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Study of Surface Morphology and Alignment of MWCNTs Grown by Chemical Vapor Deposition

机译：化学气相沉积种植的表面形态及对准MWCNT的研究

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In this research work, Multiwalled Carbon Nanotubes (MWCNTs) have been synthesized successfully by using floating catalytic chemical vapor deposition (FCCVD) method. Different ferrocene amounts (0.1, 0.125 and 0.15 g) were used as catalyst and ethylene was used as a carbon precursor at reaction temperature of 800°C. Characterization of the grown MWCNTs was carried out by using scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The obtained data showed that the catalyst weight affects the nanotubes diameter, alignment, crystallinity and growth significantly, whereas negligible influence was noticed on CNTs forest length. The dense, uniform and meadow like patterns of grown CNTs were observed for 0.15 g ferrocene. The average diameter of the grown CNTs was found in the range of 32 to 75 nm. Close inspection of the TEM images also confirmed the defects in some of the grown CNTs, where few black spots were evident in CNTs structure.
机译：在该研究中，通过使用浮催化化学气相沉积（FCCVD）方法成功地合成了多壁碳纳米管（MWCNT）。用作催化剂的不同的二茂铁量（0.1,0.1,0.125和0.15g）用作乙烯，在800℃的反应温度下使用碳前体。通过使用扫描电子显微镜（SEM）和透射电子显微镜（TEM）来进行生长的MWNTS的表征。所获得的数据表明，催化剂重量显着影响纳米管直径，取向，结晶度和生长，而在CNT林长度上忽略了可忽略的影响。观察到0.15g二茂烯的致密，均匀和草甸类似的生长CNT模式。生长的CNT的平均直径在32至75nm的范围内。关闭TEM图像的检查还确认了一些生长的CNT中的缺陷，其中很少有黑点在CNTS结构中是明显的。

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