物理化学学报 >> 1995, Vol. 11 >> Issue (07): 632-635.doi: 10.3866/PKU.WHXB19950713

研究论文 上一篇    下一篇

纳米管束的合成及结构

李越,周锡煌,金朝霞,顾镇南,刘真泉,冯孙齐   

  1. 北京大学化学系|北京 100871|北京大学物理系|北京 100871
  • 收稿日期:1994-07-02 修回日期:1994-11-20 发布日期:1995-07-15
  • 通讯作者: 顾镇南

Synthesis and Structure of Graphitic Buckybundles

Li Yue,Zhou Xi-Huang,Jin Zhao-Xia,Gu Zhen-Nan,Liu Zhen-Quan,Feng Sun-Qi   

  1. Department of Chemistry,Peking University,Beijing 100871|Department of Physics,Peking University,Beijing 100871
  • Received:1994-07-02 Revised:1994-11-20 Published:1995-07-15
  • Contact: Gu Zhen-Nan

摘要:

用电弧法制备出纳米管及纳米管束,并用高分辨电镜观察其结构.观察到的纳米管管子中空,管壁平行,间距0.34nm,端部封闭;还观察到单层纳米管,洋葱球以及内包晶核的洋葱球结构,纳米管束微结构为纳米管.用扫描电镜观察,为明显的针状晶须,定向排列,晶须互相平行,平行于电场方向生长,晶须直径0.2~0.6mm,长度3~8mm.生成纳米管束的原因可能是由于掺杂碳棒中的杂质提供了晶须生长的晶核.

关键词: 纳米管, 纳米管束, 富勒烯

Abstract:

The synthesis and the structure of graphitic nanotubes and buckybundles were studied by DC arc- discharge method and high resolution electron microscope respectively. The nanotubes are concentric tubings, 0.34nm between the consecutive carbon-layers in the nanotube walls and closed at the ends. The single-layered nanotubes, graphitic onion and the onion-shaped structure encapsulated with crystal nuclei were also observed. The microscopic structure of buckybundles is the same as that of nanotubes. Micrograph shows that the buckybundles are whiskers 0.2-0.6mm in diameter and 3-8mm in length, and orient in the direction of the electric field. The formation of buckybundles is supposed to be induced by crystal nuclei due to the presence of impurities in the doped graphitic rods.

Key words: Nanotube, Buckybundle, Fullerene