A highly conductive Ni(OH)2nano-sheet wrapped CuCo2S4nano-tube electrode with a core-shell structure for high performance supercapacitors

doi:10.1039/d1dt01075a

	A highly conductive Ni(OH)2nano-sheet wrapped CuCo2S4nano-tube electrode with a core-shell structure for high performance supercapacitors
	Yuan, Yinan 1; Jia, Henan 2; Liu, Zhaoyuan 1; Wang, Lidong 1; Sheng, Jie 3; Fei, Weidong 1
刊名	Dalton Transactions
	2021-06-28
卷号	50 期号:24 页码:8476-8486
关键词	Capacitance Shells (structures) Supercapacitor Asymmetric supercapacitor Core shell structure Electrochemical performance Electrode material Optimum selection Skeleton structure Specific capacitance Volume deformation
ISSN号	14779226
DOI	10.1039/d1dt01075a
英文摘要	The design of microstructures and the optimum selection of electrode materials have substantial effects on the electrochemical performances of supercapacitors. A core-shell structured CuCo2S4@Ni(OH)2electrode material was designed, with CuCo2S4nanotubes as the core wrapped by interlaced Ni(OH)2nano-sheets as the shell. The hydrothermal and electro-deposition processes were adopted to synthesize CuCo2S4@Ni(OH)2materials. The CuCo2S4nanotubes can both provide specific capacitance and act as a "superhighway" for electrons due to their highly conductive skeleton structure. The Ni(OH)2nano-sheets will boost the electrochemically active sites and enhance the specific surface area. Meanwhile, the mutually restricted core-shell CuCo2S4@Ni(OH)2electrode could regulate the volume deformation to improve its stability. The CuCo2S4@Ni(OH)2electrode had a maximum specific capacitance of 2668.4 F g−1at a current density of 1 A g−1and a superior cycling stability of 90.3% after 10 000 cycles. Moreover, a CuCo2S4@Ni(OH)2//active carbon asymmetric supercapacitor with a maximum energy density of 44 W h kg−1was assembled, suggesting that CuCo2S4@Ni(OH)2is a successful binder-free electrode material for high performance supercapacitors. © The Royal Society of Chemistry 2021.
WOS研究方向	Chemistry
语种	英语
出版者	Royal Society of Chemistry
WOS记录号	WOS:000655736200001
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/150907]
专题	材料科学与工程学院
作者单位	1.School of Materials Science and Engineering, Harbin Institute of Technology, Harbin; 150001, China; 2.School of Materials Science and Engineering, Lanzhou University of Technology, Lanzhou; 730050, China; 3.Laboratory for Space Environment and Physical Science, Research Center of Basic Space Science, Harbin Institute of Technology, Harbin; 150001, China
推荐引用方式 GB/T 7714	Yuan, Yinan,Jia, Henan,Liu, Zhaoyuan,et al. A highly conductive Ni(OH)2nano-sheet wrapped CuCo2S4nano-tube electrode with a core-shell structure for high performance supercapacitors[J]. Dalton Transactions,2021,50(24):8476-8486.
APA	Yuan, Yinan,Jia, Henan,Liu, Zhaoyuan,Wang, Lidong,Sheng, Jie,&Fei, Weidong.(2021).A highly conductive Ni(OH)2nano-sheet wrapped CuCo2S4nano-tube electrode with a core-shell structure for high performance supercapacitors.Dalton Transactions,50(24),8476-8486.
MLA	Yuan, Yinan,et al."A highly conductive Ni(OH)2nano-sheet wrapped CuCo2S4nano-tube electrode with a core-shell structure for high performance supercapacitors".Dalton Transactions 50.24(2021):8476-8486.