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本文利用化学气相沉积(CVD)法,以乙烯为碳源气体,二茂铁为催化剂,在二氧化硅上制备出一系列碳纳米管,并通过拉曼光谱和扫描电子显微镜(SEM)对其形貌、结构和组分进行表征,分析反应温度对碳纳米管的影响。研究发现:当反应温度为860℃时,有均匀的碳纳米管薄膜生成,其管径和长度分别达到104 nm和95μm,同时结构缺陷少,非碳管杂质较少,纯度较高。
In this paper, a series of carbon nanotubes were prepared on silica by chemical vapor deposition (CVD) method using ethylene as a carbon source gas and ferrocene as a catalyst, and their properties were characterized by Raman spectroscopy and scanning electron microscopy (SEM) Morphology, structure and composition were characterized, the impact of reaction temperature on the carbon nanotubes. The results show that when the reaction temperature is 860 ℃, a uniform thin film of carbon nanotubes is formed with a diameter and length of 104 nm and 95 μm, respectively. Meanwhile, the structure defects are less, the non-carbon tube impurities are less and the purity is higher.