Sub-5 nm ZnCoS shell on Co core via chemical vapor reconstruction: ultra-thin heterointerface enabling efficient oxygen electrocatalysis in zinc-air batteries

Key Points

• The research aims to develop ultrathin ZnCoS shells on Co cores to enhance oxygen electrocatalysis.
• Engineered ZnCoS shells using chemical vapor reconstruction of ZnS.
• Utilized N/S-doped carbon structures to support charge transfer.
• Analyzed quantum confinement effects in the heterostructures.
• Improved oxygen electrocatalysis performance observed in zinc-air batteries.
• Charge transfer efficiency was significantly increased with the ultrathin ZnCoS shells.
• Demonstrated the potential of heterostructures for better battery performance.