一个具有两个封闭端的完美碳纳米管。

A perfect carbon nanotube with two closed ends.

作者信息

Wang Xianbao, Liu Yunqi, Zhu Daoben

机构信息

Center for Molecular Science, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080, People's Republic of China.

出版信息

J Nanosci Nanotechnol. 2002 Feb;2(1):33-5. doi: 10.1166/jnn.2002.080.

DOI:10.1166/jnn.2002.080

PMID:12908316

Abstract

A perfect carbon nanotube with two closed ends consisting of graphitized carbon was experimentally observed. The large carbon nanotube, with a diameter of 187 nm and a length of 1.2 microns, was synthesized by pyrolysis of iron(II) phthalocyanine (FePc) under an Ar/NH3 flow at 900 degrees C on a nickel substrate. The structure and composition of the nanotube were determined by high-resolution transmission electron microscopy and electron energy loss spectroscopy. The carbon nanotube seems to grow spontaneously by some autocatalytic process.

摘要

实验观察到一种具有两个由石墨化碳构成的封闭端的完美碳纳米管。这种直径为187纳米、长度为1.2微米的大型碳纳米管是通过在900摄氏度的氩气/氨气气流下，在镍基底上热解铁（II）酞菁（FePc）合成的。通过高分辨率透射电子显微镜和电子能量损失谱确定了纳米管的结构和组成。这种碳纳米管似乎是通过某种自催化过程自发生长的。