Metal-organic framework derived hierarchical NiCo_(2)O_(4) triangle nanosheet arrays@SiC nanowires network/carbon cloth for flexible hybrid supercapacitors

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 ProcessingShaanxi Province Key Laboratory of Fiber Reinforced Light Composite MaterialsCarbon/Carbon Composites Research CenterNorthwestern Polytechnical UniversityXi’an710072China 

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

年 卷 期：2021年第81卷第22期

页      面：162-174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：The work was supported by the National Natural Science Foundation of China(Nos.51821091 and 51872233) the Natural Science Foundation of Shaanxi Province(No.2018JM5044) 

主　　题：Metal-organic framework SiC nanowire NiCo_(2)O_(4) Flexible hybrid supercapacitors 

摘      要：To overcome the disadvantages of traditional powder electrodes,such as the insufficient performance,the aggregation of active materials,and the complex fabrication process,rationally constructing free-standing electrode materials with hierarchical architecture is an effective and promising method,which could further improve the electrochemical ***,using metal-organic framework nanoarrays(MOFNAs)as self-sacrificial templates and SiC nanowires(SiCNWs)network as nanoscale conductive skeletons,we successfully fabricated the hierarchical core-shell SiCNWs@NiCo_(2)O_(4)NAs on carbon cloth(CC)*** advantages of structural merits,such as hierarchical porous triangle-like NiCo_(2)O_(4)NAs,the interwoven SiCNWs network and conductive CC substrate,when evaluated as a binder-free supercapacitor electrode,the CC/SiCNWs@NiCo_(2)O_(4)NAs shows a high specific capacitance of 1604.7 F g^(-1)(specific capacity of 222.9 mA h g^(-1))at 0.5 A g^(-1),good rate performance,and excellent cycling ***,the hybrid supercapacitor assembled with CC/SiCNWs@NiCo_(2)O_(4)NAs as the cathode and MOF derived CC/SiCNWs@CNAs as the anode,could deliver a high specific density of 49.9 W h kg^(-1) at a specific power of 800 W kg^(-1),stable cycling performance,and good ***,this feasible strategy for fabricating hierarchical structure displays great potential in the field of energy storage.