Ballesteros Belén, Tobias Gerard, Shao Lidong, Pellicer Eva, Nogués Josep, Mendoza Ernest, Green Malcolm L H
Inorganic Chemistry Laboratory, University of Oxford, United Kingdom.
Small. 2008 Sep;4(9):1501-6. doi: 10.1002/smll.200701283.
Purification and shortening of single-walled carbon nanotubes (SWNTs) is carried out by treatment with steam. During the steam purification the graphitic shells coating the catalytic metal particles are removed. Consequently, the exposed catalytic particles can be easily dissolved by treatment with hydrochloric acid. No damage to the carbon nanotube tubular structure is observed, even after prolonged treatment with steam. Samples are characterized by HRTEM, TGA, magnetic measurements, Raman spectroscopy, AFM, and XPS.
通过蒸汽处理对单壁碳纳米管（SWNTs）进行纯化和缩短。在蒸汽纯化过程中，包覆催化金属颗粒的石墨壳被去除。因此，通过用盐酸处理，暴露的催化颗粒可以很容易地溶解。即使经过长时间的蒸汽处理，也未观察到碳纳米管管状结构受到损坏。通过高分辨率透射电子显微镜（HRTEM）、热重分析（TGA）、磁性测量、拉曼光谱、原子力显微镜（AFM）和X射线光电子能谱（XPS）对样品进行表征。
