Rational design of interfacial bonds within dual carbon-protected manganese oxide towards durable aqueous zinc ion battery

作     者：Xiuli Guo Chunguang Li Xiyang Wang Zhenhua Li Hui Zeng Pan Hou Minggang Xie Yuxin Li Zhan Shi Shouhua Feng Xiuli Guo;Chunguang Li;Xiyang Wang;Zhenhua Li;Hui Zeng;Pan Hou;Minggang Xie;Yuxin Li;Zhan Shi;Shouhua Feng

作者机构：State Key Laboratory of Inorganic Synthesis and Preparative ChemistryCollege of ChemistryJilin UniversityChangchun 130012China Department of Mechanical and Mechatronics EngineeringWaterloo Institute for NanotechnologyMaterials Interface FoundryUniversity of WaterlooWaterlooOntario N2L 3G1Canada 

出 版 物：《Science China Chemistry》 (中国科学（化学英文版）)

年 卷 期：2023年第66卷第5期

页      面：1406-1416页

核心收录：

学科分类：0808[工学-电气工程] 07[理学] 08[工学] 070304[理学-物理化学(含∶化学物理)] 0805[工学-材料科学与工程（可授工学、理学学位）] 0703[理学-化学] 

基　　金：supported by the National Natural Science Foundation of China(22271114,21621001) the Foundation of Science and Technology Development of Jilin Province,China(20200801004GH) 111 Project(B17020) the financial support by the program for JLU Science and Technology Innovative Research Team(JLUSTIRT)。 

主　　题：manganese oxide interfacial chemical bonds carbon modification aqueous zinc ion batteries 

摘      要：Manganese-based cathode materials are promising candidates for aqueous zinc ion batteries(AZIBs)by reason of their low cost and high energy density.However,their practical applicability is hampered by the intrinsic defects of poor electrical conductivity,sluggish reaction kinetics,and severe structural deterioration.Herein,we constructed a hierarchically porous structure composed of carbon-encapsulated Mn O nanoparticles(MOC)and three-dimensional(3D)nitrogen-doped graphene aerogel(NGA)(denoted as MOC@NGA).The hybrid was synthesized by a facile in-situ coprecipitation and annealing of manganesebased metal-organic framework(Mn-MOF74)and NGA composite(Mn-MOF74@NGA).Specifically,the carbon shells inherited from organic ligand of Mn-MOF74 could restrain the volume changes of Mn O,and the porous NGA prevented the agglomeration of MOC nanoparticles and enriched the types of interfacial chemical bonds.Profiting from the synergistic effect of rich interface chemical bonds and dual-carbon protection,the MOC@NGA hybrids exhibit fast interfacial electron/charge transfer and transport,and outstanding structural stability.Therefore,MOC@NGA cathode delivers an excellent rate performance(270 and 99.8 m Ah g^(-1)at 0.1 and 2.0 A g^(-1))and maintains an excellent specific capacity of 151.6 m Ah g^(-1)after 2,000cycles at 1.0 A g^(-1).Moreover,the fabricated MOC@NGA-based quasi-solid-state battery not only achieves outstanding flexibility but also displays impressive cycling stability,demonstrating a promising potential for portable and flexible equipment.This work provides a feasible strategy for the fabrication of the bridging structure of manganese-based oxides and porous carbon matrix for high-specific capacity and durable AZIBs cathodes.