Structural transformation from single-wall to double-wall carbon nanotube bundles
Structural transformation from single-wall to double-wall carbon nanotube bundles
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DOI：
10.1103/physrevb.68.041405
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发表时间：
2003-07-15
影响因子：
3.7
通讯作者：
Maniwa, Y
中科院分区：
文献类型：
--
作者：
Abe, M;Kataura, H;Maniwa, Y
我们报告了通过 C-60 封装 SWNT（C-60 豆荚）从单壁碳纳米管（SWNT）到双壁碳纳米管（DWNT）的结构转变的 X 射线衍射（XRD）分析。结果表明，起始单壁碳纳米管的束结构在此过程中得以保留。 DWNT 的热膨胀系数与原始 SWNT 相比几乎没有变化。 DWNT 内管和外管之间的管间距为 0.36 +/- 0.01 nm。该间距被证明是由在合成温度下 DWNT 内管和外管之间的乱层约束下 SWNT 直径的离散性决定的。
We report an x-ray diffraction (XRD) analysis of the structural transformation from single-wall carbon nanotubes (SWNTs) to double-wall carbon nanotubes (DWNTs) via C-60-encapsulating SWNTs (C-60 peapods). It was shown that the bundle structure of the starting SWNTs retains on this process. The thermal expansion coefficients of DWNTs hardly changed from the pristine SWNTs. The intertube spacing between inner and outer tubes of DWNTs was obtained as 0.36 +/- 0.01 nm. This spacing was shown to be determined by the discreteness of the SWNT diameter under a turbostratic constraint between the inner and outer tubes of DWNT at synthesis temperatures.