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A Bimetallic Zn/Fe Polyphthalocyanine‐Derived Single‐Atom Fe‐N 4 Catalytic Site:A Superior Trifunctional Catalyst for Overall Water Splitting and Zn–Air Batteries

2018; Wiley; Volume: 57; Issue: 28 Linguagem: Inglês

10.1002/anie.201804349

1521-3773

Yuan Pan, Shoujie Liu, Kaian Sun, Xin Chen, Bin Wang, Konglin Wu, Xing Cao, Weng‐Chon Cheong, Rongan Shen, Aijuan Han, Zheng Chen, Lirong Zheng, Jun Luo, Yan Lin, Yunqi Liu, Dingsheng Wang, Qing Peng, Qiang Zhang, Chen Chen, Yadong Li,

Nanomaterials for catalytic reactions

Developing an efficient single-atom material (SAM) synthesis and exploring the energy-related catalytic reaction are important but still challenging. A polymerization-pyrolysis-evaporation (PPE) strategy was developed to synthesize N-doped porous carbon (NPC) with anchored atomically dispersed Fe-N4 catalytic sites. This material was derived from predesigned bimetallic Zn/Fe polyphthalocyanine. Experiments and calculations demonstrate the formed Fe-N4 site exhibits superior trifunctional electrocatalytic performance for oxygen reduction, oxygen evolution, and hydrogen evolution reactions. In overall water splitting and rechargeable Zn-air battery devices containing the Fe-N4 SAs/NPC catalyst, it exhibits high efficiency and extraordinary stability. This current PPE method is a general strategy for preparing M SAs/NPC (M=Co, Ni, Mn), bringing new perspectives for designing various SAMs for catalytic application.