Atomic-Scale Clarification of Structural Transition of MoS2 upon Sodium Intercalation

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	Atomic-Scale Clarification of Structural Transition of MoS2 upon Sodium Intercalation
	Wang, XF ; Shen, X ; Wang, ZX ; Yu, RC ; Chen, LQ
刊名	ACS NANO
	2014
卷号	8 期号:11 页码:11394
关键词	layered compounds molybdenum disulfide intercalation phase transition sodium ion battery
ISSN号	1936-0851
通讯作者	Wang, ZX (reprint author), Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, Key Lab Renewable Energy,Beijing Key Lab New Ener, POB 603, Beijing 100190, Peoples R China.
中文摘要	Two-dimensional (2D) transition-metal dichalcogenides hold enormous potential for applications in electronic and optoelectronic devices. Their distinctive electronic and chemical properties are closely related to the structure and intercalation chemistry. Herein, the controversial phase transition from semiconductive 2H to metallic 1T phase and occupancy of the intercalated sodium (Na) upon electrochemical Na intercalation into MoS2 are clarified at the atomic scale by aberration-corrected scanning transmission electron microscope. In addition, a series of other complicated phase transitions along with lattice distortion, structural modulation, and even irreversible structural decomposition are recognized in MoS2 depending on the content of Na ion intercalation. It is shown that x = 1.5 in NaxMoS2 is a critical point for the reversibility of the structural evolution. Our findings enrich the understanding of the phase transitions and intercalation chemistry of the MoS2 and shed light on future material design and applications.
资助信息	National Natural Science Foundation of China (NSFC) [51372268]; National 973 Program of China [2015CB251100, 2012CB932302]
语种	英语
公开日期	2015-04-14
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/58788]
专题	物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文
推荐引用方式 GB/T 7714	Wang, XF,Shen, X,Wang, ZX,et al. Atomic-Scale Clarification of Structural Transition of MoS2 upon Sodium Intercalation[J]. ACS NANO,2014,8(11):11394.
APA	Wang, XF,Shen, X,Wang, ZX,Yu, RC,&Chen, LQ.(2014).Atomic-Scale Clarification of Structural Transition of MoS2 upon Sodium Intercalation.ACS NANO,8(11),11394.
MLA	Wang, XF,et al."Atomic-Scale Clarification of Structural Transition of MoS2 upon Sodium Intercalation".ACS NANO 8.11(2014):11394.