Electrochemical production of Sn-filled carbonn anotubes in molten salts
来源期刊：中国有色金属学报(英文版)2004年第3期
论文作者：黄辉 张文魁 李美超 甘永平 马淳安 张孝彬
文章页码：441 - 445
Key words：carbon nanotubes; molten salts; electrolysis; electron microscopy
Abstract: Sn-filled carbon nanotubes(CNTs) were prepared in situ by electrolysis of graphite in molten LiCl/SnCl2mixtures. Transmission electron microscopy(TEM) investigation shows that the as-made products contain abundance of carbon nanotubes and most of them are filled with metal nanoparticles or nanorods. Some nanotubes are even inserted with long continuous nanowires more than several micrometers in length. Selected area electron diffraction(SAED) patterns and energy dispersive X-ray spectroscopy(EDS) of the filled nanotubes confirm the presence of Sn inside the nanotubes. The encapsulated Sn was further identified asβ-Sn with tetragonal structure. Based on the experimental results, a possible growth mechanism of the Sn-filled nanotubes was also discussed.
