Polar Co3Se4 nitrogen-doped porous carbon derived from ZIF-67 for use as a sulfur substrates in high-performance lithium-sulfur batteries

doi:10.1016/j.jallcom.2022.166435

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	Polar Co3Se4 nitrogen-doped porous carbon derived from ZIF-67 for use as a sulfur substrates in high-performance lithium-sulfur batteries
	Zhao, Wei; Feng, Wangjun; Chen, Jingzhou; Niu, Yueping; Zhang, Li
刊名	Journal of Alloys and Compounds
	2022-11-25
卷号	923
关键词	Carbon Decay (organic) Doping (additives) Electric discharges Lithium compounds Lithium sulfur batteries Lithium-ion batteries Nitrogen Polysulfides Porous materials Reaction kinetics Selenium compounds Substrates Coulomb efficiency Electrochemical performance Energy density Lithium/sulfur batteries Nitrogen-doped Performance Polysulphides Porous carbons Storage systems ZIF-67
ISSN号	0925-8388
DOI	10.1016/j.jallcom.2022.166435
英文摘要	Lithium-sulfur batteries can have several times the energy density of conventional lithium-ion batteries and are a likely replacement for such batteries in high-daensity storage systems. Nevertheless, slow reaction kinetics, the shuttle effect of polysulfides and a low Coulomb efficiency hinder the commercialization of lithium-sulfur batteries. In this work, a polar Co3Se4 nitrogen-doped porous carbon (Co3Se4-N-C) framework material was synthesized from ZIF-67 and used as a sulfur substrate for Li-S batteries to retard the shuttle effect of LiPSs and improve the cycling stability. Based on experiments and theoretical calculations, it is proven that Co3Se4-N-C is an effective electrode material to promote polysulfide conversion. The specific capacity of discharge at 0.1 C reaches 1370.9 mAh g−1, with a decay rate of 0.057 % per cycle after 500 cycles at 1 C. © 2022 Elsevier B.V.
语种	英语
出版者	Elsevier Ltd
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/159740]
专题	理学院
作者单位	School of Science, Lanzhou University of Technology, Lanzhou; 730050, China
推荐引用方式 GB/T 7714	Zhao, Wei,Feng, Wangjun,Chen, Jingzhou,et al. Polar Co3Se4 nitrogen-doped porous carbon derived from ZIF-67 for use as a sulfur substrates in high-performance lithium-sulfur batteries[J]. Journal of Alloys and Compounds,2022,923.
APA	Zhao, Wei,Feng, Wangjun,Chen, Jingzhou,Niu, Yueping,&Zhang, Li.(2022).Polar Co3Se4 nitrogen-doped porous carbon derived from ZIF-67 for use as a sulfur substrates in high-performance lithium-sulfur batteries.Journal of Alloys and Compounds,923.
MLA	Zhao, Wei,et al."Polar Co3Se4 nitrogen-doped porous carbon derived from ZIF-67 for use as a sulfur substrates in high-performance lithium-sulfur batteries".Journal of Alloys and Compounds 923(2022).