Flower-like nitrogen-oxygen-doped carbon encapsulating sulfur composite synthesized via in-situ oxidation approach

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	Flower-like nitrogen-oxygen-doped carbon encapsulating sulfur composite synthesized via in-situ oxidation approach
	Wang, Zhen-Bo; Wang, Qian; Li, Rongrong; Liu, Honghong; Yang, Minghui; Li, Chao; Gu, Da-Ming
刊名	CHEMICAL ENGINEERING JOURNAL
	2018
卷号	345 页码:271-279
关键词	Long Cycle-life Hollow Carbon s Batteries Rate Performance Polysulfide Reservoir High-capacity Lithium Graphene Cathode Nanofiber
英文摘要	Lithium sulfur battery, with higher gravimetric energy, is regarded as one of the promising next-generation energy storage devices. However, rapid capacity fading and poor rate capability under higher loading hinder its practical applications. Despite the encouraging progress achieved, the cost-effective solutions are still need to be sought for. Herein, a flower-like nitrogen-oxygen-doped carbon coated sulfur (F-S@NOC) composite was synthesized from a low-cost sulfur-containing organic ferro-compound, through a facile calcination and an in-situ oxidation process. The unique flower configuration is constructed by two-dimensional flake petal unit that not only expose more polar nitrogen/oxygen-containing functional groups for anchoring the dissolved intermediates of lithium polysulfides (LiPSs), but also facilitate improved electrochemical reaction kinetics since fast electron/Li+ transfer. Therefore, F-S@NOC demonstrates excellent electrochemical performances that a decay rate of 0.05% per cycle at 1C, and a high initial areal capacity of 4.49 mAh cm(-2) at 0.2C, are obtained respectively under the sulfur loading of 3 and 4.6 mg cm(-2).
学科主题	Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
语种	英语
公开日期	2018-12-04
内容类型	期刊论文
源URL	[http://ir.nimte.ac.cn/handle/174433/17295]
专题	2018专题
推荐引用方式 GB/T 7714	Wang, Zhen-Bo,Wang, Qian,Li, Rongrong,et al. Flower-like nitrogen-oxygen-doped carbon encapsulating sulfur composite synthesized via in-situ oxidation approach[J]. CHEMICAL ENGINEERING JOURNAL,2018,345:271-279.
APA	Wang, Zhen-Bo.,Wang, Qian.,Li, Rongrong.,Liu, Honghong.,Yang, Minghui.,...&Gu, Da-Ming.(2018).Flower-like nitrogen-oxygen-doped carbon encapsulating sulfur composite synthesized via in-situ oxidation approach.CHEMICAL ENGINEERING JOURNAL,345,271-279.
MLA	Wang, Zhen-Bo,et al."Flower-like nitrogen-oxygen-doped carbon encapsulating sulfur composite synthesized via in-situ oxidation approach".CHEMICAL ENGINEERING JOURNAL 345(2018):271-279.