High Reversible Lithium Storage Capacity and Structural Changes of Fe2O3 Nanoparticles Confined inside Carbon Nanotubes

IMR OpenIR

	High Reversible Lithium Storage Capacity and Structural Changes of Fe2O3 Nanoparticles Confined inside Carbon Nanotubes
	Yu, Wan-Jing; Zhang, Lili; Hou, Peng-Xiang; Li, Feng; Liu, Chang; Cheng, Hui-Ming; cliu@imr.ac.cn; cheng@imr.ac.cn
	2016
发表期刊	ADVANCED ENERGY MATERIALS
ISSN	1614-6832
卷号	6 期号:3 页码:-
摘要	The structural evolution of electrochemically prelithiated Fe2O3 nanoparticles confined in carbon nanotubes (CNTs) during lithium insertion/extraction is studied by in situ transmission electron microscopy. It is found that the aggregation and coarsening of Fe core-containing Li2O (Fe@Li2O) nanograins formed during the charge process are prevented by the spatial restriction of the CNTs. A high reversible capacity of 2071 mA h g(-1) for the encapsulated Fe2O3 nanoparticles in CNTs is demonstrated when the material is used as the anode of lithium ion batteries. This is the highest reversible capacity ever reported for an Fe2O3 electrode. The significantly improved lithium storage capacity of the Fe2O3 nanoparticles is attributed to the extra lithium storage due to the enhanced interfacial lithium storage and reversible reaction of LiOH to form LiH and solid-electrolyte-interphase conversion originating from the nanoconfinement of CNTs as well as the very small particle size of the Fe@Li2O nanograins and their good electrical contact with CNTs.
部门归属	[yu, wan-jing ; zhang, lili ; hou, peng-xiang ; li, feng ; liu, chang ; cheng, hui-ming] chinese acad sci, inst met res, shenyang natl lab mat sci, 72 wenhua rd, shenyang 110016, peoples r china
关键词	Carbon Nanotubes Confinement Effects Fe2o3 Nanoparticles In Situ Tem Lithium-ion Batteries
资助者	Ministry of Science and Technology of China [2011CB932601, 2011CB932604]; National Natural Science Foundation of China [51102242, 51172241, 51221264, 51272257]; Chinese Academy of Sciences [KGZD-EW-T06]
收录类别	sci
语种	英语
WOS记录号	WOS:000370004900010
引用统计	被引频次：119[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/74883
专题	中国科学院金属研究所
通讯作者	cliu@imr.ac.cn; cheng@imr.ac.cn
推荐引用方式 GB/T 7714	Yu, Wan-Jing,Zhang, Lili,Hou, Peng-Xiang,et al. High Reversible Lithium Storage Capacity and Structural Changes of Fe2O3 Nanoparticles Confined inside Carbon Nanotubes[J]. ADVANCED ENERGY MATERIALS,2016,6(3):-.
APA	Yu, Wan-Jing.,Zhang, Lili.,Hou, Peng-Xiang.,Li, Feng.,Liu, Chang.,...&cheng@imr.ac.cn.(2016).High Reversible Lithium Storage Capacity and Structural Changes of Fe2O3 Nanoparticles Confined inside Carbon Nanotubes.ADVANCED ENERGY MATERIALS,6(3),-.
MLA	Yu, Wan-Jing,et al."High Reversible Lithium Storage Capacity and Structural Changes of Fe2O3 Nanoparticles Confined inside Carbon Nanotubes".ADVANCED ENERGY MATERIALS 6.3(2016):-.