Novel combination of nickel-cobalt sulfide and oxide derived from Ni2CoS4@ZIF-67 for high performance supercapacitor

doi:10.1016/j.jallcom.2021.162861

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	Novel combination of nickel-cobalt sulfide and oxide derived from Ni2CoS4@ZIF-67 for high performance supercapacitor
	Xie, Lixiang 1; Li, Mingjie 1; Zhu, Peng 1; Xiao, Xianbin 1; Jia, Zhengfeng 2; Wei, Zhiqiang 1; Jiang, Jinlong 1,3
刊名	JOURNAL OF ALLOYS AND COMPOUNDS
	2022-03-25
卷号	898
关键词	Core-shell structure Metal-organic framework alpha-NiS@NiCoO2 Supercapacitor
ISSN号	0925-8388
DOI	10.1016/j.jallcom.2021.162861
英文摘要	As inspired by the surging demand for high performance energy storage systems, researchers have been designing and exploring advanced electrode materials exhibiting higher energy and power densities. In this study, a novel combination of nickel-cobalt sulfide and oxide was reported for high performance super-capacitors. The porous alpha-Ni(Co)S@NiCoO2 composites with core-shell structure were derived from the well-designed precursor with Ni2CoS4 and ZIF-67 serving as the self-sacrificing templates through a two-step calcination process at elevated temperatures. Such a heterostructure exhibited an ultra-high specific capacity of 502.4 mA h g(-1) at a current density of 1 A g(-1), which was attributed to the unique porous core-shell structure and the ingenious combination of bimetallic sulfide and oxide. Furthermore, a hybrid supercapacitor based on the alpha-Ni(Co)S@NiCoO2 composite and commercial activated carbon achieved a high energy density of 82.4 Wh kg(-1) at a power density of 847.5 W kg(-1). The prominent electrochemical performance exhibited by the alpha-Ni(Co)S@NiCoO2 heterostructure in this study was demonstrated to be promising to practically serve as advanced electrode materials in supercapacitors. (C) 2021 Elsevier B.V. All rights reserved.
WOS研究方向	Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering
语种	英语
出版者	ELSEVIER SCIENCE SA
WOS记录号	WOS:000749535600003
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/154772]
专题	理学院
作者单位	1.Lanzhou Univ Technol, Sch Sci, Dept Phys, Lanzhou 730050, Peoples R China; 2.Liaocheng Univ, Sch Mat Sci & Engn, Liaocheng 252000, Shandong, Peoples R China; 3.Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Lanzhou 730000, Peoples R China
推荐引用方式 GB/T 7714	Xie, Lixiang,Li, Mingjie,Zhu, Peng,et al. Novel combination of nickel-cobalt sulfide and oxide derived from Ni2CoS4@ZIF-67 for high performance supercapacitor[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2022,898.
APA	Xie, Lixiang.,Li, Mingjie.,Zhu, Peng.,Xiao, Xianbin.,Jia, Zhengfeng.,...&Jiang, Jinlong.(2022).Novel combination of nickel-cobalt sulfide and oxide derived from Ni2CoS4@ZIF-67 for high performance supercapacitor.JOURNAL OF ALLOYS AND COMPOUNDS,898.
MLA	Xie, Lixiang,et al."Novel combination of nickel-cobalt sulfide and oxide derived from Ni2CoS4@ZIF-67 for high performance supercapacitor".JOURNAL OF ALLOYS AND COMPOUNDS 898(2022).