Comparison of the rate capability of nanostructured amorphous and anatase TiO2 for lithium insertion using anodic TiO2 nanotube arrays

doi:10.1088/0957-4484/20/22/225701

IMR OpenIR

	Comparison of the rate capability of nanostructured amorphous and anatase TiO2 for lithium insertion using anodic TiO2 nanotube arrays
	Fang, Hai-Tao 1; Liu, Min 2; Wang, Da-Wei 2; Sun, Tao 1; Guan, Dong-Sheng 1; Li, Feng 2; Zhou, Jigang 3; Sham, Tsun-Kong 3; Cheng, Hui-Ming 2
通讯作者	Fang, Hai-Tao(htfang@hit.edu.cn)
	2009-06-03
发表期刊	NANOTECHNOLOGY
ISSN	0957-4484
卷号	20 期号:22 页码:7
摘要	Nanostructured amorphous and anatase TiO2 are both considered as high rate Li-insertion/extraction electrode materials. To clarify which phase is more desirable for lithium ion batteries with both high power and high density, we compare the electrochemical properties of anatase and amorphous TiO2 by using anodic TiO2 nanotube arrays (ATNTAs) as electrodes. With the same morphological features, the rate capacity of nanostructured amorphous TiO2 is higher than that of nanostructured anatase TiO2 due to the higher Li-diffusion coefficient of amorphous TiO2 as proved by the electrochemical impedance spectra of an amorphous and an anatase ATNTA electrode. The electrochemical impedance spectra also prove that the electronic conductivity of amorphous TiO2 is lower than that of anatase TiO2. These results are helpful in the structural and componential design of all TiO2 mesoporous structures as anode material in lithium ion batteries. Moreover, all the advantages of the amorphous ATNTA electrode including high rate capacity, desirable cycling performance and the simplicity of its fabrication process indicate that amorphous ATNTA is potentially useful as the anode for lithium ion batteries with both high power and high energy density.
资助者	National Science Foundation of China ; Science Foundation of Heilongjiang Province ; Centre for Chemical Physics (University of Western Ontario, Canada)
DOI	10.1088/0957-4484/20/22/225701
收录类别	SCI
语种	英语
资助项目	National Science Foundation of China[50872026] ; National Science Foundation of China[50602011] ; Science Foundation of Heilongjiang Province[E200517] ; Centre for Chemical Physics (University of Western Ontario, Canada)
WOS研究方向	Science & Technology - Other Topics ; Materials Science ; Physics
WOS类目	Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied
WOS记录号	WOS:000266045200027
出版者	IOP PUBLISHING LTD
引用统计	被引频次：201[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/321006/96650
专题	中国科学院金属研究所
通讯作者	Fang, Hai-Tao
作者单位	1.Harbin Inst Technol, Sch Mat Sci & Engn, Harbin 150001, Peoples R China 2.Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Peoples R China 3.Univ Western Ontario, Dept Chem, London, ON N6A 5B7, Canada
推荐引用方式 GB/T 7714	Fang, Hai-Tao,Liu, Min,Wang, Da-Wei,et al. Comparison of the rate capability of nanostructured amorphous and anatase TiO2 for lithium insertion using anodic TiO2 nanotube arrays[J]. NANOTECHNOLOGY,2009,20(22):7.
APA	Fang, Hai-Tao.,Liu, Min.,Wang, Da-Wei.,Sun, Tao.,Guan, Dong-Sheng.,...&Cheng, Hui-Ming.(2009).Comparison of the rate capability of nanostructured amorphous and anatase TiO2 for lithium insertion using anodic TiO2 nanotube arrays.NANOTECHNOLOGY,20(22),7.
MLA	Fang, Hai-Tao,et al."Comparison of the rate capability of nanostructured amorphous and anatase TiO2 for lithium insertion using anodic TiO2 nanotube arrays".NANOTECHNOLOGY 20.22(2009):7.