Collaborative integration of Fe-N_(x)active center into defective sulfur/selenium-doped carbon for efficient oxygen electrocatalysts in liquid and flexible Zn-air batteries

作     者：Yufeng Wu Mingjun Jing Juan Li Wenhui Deng Mingguang Yi Zhanpeng Chen Meixia Yang Jinyang Wu Xinkai Xu Yanson Bai Xiaoqing Zou Tianjing Wu Xianyou Wang 

作者机构：National Base for International Science&Technology CooperationNational Local Joint Engineering Laboratory for Key Materials of New Energy Storage BatteryKey Laboratory of Environmentally Friendly Chemistry and Application of Ministry of EducationXiangtan UniversityXiangtan 411105China 

出 版 物：《Chinese Chemical Letters》 (中国化学快报（英文版）)

年 卷 期：2024年第35卷第9期

页      面：421-425页

核心收录：

学科分类：081704[工学-应用化学] 07[理学] 070304[理学-物理化学(含∶化学物理)] 08[工学] 0817[工学-化学工程与技术] 0703[理学-化学] 

基　　金：supported by Distinguished Young Scholar Fund Project of Hunan Province Natural Science Foundation(No.2023JJ10041) the Hunan Provincial Education Office Foundation of China(No.21B0147) the Science and Technology Program of Xiangtan(No.GX-ZD20211004) the Hunan Provincial united foundation(No.2022JJ50136) the National Natural Science Foundation of China(No.52003230) the Science and Technology Innovation Program of Hunan Province(No.2021RC2091) 

主　　题：Atomic regulation Chalcogens co-doped Catalytic performance Noble metal-free electrocatalyst Zn-air battery 

摘      要：Strategic active site organization is imperative for the advancement of effective and long-lasting catalysts of oxygen reduction ***,the controllable multi-active site design is a highly intricate topic for catalyst *** pre-trapping and post-activation strategy,Fe-N bonding structure and S,Se functionalized heteroatom are integrated into a conductive porous *** this process,the nitrogen-abundant polymer 1,3,5-triformylbenzene-tris(4-aminophenyl)benzene(Tf-TAPA)adsorbs Fe^(3+)under the intrinsically metal anchoring ability of N atoms and simultaneously in-situ assembles longchain ***,the Fe^(3+)is transformed into Fe-N_(x)moieties with the conversion of the organic chain to incompletely graphitized ***,the alteration of the electronic configuration achieved through the introduction of dual-atom S and Se leads to a pronounced enhancement in catalytic *** from the Fe-N_(x)bonding structure,dense structural defects,and conductive carbon networks,the resultant Fe-S,Se/NCNs possesses a positive half-wave potential of 0.86 V and a 90%current retention rate,outstripping the Pt/C ***,the liquid and flexible ZAB driven by Fe-S,Se/NCNs achieves large power densities of 259.7 and 164.7 m W/cm^(2),*** study provides a new comprehension in developing an efficient and stable M-N-C oxygen electrocatalyst.