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Non-catalytic CVD preparation of carbon spheres with a specific size

REDVC 添加于 2011-9-2 15:55 | 3030 次阅读 | 0 个评论

作者
Qian H
摘要
A simple chemical vapor deposition method was used to prepare carbon spheres (CPS) from toluene without any catalysts. The diameters of CPS are in a range of 60 nm to 1 μm and can be controlled by changing the composition and flow rate of a mixture gas that was used as the carrier gas. The carbon spheres have been systematically studied by scanning electron microscopy (SEM), element analysis, energy dispersive X-rays spectroscopy (EDX), X-ray diffraction (XRD) and ultra-violet laser Raman spectroscopy. The SEM examination shows that these carbon spheres have a ball-like and chain-like morphology, all of which have smooth surfaces and a quite uniform diameter. The element analysis reveals that the carbon content of the spheres is over 97.0% while the EDX analysis shows that more than 92.0% of the carbon spheres is carbon. The XRD and UV-Raman studies reveal that they are not highly graphitized carbons.
详细资料
- 文献种类: Journal Article
- 期刊名称: Carbon
- 期刊缩写: Carbon
- 期卷页: 2004年第42卷第4期 761-766页
- ISBN: 0008-6223
学科领域工程技术 » 材料科学
标签

碳微球 China 流化床大气压高温甲苯无催化剂
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Non-catalytic CVD preparation of carbon spheres with a specific size
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