Local electronic structure of lithium absorbed in carbon nanotubes

被引：4
|
作者：
Liu, Y [1 ]
Yukawa, H [1 ]
Morinaga, M [1 ]
机构：
[1] Nagoya Univ, Grad Sch Engn, Dept Mat Sci & Engn, Chikusa Ku, Nagoya, Aichi 4648603, Japan
来源：
MOLECULAR CRYSTALS AND LIQUID CRYSTALS | 2002年 / 387卷
关键词：
carbon nanotube; Li absorption; anode material; electronic structure;
D O I：
10.1080/10587250290113619
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The Li absorption energies of single-walled armchair (6,6) and zigzag (12,0) carbon nanotubes are investigated by the first-principles molecular orbital methods. It is found that Li can be absorbed inside as well as outside these carbon nanotubes with the approximately similar absorption energy. It is still energetically favorable for Li to be absorbed both inside and outside carbon nanotubes. Furthermore, it is shown that the Li absorption weakens the covalent C-C bond, but instead forms the ionic Li-C bond which works to stabilize the Li carbon nanotube material.
引用
收藏
页码：323 / 329
页数：7
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