氩离子辐照原始和氟化单壁碳纳米管的比较研究。

A comparative study of argon ion irradiated pristine and fluorinated single-wall carbon nanotubes.

机构信息

Nikolaev Institute of Inorganic Chemistry, Siberian Branch of Russian Academy of Sciences, 630090 Novosibirsk, Russia.

出版信息

J Chem Phys. 2010 Dec 14;133(22):224706. doi: 10.1063/1.3506579.

Abstract

Effect of Ar(+) ion irradiation on the structure of pristine and fluorinated single-wall carbon nanotubes (SWCNTs) was examined using transmission electron microscopy (TEM), Raman, and x-ray photoelectron spectroscopy (XPS). The TEM analysis revealed retention of tubular structures in both irradiated samples while Raman spectroscopy and XPS data indicated a partial destruction of nanotubes and formation of oxygen-containing groups on the nanotube surface. From similarity of electronic states of carbon in the irradiated pristine and fluorinated SWCNTs observed by XPS, it was suggested that defluorination of nanotubes proceeded with breaking of C-F bonds.

摘要

采用透射电子显微镜（TEM）、拉曼光谱和 X 射线光电子能谱（XPS）研究了 Ar(+)离子辐照对原始和氟化单壁碳纳米管（SWCNT）结构的影响。TEM 分析表明，辐照后的样品均保留了管状结构，而拉曼光谱和 XPS 数据表明，纳米管部分被破坏，纳米管表面形成了含氧基团。从 XPS 观察到的辐照后的原始和氟化 SWCNT 中碳的电子态相似，可以推测出纳米管的脱氟过程伴随着 C-F 键的断裂。