrocatalysts remains a critical challenge for ZAB commercialization.

Purpose of the Study:

• To review recent advancements in iron-based single-atom catalysts (SACs) and dual-atom catalysts (DACs) for ZABs.
• To elucidate the structure-performance relationships of Fe-SACs and Fe-DACs at the atomic level.
• To provide guidelines for designing next-generation ZAB electrocatalysts.

Main Methods:

• Literature review and analysis of existing research on Fe-SACs and Fe-DACs.
• Focus on atomic-level structural characterization and catalytic performance evaluation.
• Correlation of catalyst structure with electrochemical performance in ZABs.

Main Results:

• Fe-based SACs and DACs demonstrate excellent catalytic activity and atom utilization for ZABs.
• Atomic arrangement significantly influences the electrocatalytic performance of Fe-SACs and DACs.
• These catalysts offer a low-cost alternative to precious metal catalysts.

Conclusions:

• Fe-SACs and DACs are highly effective electrocatalysts for advancing ZAB technology.
• Understanding atomic-level structure is key to optimizing catalyst design.
• Further research is needed to overcome challenges and fully realize ZAB potential.