Rational design of ZnS/CoS heterostructures in three dimensional N-doped CNTs for superior lithium storage

doi:10.1016/j.jallcom.2020.157867

	Rational design of ZnS/CoS heterostructures in three dimensional N-doped CNTs for superior lithium storage
	Cao, Meng 1; Liao, Fang 1; Wang, Qingqing 1; Luo, Wanshu 1; Ma, Yinglan 1; Zheng, Xinshi 1; Wang, Ying 1; Zhang, Lei 2,3
刊名	JOURNAL OF ALLOYS AND COMPOUNDS
	2021-04-05
卷号	859
关键词	Heterostructures Metal sulfides Lithium ion batteries Electrochemical performance
ISSN号	0925-8388
DOI	10.1016/j.jallcom.2020.157867
通讯作者	Wang, Ying(yingwang@jsnu.edu.cn) ; Zhang, Lei(lei.zhang@griffith.edu.au)
英文摘要	Multiphase metal sulfides have proven to show better lithium storage performance than their single phase competitors. However, rational designing of multiphase metal sulfides with rich phase boundaries and heterointerfacial structures is still a big challenge. In this work, a superior structure of nanosized ZnS/CoS heterostructure that embedding in in-situ formed three dimensional N-doped carbon nanotubes frameworks (ZnS/CoS-NCHTs) is fabricated via using a bimetallic zeolitic imidazolate framework (ZnCo-ZIF) as precursor. Due to the crystalline similarity between Zn-ZIF and Co-ZIF, Zn and Co can be uniformly distributed in the ZnCo-ZIF precusor, leading to a uniform distribution of the final nanosized ZnS/CoS heterostructures within NCHTs networks. Therefore, the aggregation of ZnS/CoS heterostructures can be effectively suppressed, resulting in a higher utilization of active materials and improved electrochemical performance. Furthermore, the interconnected NCHTs endow ZnS/CoS-NCHTs with significantly enhanced electronic/ionic conductivity and structural integrity. As a result, the ZnS/CoS-NCHTs exhibits high rate capability and excellent cycling stability, which deliveres high reversible capacities of 1007 mA h g(-1) at 1.0 A g(-1) after 1000 cycles and 803 mA h g(-1) at 5.0 A g(-1) after 2000 cycles, respectively. (C) 2020 Elsevier B.V. All rights reserved.
资助项目	National Natural Science Foundation of China (NSFC)[21805117] ; Natural Science Foundation of Jiangsu Province[BK20181014] ; Natural Science for the Higher Education Institutions of Jiangsu Province[18KJB150015] ; Postgraduate Research & Pracitce Innovation Program of Jiangsu Province[KYCX20_2361] ; Priority Academic Program Development Fund of Jiangsu Higher Education Institutions
WOS研究方向	Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering
语种	英语
出版者	ELSEVIER SCIENCE SA
WOS记录号	WOS:000614114500112
资助机构	National Natural Science Foundation of China (NSFC) ; Natural Science Foundation of Jiangsu Province ; Natural Science for the Higher Education Institutions of Jiangsu Province ; Postgraduate Research & Pracitce Innovation Program of Jiangsu Province ; Priority Academic Program Development Fund of Jiangsu Higher Education Institutions
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/120273]
专题	中国科学院合肥物质科学研究院
通讯作者	Wang, Ying; Zhang, Lei
作者单位	1.Jiangsu Normal Univ, Sch Chem & Mat Sci, Xuzhou 221116, Jiangsu, Peoples R China 2.Chinese Acad Sci, Inst Solid State Phys, Key Lab Mat Phys, POB 1129, Hefei 230031, Peoples R China 3.Chinese Acad Sci, Inst Solid State Phys, Anhui Key Lab Nanomat & Nanotechnol, POB 1129, Hefei 230031, Peoples R China
推荐引用方式 GB/T 7714	Cao, Meng,Liao, Fang,Wang, Qingqing,et al. Rational design of ZnS/CoS heterostructures in three dimensional N-doped CNTs for superior lithium storage[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2021,859.
APA	Cao, Meng.,Liao, Fang.,Wang, Qingqing.,Luo, Wanshu.,Ma, Yinglan.,...&Zhang, Lei.(2021).Rational design of ZnS/CoS heterostructures in three dimensional N-doped CNTs for superior lithium storage.JOURNAL OF ALLOYS AND COMPOUNDS,859.
MLA	Cao, Meng,et al."Rational design of ZnS/CoS heterostructures in three dimensional N-doped CNTs for superior lithium storage".JOURNAL OF ALLOYS AND COMPOUNDS 859(2021).