Synthesis and structural characterization of alkali-metal intercalated single-walled carbon nanotubes

被引：10

作者：

Iwai, Y. ^{[1
]}

Hirose, M. ^{[1
]}

Kano, R. ^{[1
]}

Kawasaki, S. ^{[1
]}

Hattori, Y. ^{[2
]}

Takahashi, K. ^{[3
]}

机构：

[1] Nagoya Inst Technol, Showa Ku, Nagoya, Aichi 4668555, Japan

[2] Shinshu Univ, Ueda, Nagano 3868567, Japan

[3] Inst Res & Innovat, Kashiwa, Chiba 2770861, Japan

来源：

JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS | 2008年 / 69卷 / 5-6期

关键词：

nanostructures; X-ray diffraction; Raman spectroscopy; crystal structure;

D O I：

10.1016/j.jpcs.2007.10.035

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

In order to investigate the mechanism of alkali-metal insertion into single-walled carbon nanotubes (SWCNTs), Raman and XRD measurements of several alkali-metals (Li, K) and open-end, closed-end SWCNTs compounds have been performed. By doping alkali-metal into the open-end SWCNTs, firstly the Raman G-band shifts towards the higher energy side due to the stress induced by the alkali-metal insertion between the tubes, and then shows a downshift mainly caused by the effect of the charge transfer from the alkali-metals inserted inside the tubes, which leads to fewer structural fluctuations than the metals between the tubes. (C) 2007 Elsevier Ltd. All rights reserved.

引用

页码：1199 / 1202

页数：4

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