Hierarchically porous hollow architecture hosting dense Co/Fe single-atom sites for synergistic oxygen electrocatalysis

Key Points

• Enhanced oxygen electrocatalysis occurs due to synergistic effects of Co and Fe single-atom sites.
• The architecture features a hierarchically porous structure which increases surface area and activity.
• This analysis utilized various electrochemical techniques to demonstrate improved performance for the hollow architecture.
• Findings may enable advancements in energy conversion technologies, especially in green energy applications.