Abstract

The structures of carbon nanotubes synthesized by catalytic CVD in the same reactor using different carbon-containing precursors and a FeCl₃ catalyst have been compared. Methane and acetylene were applied as carbon-containing precursors. Iron chloride has been applied on silicon substrates by drying a drop of its water solution on the silicon surface. The influence of temperature and pressure variations on the synthesis process has been studied. Obtained samples have been examined by the methods of scanning electron microscopy and Raman spectroscopy. A nonlinear relationship between synthesis temperature and defect concentration in synthesized carbon nanotubes has been found. The influence of the type of carbon-containing precursor on the carbon nanotube morphology has been demonstrated.

中文翻译：

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FeCl 3催化剂存在下由甲烷和乙炔合成碳纳米管的特性

摘要

比较了在同一反应器中使用不同的含碳前体和FeCl ₃催化剂通过催化CVD合成的碳纳米管的结构。甲烷和乙炔用作含碳的前体。氯化铁已通过干燥在硅表面上的一滴水溶液而涂在硅基底上。研究了温度和压力变化对合成过程的影响。通过扫描电子显微镜和拉曼光谱法检查获得的样品。已经发现合成温度与合成碳纳米管中缺陷浓度之间的非线性关系。已经证明了含碳前体的类型对碳纳米管形态的影响。