Engineering Fe‑N_(4)Electronic Structure with Adjacent Co‑N_(2)C_(2)and Co Nanoclusters on Carbon Nanotubes for Efficient Oxygen Electrocatalysis

作     者：Mingjie Wu Xiaohua Yang Xun Cui Ning Chen Lei Du Mohamed Cherif Fu‑Kuo Chiang Yuren Wen Amir Hassanpour Francois Vidal Sasha Omanovic Yingkui Yang Shuhui Sun Gaixia Zhang Mingjie Wu;Xiaohua Yang;Xun Cui;Ning Chen;Lei Du;Mohamed Cherif;Fu-Kuo Chiang;Yuren Wen;Amir Hassanpour;François Vidal;Sasha Omanovic;Yingkui Yang;Shuhui Sun;Gaixia Zhang

作者机构：State Key Laboratory of New Textile Materials and Advanced Processing TechnologiesWuhan Textile UniversityWuhan 430200People’s Republic of China Institut National de la Recherche Scientifique(INRS)Center Energie Materiaux TelecommunicationsVarennesQC J3X 1P7Canada Department of Chemical EngineeringMcGill University3610 University StreetMontrealQC H3A 0C5Canada Department of Electrical EngineeringEcole de Technologie Superieure(ETS)MontrealQC H3C 1K3Canada Canadian Light Source(CLS)44 Innovation BoulevardSaskatoonSK S7N 2V3Canada National Institute of Low-Carbon-and-Clean-EnergyBeijing 102211People’s Republic of China School of Materials Science and EngineeringUniversity of Science and Technology BeijingBeijing 100083People’s Republic of China 

出 版 物：《纳微快报:英文版》 (Nano-Micro Letters)

年 卷 期：2023年第15卷第12期

页      面：283-297页

核心收录：

学科分类：0831[工学-生物医学工程（可授工学、理学、医学学位）] 0808[工学-电气工程] 1002[医学-临床医学] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 0703[理学-化学] 0702[理学-物理学] 

基　　金：funded by the National Natural Science Foundation of China (22208331, 52003300) the Natural Sciences and Engineering Research Council of Canada (NSERC) the Fonds de Recherche du Québec-Nature et Technologies (FRQNT) Centre Québécois sur les Materiaux Fonctionnels (CQMF), McGill University école de Technologie Supérieure (éTS) Institut National de la Recherche Scientifique (INRS) the support from the Marcelle-Gauvreau Engineering Research Chair program 

主　　题：Atomically dispersed Fe-N-C catalysts ORR/OER Rechargeable zinc-air battery Fuel cells 

摘      要：Regulating the local configuration of atomically dispersed transition-metal atom catalysts is the key to oxygen electrocatalysis performance enhancement.Unlike the previously reported singleatom or dual-atom configurations,we designed a new type of binary-atom catalyst,through engineering Fe-N_(4)electronic structure with adjacent Co-N_(2)C_(2)and nitrogen-coordinated Co nanoclusters,as oxygen electrocatalysts.The resultant optimized electronic structure of the Fe-N_(4)active center favors the binding capability of intermediates and enhances oxygen reduction reaction(ORR)activity in both alkaline and acid conditions.In addition,anchoring M-N-C atomic sites on highly graphitized carbon supports guarantees of efficient charge-and mass-transports,and escorts the high bifunctional catalytic activity of the entire catalyst.Further,through the combination of electrochemical studies and in-situ X-ray absorption spectroscopy analyses,the ORR degradation mechanisms under highly oxidative conditions during oxygen evolution reaction processes were revealed.This work developed a new binary-atom catalyst and systematically investigates the effect of highly oxidative environments on ORR electrochemical behavior.It demonstrates the strategy for facilitating oxygen electrocatalytic activity and stability of the atomically dispersed M-N-C catalysts.