Reconstructing the Coordination Environment of Fe/Co Dual‐atom Sites towards Efficient Oxygen Electrocatalysis for Zn–Air Batteries

• DOI: 10.1002/anie.202419595
• Publication Date: 2024-11-14T13:20:33Z
• Authors: Hengqi Liu; Jinzhen Huang; Kun Feng; Rui Xiong; Shengyu Ma; Ran Wang; Qiang Fu; Moniba Rafique; Zhiguo Liu; Jiecai Han; Daxing Hua; Jiajie Li; Jun Zhong; Xianjie Wang; Zhonglong Zhao; Tai Yao; Sida Jiang; Ping Xu; Zhihua Zhang; Bo Song
• Keywords: Oxygen evolution

Dual-atom catalysts with nitrogen-coordinated metal sites embedded in carbon can drive the oxygen reduction and evolution reactions (ORR/OER) rechargeable zinc-air batteries (ZABs), further improvement is limited by linear scaling relationship of intermediate binding energies absorbate mechanism (AEM). Triggering lattice (LOM) promising to overcome this challenge, but has yet been verified since lacking bridge (O) rigid coordination environment centers. Here, we demonstrate that suitably tailored dual-atom FeCo-N-C undergo out-plane in-plane reconstruction form both axial O at centers, thus activate LOM pathway. The shortened Fe-N bonds also favors ORR process, therefore a catalyst. assembled ZABs peak power density 332 mW cm