一维金纳米线的自组装研究

Investigation of One-dimensional Gold Nanowire Self-assembling

以管径为20～40nm的多壁碳纳米管为模板,在经巯基修饰的碳纳米管表面定向沉积一薄层纳米金微粒,从而制得了一维金纳米线,并对纳米金线的自组装原理进行了研究。同时用XPS和TEM对所获得的碳基金纳米复合线的化学组成及微观结构进行了分析和表征。实验表明,纳米金微粒可在接枝巯基的碳纳米管表面自组装形成结构较好的纳米线。

One-dimensional gold nanowires were prepared by deposition of gold nanoparticles onto the surface of carbon nanotubes （CNTs）. The CNTs template with average diameter of 20- 40nm was functionalized by mercapto groups in advance. The self-assembling principle of gold nanowires was investigated in this work. These functionalized CNTs were analyzed by XPS and these gold nanowires were characterized by TEM. The experimental results show that gold nanowires can be easily formed by gold nanoparticles self-assembling on the surface of CNTs inarched with mercapto grouns.