Selenium-doped carbon nanotubes/nickel selenide coaxial nanocables for energy storage

doi:10.1016/j.jpowsour.2021.230587

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	Selenium-doped carbon nanotubes/nickel selenide coaxial nanocables for energy storage
	Jin, Fangzhou 1; Li, Mingjie 1; Xie, Lixiang 1; Jiang, Jinlong 1,2
刊名	JOURNAL OF POWER SOURCES
	2021-12-01
卷号	514
关键词	Carbon nanotube Nickel selenide Coaxial nanocable Supercapacitor Lithium-ion battery
ISSN号	0378-7753
DOI	10.1016/j.jpowsour.2021.230587
英文摘要	Coaxial nanocable heterostructures consisting of highly conductive carbon nanomaterial core and active transition-metal compound sheath are promising potential candidates for advanced energy storage materials. Herein, the multi-functional selenium-doped carbon nanotubes/nickel selenide coaxial nanocables with chemical bonding interface are prepared by using an electroless deposition combined with the following chemical vapor reaction process, in which the nickel layer is first deposited onto the carbon nanotube core and subsequently transformed in-situ into the nickel selenide sheath by the controlled selenization reaction at elevated temperature. Such coaxial structure provides the large active material/electrolyte contact area, and the fast diffusion and transfer of mass and charge in the electrochemical process, thus which endows superior supercapacitive and good lithium storage performances. The coaxial nanocables exhibit a high specific capacity of 340.0 mAh g-1 at 1 A g-1 as an electrode for supercapacitor, and a lithium storage capacity of 600.0 mAh g-1 at 0.1 A g-1 as an anode for lithium-ion batteries. A supercapacitor based on the nanocables delivers a high energy density of 70.0 Wh kg- 1 at 803.0 W kg- 1 and long cycling stability with 65.0% capacitance retention after 8000 cycles at 10 A g- 1.
WOS研究方向	Chemistry ; Electrochemistry ; Energy & Fuels ; Materials Science
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000709720200003
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/150101]
专题	理学院
作者单位	1.Lanzhou Univ Technol, Sch Sci, Dept Phys, Lanzhou 730050, Peoples R China; 2.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	Jin, Fangzhou,Li, Mingjie,Xie, Lixiang,et al. Selenium-doped carbon nanotubes/nickel selenide coaxial nanocables for energy storage[J]. JOURNAL OF POWER SOURCES,2021,514.
APA	Jin, Fangzhou,Li, Mingjie,Xie, Lixiang,&Jiang, Jinlong.(2021).Selenium-doped carbon nanotubes/nickel selenide coaxial nanocables for energy storage.JOURNAL OF POWER SOURCES,514.
MLA	Jin, Fangzhou,et al."Selenium-doped carbon nanotubes/nickel selenide coaxial nanocables for energy storage".JOURNAL OF POWER SOURCES 514(2021).