Tailoring nitrogen content in doped carbon by a facile synthesis with ionic liquid precursors for lithium ion batteries

doi:10.1016/j.apsusc.2019.07.180

	Tailoring nitrogen content in doped carbon by a facile synthesis with ionic liquid precursors for lithium ion batteries
	Xiao, Mingjun 1; Meng, Yanshuang 1,3; Li, Yuzhu 1; Liu, Xinglian 1; Ke, Xinyou 2; Ren, Guofeng 2; Zhu, Fuliang 1,3
刊名	APPLIED SURFACE SCIENCE
	2019-11-15
卷号	494 页码:532-539
关键词	Nitrogen-doped carbon Ionic liquids Anode materials Lithium ion batteries
ISSN号	0169-4332
DOI	10.1016/j.apsusc.2019.07.180
英文摘要	Ionic liquids have been intensively explored as precursors for doped carbons used as the anode materials in lithium ion batteries. Thanks to the vast number of potential ionic liquids, the types and contents of heteroatoms in the derived carbons can be tailored by appropriately choosing the ionic liquid precursors. In this work, nitrogen-doped carbons are synthesized through facile pyrolysis of ionic liquids with different nitrogen contents. Three types of nitrogen-doped carbons with a nitrogen content of 13.99 at.%, 11.79 at.% and 10.75 at.% were derived from [EMIm] N(CN)(2), [BMIm] N(CN)(2) and [HMIm] N(CN)(2) ionic liquids, respectively. It was found that increase of nitrogen content leads to decrease of charge transfer resistance and increase of capacity. The improved cell performance is related to the change of nitrogen-bonding configuration, microstructure, defect density and surface area of the derived carbons induced by the increased nitrogen content. Eventually, an appropriate selection of ionic liquids can achieve to tailor the nitrogen content of doped carbons and optimize the performance of lithium ion batteries.
资助项目	Foundation for Innovation Groups of Basic Research in Gansu Province[1606RJIA322]
WOS研究方向	Chemistry ; Materials Science ; Physics
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000487838900060
状态	已发表
内容类型	期刊论文
源URL	[http://119.78.100.223/handle/2XXMBERH/31487]
专题	材料科学与工程学院
通讯作者	Ren, Guofeng; Zhu, Fuliang
作者单位	1.Lanzhou Univ Technol, Sch Mat Sci & Engn, Lanzhou 730050, Gansu, Peoples R China 2.Case Western Reserve Univ, Dept Mech & Aerosp Engn, Cleveland, OH 44106 USA 3.State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730050, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Xiao, Mingjun,Meng, Yanshuang,Li, Yuzhu,et al. Tailoring nitrogen content in doped carbon by a facile synthesis with ionic liquid precursors for lithium ion batteries[J]. APPLIED SURFACE SCIENCE,2019,494:532-539.
APA	Xiao, Mingjun.,Meng, Yanshuang.,Li, Yuzhu.,Liu, Xinglian.,Ke, Xinyou.,...&Zhu, Fuliang.(2019).Tailoring nitrogen content in doped carbon by a facile synthesis with ionic liquid precursors for lithium ion batteries.APPLIED SURFACE SCIENCE,494,532-539.
MLA	Xiao, Mingjun,et al."Tailoring nitrogen content in doped carbon by a facile synthesis with ionic liquid precursors for lithium ion batteries".APPLIED SURFACE SCIENCE 494(2019):532-539.