A Bimetallic Zn/Fe Polyphthalocyanine‐Derived Single‐Atom Fe‐N4 Catalytic Site:A Superior Trifunctional Catalyst for Overall Water Splitting and Zn–Air Batteries |
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| Authors: | Dr Yuan Pan Dr Shoujie Liu Kaian Sun Xin Chen Dr Bin Wang Konglin Wu Xing Cao Weng‐Chon Cheong Rongan Shen Dr Aijuan Han Zheng Chen Prof Lirong Zheng Prof Jun Luo Yan Lin Prof Yunqi Liu Prof Dingsheng Wang Prof Qing Peng Prof Qiang Zhang Prof Chen Chen Prof Yadong Li |
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| Institution: | 1. Department of Chemistry, Tsinghua University, Beijing, China;2. State Key Laboratory of Heavy Oil Processing, China University of Petroleum (East China), Qingdao, China;3. College of Chemistry and Materials Science, Anhui Normal University, Wuhu, China;4. Department of Chemistry, University of Science and Technology Beijing, Beijing, China;5. Department of Chemical Engineering, Tsinghua University, Beijing, China;6. Beijing Synchrotron Radiation Facility, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, China;7. Center for Electron Microscopy, Tianjin University of Technology, Tianjin, China |
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| Abstract: | 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. |
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| Keywords: | electrochemistry EXAFS N-doped porous carbon polymerization pyrolysis |
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