Energy Storage Mechanism of Vanadium Nitride via Intercalating Different Atomic Radius for Expanding Interplanar Spacing

doi:10.1002/eem2.12188

	Energy Storage Mechanism of Vanadium Nitride via Intercalating Different Atomic Radius for Expanding Interplanar Spacing
	Liu, Ying 1,2; Liu, Lingyang 1; Kang, Long 2; Ran, Fen 2
刊名	ENERGY & ENVIRONMENTAL MATERIALS
	2021
卷号	5 期号:2 页码:565-571
关键词	electrode materials energy storage mechanism supercapacitors vanadium nitride V‐ MOFs
ISSN号	2575-0348
DOI	10.1002/eem2.12188
英文摘要	As a promising anode material in supercapacitors, vanadium nitride has been widely concerned due to its ultra-high theoretical specific capacitance. However, its routine test capacitance value is still far from the theoretical value and its energy storage mechanism is controversial. In order to solve these two key problems, here we prepare interplanar spacing expanded vanadium nitride materials with different impurity atoms intercalation from two anionic precursors of vanadium-based metal organic frameworks with different functional groups. The obtained vanadium nitride reaches a higher specific capacitance; and further, through ex situ X-Ray diffraction and in situ Raman, the charge storage of vanadium nitride is contributed by two processes: the first benefit is from the K+ de/intercalation in the interplanar spacing, and the other one is derived from the redox reaction with OH- by adsorption on surface. Furthermore, both of the first principle calculation and extended experiments support this idea. We believe that such detailed research on the energy storage mechanism can provide a clear idea for the application of metal nitrides in supercapacitors and other energy storage devices.
WOS研究方向	Materials Science
语种	英语
出版者	WILEY
WOS记录号	WOS:000640698200001
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/148255]
专题	材料科学与工程学院
作者单位	1.Liaocheng Univ, Sch Chem & Chem Engn, Shandong Prov Key Lab Chem Energy Storage & Novel, Liaocheng 252059, Shandong, Peoples R China 2.Lanzhou Univ Technol, Sch Mat Sci & Engn, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730050, Peoples R China;
推荐引用方式 GB/T 7714	Liu, Ying,Liu, Lingyang,Kang, Long,et al. Energy Storage Mechanism of Vanadium Nitride via Intercalating Different Atomic Radius for Expanding Interplanar Spacing[J]. ENERGY & ENVIRONMENTAL MATERIALS,2021,5(2):565-571.
APA	Liu, Ying,Liu, Lingyang,Kang, Long,&Ran, Fen.(2021).Energy Storage Mechanism of Vanadium Nitride via Intercalating Different Atomic Radius for Expanding Interplanar Spacing.ENERGY & ENVIRONMENTAL MATERIALS,5(2),565-571.
MLA	Liu, Ying,et al."Energy Storage Mechanism of Vanadium Nitride via Intercalating Different Atomic Radius for Expanding Interplanar Spacing".ENERGY & ENVIRONMENTAL MATERIALS 5.2(2021):565-571.