CeO2 composite metal organic framework is used to construct high-performance lithium-sulfur batteries

doi:10.1016/j.jallcom.2022.164341

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	CeO2 composite metal organic framework is used to construct high-performance lithium-sulfur batteries
	Feng, Wangjun; Chen, Jingzhou; Niu, Yueping; Zhao, Wei; Zhang, Li
刊名	Journal of Alloys and Compounds
	2022-06-15
卷号	906
关键词	Carbon Lithium batteries Lithium sulfur batteries Metals Organometallics Polysulfides Porous materials Rare earths Reaction kinetics Battery performance Electrical conductivity Electrochemical performance High specific capacity Hydrothermal methods Lithium/sulfur batteries Metalorganic frameworks (MOFs) Performance Polysulphides Specific discharge capacity
ISSN号	0925-8388
DOI	10.1016/j.jallcom.2022.164341
英文摘要	The high specific capacity of lithium-sulfur batteries makes them a potential next-generation energy storage device, but the shuttle effect and low electrical conductivity of sulfur hinder their development. In this paper, a one-step hydrothermal method was used to prepare cerium dioxide and metal organic framework composites to improve the electrochemical performance of lithium-sulfur batteries. Polar cerium dioxide has a strong affinity to polysulfides. Experiments further confirmed that CeO2 has a positive effect on the battery performance. UV-Vis tests were performed on the composites. After standing for 1 h, Zn@NPC-CeO2-2 showed the best adsorption of polysulfides. In addition, the specific discharge capacity of the battery was 569.3 mA h/g with 88% capacity retention after 200 cycles at 2 C. The results indicate that the addition of appropriate amounts of rare earth metal oxides can effectively improve the reaction kinetics of the battery and also provide a new idea for improving the performance of lithium-sulfur batteries. © 2022 Elsevier B.V.
WOS研究方向	Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering
语种	英语
出版者	Elsevier Ltd
WOS记录号	WOS:000779682100001
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/158046]
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	Feng, Wangjun,Chen, Jingzhou,Niu, Yueping,et al. CeO2 composite metal organic framework is used to construct high-performance lithium-sulfur batteries[J]. Journal of Alloys and Compounds,2022,906.
APA	Feng, Wangjun,Chen, Jingzhou,Niu, Yueping,Zhao, Wei,&Zhang, Li.(2022).CeO2 composite metal organic framework is used to construct high-performance lithium-sulfur batteries.Journal of Alloys and Compounds,906.
MLA	Feng, Wangjun,et al."CeO2 composite metal organic framework is used to construct high-performance lithium-sulfur batteries".Journal of Alloys and Compounds 906(2022).