Necklace-like MoC sulfiphilic sites embedded in interconnected carbon networks for Li-S batteries with high sulfur loading

doi:10.1039/c9ta00741e

CORC > 金属研究所 > 中国科学院金属研究所

	Necklace-like MoC sulfiphilic sites embedded in interconnected carbon networks for Li-S batteries with high sulfur loading
	Shi, Huifa 1,3; Sun, Zhenhua 2; Lv, Wei 1; Wang, Shaogang 2; Shi, Ying 2; Zhang, Yunbo 5; Xiao, Shujie 1,3; Yang, Huicong 2; Yang, Quan-Hong 4; Li, Feng 2
刊名	JOURNAL OF MATERIALS CHEMISTRY A
	2019-05-14
卷号	7 期号:18 页码:11298-11304
ISSN号	2050-7488
DOI	10.1039/c9ta00741e
通讯作者	Lv, Wei(lv.wei@sz.tsinghua.edu.cn) ; Yang, Quan-Hong(qhyangcn@tju.edu.cn) ; Li, Feng(fli@imr.ac.cn)
英文摘要	The shuttling of dissolved polysulfide intermediates and their sluggish reaction kinetics largely reduce the cycle life and sulfur utilization of lithium-sulfur (Li-S) batteries. In this study, low-cost bacterial cellulose was used as the precursor for interconnected carbon networks and a supporting framework for impregnated molybdate ions. After freeze-drying and solid-state thermal reactions, necklace-like molybdenum carbide embedded in interconnected N-doped carbon nanofibers (MoC@N-CNF) was obtained to be used as a high sulfur loading host. On the one hand, the interconnected conductive carbon network enables fast electron and ion transport, and on the other hand, the embedded sulfiphilic MoC efficiently immobilizes polysulfides and catalytically promotes their redox conversion. Therefore, the as-prepared electrode coupled with the lithium polysulfide catholyte exhibits good cycling stability with a low capacity decay of 0.084% per cycle at 1C for 350 cycles and a high rate capability of 799 mA h g(-1) at 2C. Moreover, a high areal capacity of 12.3 mA h cm(-2) with an areal sulfur loading of 10 mg cm(-2) at 0.1C is also achieved.
资助项目	National Key R&D Program of China[2016YFB0100100] ; National Key R&D Program of China[2016YFA0200100] ; National Natural Science Foundation of China[51525206] ; National Natural Science Foundation of China[51521091] ; Strategic Priority Research Program of Chinese Academy of Sciences[XDA22010602] ; Youth Innovation Promotion Association of the Chinese Academy of Sciences[2015150] ; Institute of Metal Research[2015-PY03]
WOS研究方向	Chemistry ; Energy & Fuels ; Materials Science
语种	英语
出版者	ROYAL SOC CHEMISTRY
WOS记录号	WOS:000472225200046
资助机构	National Key R&D Program of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of Chinese Academy of Sciences ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; Institute of Metal Research
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/134051]
专题	金属研究所_中国科学院金属研究所
通讯作者	Lv, Wei; Yang, Quan-Hong; Li, Feng
作者单位	1.Tsinghua Univ, Grad Sch Shenzhen, Shenzhen Key Lab Graphene Based Mat, Engn Lab Functionalized Carbon Mat, Shenzhen 518055, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Liaoning, Peoples R China 3.Tsinghua Univ, Sch Mat Sci & Engn, Lab Adv Mat, Beijing 100084, Peoples R China 4.Tianjin Univ, Sch Chem Engn & Technol, Nanoyang Grp, State Key Lab Chem Engn, Tianjin 300072, Peoples R China 5.Tsinghua Univ, TBSI, Shenzhen 518055, Peoples R China
推荐引用方式 GB/T 7714	Shi, Huifa,Sun, Zhenhua,Lv, Wei,et al. Necklace-like MoC sulfiphilic sites embedded in interconnected carbon networks for Li-S batteries with high sulfur loading[J]. JOURNAL OF MATERIALS CHEMISTRY A,2019,7(18):11298-11304.
APA	Shi, Huifa.,Sun, Zhenhua.,Lv, Wei.,Wang, Shaogang.,Shi, Ying.,...&Li, Feng.(2019).Necklace-like MoC sulfiphilic sites embedded in interconnected carbon networks for Li-S batteries with high sulfur loading.JOURNAL OF MATERIALS CHEMISTRY A,7(18),11298-11304.
MLA	Shi, Huifa,et al."Necklace-like MoC sulfiphilic sites embedded in interconnected carbon networks for Li-S batteries with high sulfur loading".JOURNAL OF MATERIALS CHEMISTRY A 7.18(2019):11298-11304.