Jones Craig P, Jurkschat Kerstin, Crossley Alison, Compton Richard G, Riehl Bill Logan, Banks Craig E
Chemistry, School of Biomedical and Natural Sciences, Nottingham Trent University, Clifton Campus, Nottingham, United Kingdom.
Langmuir. 2007 Aug 28;23(18):9501-4. doi: 10.1021/la701522p. Epub 2007 Jul 26.
Carbon nanotubes, even after extensive posttreatment, contain metallic impurities which may produce misleading results, giving rise to false claims of the properties of carbon nanotubes. To overcome this, we report on high-purity catalyst-free multiwalled carbon nanotubes which have been explored with transmission electron microscopy, X-ray photoelectron spectroscopy, and cyclic voltammetry using the electrochemical oxidations of hydrazine and potassium ferrocyanide. The multiwalled carbon nanotubes are approximately 150 nm in length and consist of 6-10 graphite layers. Due to the definitive absence of metallic impurities, experimentalists using these carbon nanotubes can avoid potential misinterpretations of their results.
即使经过广泛的后处理，碳纳米管仍含有金属杂质，这可能会产生误导性结果，导致对碳纳米管性能的错误论断。为了克服这一问题，我们报道了高纯度无催化剂多壁碳纳米管，我们使用肼和亚铁氰化钾的电化学氧化反应，通过透射电子显微镜、X射线光电子能谱和循环伏安法对其进行了研究。这些多壁碳纳米管长度约为150纳米，由6至10层石墨层组成。由于绝对不存在金属杂质，使用这些碳纳米管的实验人员可以避免对其结果产生潜在的误解。
