Vanadium nitride with surface single specie oxide via vanadium-organic frameworks precursor

doi:10.1016/j.jpowsour.2019.227687

	Vanadium nitride with surface single specie oxide via vanadium-organic frameworks precursor
	Liu, Ying 2; Liu, Lingyang 1; Kang, Long 2; Ran, Fen 2
刊名	Journal of Power Sources
	2020-02-29
卷号	450
关键词	Alkalinity Capacitance Electrolytes Oxides Supercapacitor Vanadium dioxide Alkaline electrolytes Aqueous electrolyte Capacitance retention Cycle stability Cycling stability Material surface Potential windows Vanadium nitrides
ISSN号	03787753
DOI	10.1016/j.jpowsour.2019.227687
英文摘要	Vanadium nitride has a large potential window of 1.2 V and a high capacitance in the aqueous electrolyte attributed to vanadium oxides existed on its surface. However, these vanadium oxides, to be precise, V5+-containing oxides existed on vanadium nitride surface, always gradually dissolve in alkaline electrolyte as cycle progress goes, which largely affects cycling stability of the material. In this paper, we prepare imidazole-Vanadium-Organic Frameworks (imi-V-MOFs) as precursor to synthesize vanadium nitride containing single VO2 on material surface by method of facile chemical reaction. The prepared vanadium nitride shows a wide operating potential of 1.2 V and a capacitance of 149.5 F/g. The most amazing thing is that it has good cycle stability with capacitance retention of 85% after 1, 000 cycles at 1 A/g. © 2020 Elsevier B.V.
WOS研究方向	Chemistry ; Electrochemistry ; Energy & Fuels ; Materials Science
语种	英语
出版者	Elsevier B.V., Netherlands
WOS记录号	WOS:000517663800099
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/115253]
专题	材料科学与工程学院
作者单位	1.Laboratory of Clean Energy Chemistry and Materials, State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese of Academy of Sciences, Lanzhou; 730000, China 2.State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metals, School of Material Science and Engineering, Lanzhou University of Technology, Lanzhou; 730050, China;
推荐引用方式 GB/T 7714	Liu, Ying,Liu, Lingyang,Kang, Long,et al. Vanadium nitride with surface single specie oxide via vanadium-organic frameworks precursor[J]. Journal of Power Sources,2020,450.
APA	Liu, Ying,Liu, Lingyang,Kang, Long,&Ran, Fen.(2020).Vanadium nitride with surface single specie oxide via vanadium-organic frameworks precursor.Journal of Power Sources,450.
MLA	Liu, Ying,et al."Vanadium nitride with surface single specie oxide via vanadium-organic frameworks precursor".Journal of Power Sources 450(2020).