NiCoLDH nanosheets grown on MOF-derived Co_(3)O_(4) triangle nanosheet arrays for high-performance supercapacitor

作     者：Xuemin Yin Hejun Li Ruimei Yuan Jinhua Lu Xuemin Yin;Hejun Li;Ruimei Yuan;Jinhua Lu

作者机构：State Key Laboratory of Solidification ProcessingCarbon/Carbon Composites Research CenterNorthwestern Polytechnical UniversityXi’an 710072China 

出 版 物：《Journal of Materials Science & Technology》 (材料科学技术（英文版）)

年 卷 期：2021年第62卷第3期

页      面：60-69页

核心收录：

学科分类：080801[工学-电机与电器] 0808[工学-电气工程] 07[理学] 070205[理学-凝聚态物理] 08[工学] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0702[理学-物理学] 

基　　金：financial support from the National Natural Science Foundation of China(Grant No.51821091,51872234) the Natural Science Foundation of Shaanxi Province(2018JM5044) 

主　　题：NiCoLDH Co_(3)O_(4) Core-shell Supercapacitor MOF 

摘      要：Hierarchical Co_(3)O_(4)@NiCoLDH nanosheets(NSs)were prepared on carbon cloth through a multistep method,containing Metal-organic frameworks(MOF)-templated thermal annealing and *** triangle-shaped Co_(3)O_(4 NSs)were firstly obtained by thermal treatment of MOF templates in ***,ultrathin NiCoLDH_(NSs)were in-situ electrodeposited on the surface of Co_(3)O_(4NSs),constructing a core-shell *** the unique hierarchical structure,high conductivity of Co_(3)O_(4 NSs)core and large surface area of NiCoLDHNSs shell,the Co_(3)O_(4)@NiCoLDH_(NSs)array served as supercapacitor electrode exhibits excellent electrochemical properties,such as high specific capacitance of 1708 F g^(-1)(850 C g^(-1))at a current density of 1 A g^(-1),good rate capability,and excellent cycling ***,the asymmetric supercapacitor assembled by Co_(3)O_(4)@NiCoLDH_(NSs)and activated carbon,also displays superior electrochemical perfo rmance with high energy density and power ***,the strategy of constructing core-shell structure based on MOF templates could be extended to other electrochemical fields.