Electrochemical doping of single wall carbon nanotubes with lithium

被引：17
|
作者：
Claye, A
Fischer, JE
机构：
[1] Univ Penn, Dept Mat Sci & Engn, Philadelphia, PA 19104 USA
[2] Univ Penn, Res Struct Matter Lab, Philadelphia, PA 19104 USA
来源：
MOLECULAR CRYSTALS AND LIQUID CRYSTALS | 2000年 / 340卷
关键词：
nanotubes; lithium; electrochemistry; doping;
D O I：
10.1080/10587250008025557
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Reversible insertion of Li into purified single wall carbon nanotubes was achieved electrochemically Galvanostatic charge-discharge and cyclic voltammetry indicated that there is no well-defined redox potential for Li insertion or removal in the nanotube lattice. The Li reversible capacity was found to be 460 mA.h/g, significantly higher than the theoretical value for graphite. In-situ X-ray diffraction revealed an irreversible loss of the 2-D triangular lattice upon doping. In-situ resistivity measurements presented a 20-fold decrease in resistance upon doping, reversible upon undoping.
引用
收藏
页码：743 / 748
页数：6
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