Abstract—

A method has been demonstrated for doping carbon nanotubes (CNTs) with nitrogen during synthesis in an acetylene + ammonia atmosphere at different temperatures in the range 550–750°C, and conditions have been found for effective nitrogen doping of CNTs depending on synthesis temperature. The concentrations of various elements in the synthesized CNTs have been determined by X-ray photoelectron spectroscopy. Raman measurements with the use of a Raman microscope have made it possible to follow variations in the relative intensities of the G and D bands as functions of nitrogen dopant concentration in the CNTs. We have detected strong Raman overtone combination satellites whose parameters depend on the structural perfection of the synthesized CNTs.

中文翻译：

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流动的乙炔和氨气中合成的碳纳米管的氮掺杂

摘要—

在乙炔+氨气气氛中，在550-750°C范围内的不同温度下，在合成过程中用氮掺杂碳纳米管（CNT）的方法得到了证明，并且发现了根据合成温度有效掺杂CNT的条件。合成的CNT中各种元素的浓度已经通过X射线光电子能谱法测定。通过使用拉曼显微镜进行拉曼测量，可以追踪G和D谱带的相对强度随CNT中氮掺杂剂浓度变化的变化。我们已经检测到强拉曼泛音组合卫星，其参数取决于合成CNT的结构完善性。