Abundance of encapsulated C60 in single-wall carbon nanotubes

被引:156
作者
Burteaux, B
Claye, A
Smith, BW
Monthioux, M
Luzzi, DE
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
关键词
D O I
10.1016/S0009-2614(99)00720-4
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Spherical objects (presumably C-60 molecules) have been observed inside similar to 14 Angstrom diameter single-wall carbon nanotubes. We applied acid etching to access the interior of the tubes, and leaching in toluene to dissolve liberated C-60. Quantitative UV-Vis of the 335 nm C-60 transition establishes beyond doubt that these are indeed C-60, and that their relative abundance in a macroscopic sample can be as high as 5.4% (expressed as the filled fraction of total tube length). Variations in abundance with growth and processing conditions provide clues as to how they form. (C) 1999 Elsevier Science B.V. All rights reserved.
引用
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页码:21 / 24
页数:4
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