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	Effect of chemical treatment on electrochemical intercalation of lithium ion into MWNTs
	Lin Ke-zhi ; Wang Xiao-lin ; Xu Yan-hui
	2010-05-07 ; 2010-05-07
关键词	Practical Experimental/ carbon nanotubes electrochemical electrodes Fourier transform spectra infrared spectra intercalation compounds lithium compounds secondary cells/ chemical treatment electrochemical intercalation lithium ion battery MWNT electrode electrochemical lithiation performance multiwalled carbon nanotubes pseudo-graphite layers FT-IR SEI membrane Li Li/sub 2/CO/sub 3// A8630F Secondary cells A8245 Electrochemistry and electrophoresis A8120V Preparation of fullerenes and fullerene-related materials, intercalation compounds, and diamond B8410E Secondary cells/ Li/int Li/el Li2CO3/ss CO3/ss Li2/ss Li/ss O3/ss C/ss O/ss
中文摘要	In order to improve the electrochemical lithiation performance of multi-walled carbon nanotubes (MWNTs), the chemical treatment was carried out in terms of the following processes: first soaked in acid mixture, then heated in high temperature, at last soaked in solution of Li/sub 2/CO/sub 3/. The investigations of structure and electrochemical lithiation of MWNTs and the treated MWNTs were carried out. The electrochemical lithiation capacities of the treated MWNTs were increased by about 45%-85% compared to the original MWNTs. The reason may be that the distance between the pseudo-graphite layers in MWNTs were enlarged by the insertion and de-insertion of H/sub 2/SO/sub 4 / molecular into pseudo-graphite layers so that the resistance of Li/sup +/ intercalated into MWNTs was weakened. The carbonyl group was observed at the treated MWNTs by FT-IR. It is noted that the carbonyl group was much helpful in forming SEI membrane at the surface of MWNTs electrode.
语种	中文 ; 中文
出版者	Tianjin Inst. Power Sources ; China
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/17431]
专题	清华大学
推荐引用方式 GB/T 7714	Lin Ke-zhi,Wang Xiao-lin,Xu Yan-hui. Effect of chemical treatment on electrochemical intercalation of lithium ion into MWNTs[J],2010, 2010.
APA	Lin Ke-zhi,Wang Xiao-lin,&Xu Yan-hui.(2010).Effect of chemical treatment on electrochemical intercalation of lithium ion into MWNTs..
MLA	Lin Ke-zhi,et al."Effect of chemical treatment on electrochemical intercalation of lithium ion into MWNTs".(2010).

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