Synthesis of carbon nanotube arrays using ethanol in porous anodic aluminum oxide template

被引：7
|
作者：
Yu, GJ [1 ]
Wang, S [1 ]
Gong, JL [1 ]
Zhu, DZ [1 ]
He, SX [1 ]
Li, YL [1 ]
Zhu, ZY [1 ]
机构：
[1] Chinese Acad Sci, Grad Sch, Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China
来源：
CHINESE SCIENCE BULLETIN | 2005年 / 50卷 / 11期
基金：
中国国家自然科学基金;
关键词：
ethanol; porous anodic aluminum oxide template; chemical vapor deposition; carbon nanotube arrays; OH radical;
D O I：
10.1360/982004-68
中图分类号：
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
Carbon nanotube (CNT) arrays confined by porous anodic aluminum oxide (AAO) template were synthesized using ethanol as reactant carbon source at low pressure. Images by scanning electron microscope (SEM) and low magnification transmission electron microscopy (TEM) show that these CNTs have highly uniform outer diameter and length, absolutely controlled by the diameter and depth of nano-channel arrays of the AAO. High resolution transmission electron microscopy (HRTEM) imaging indicates that the graphitization of the CNT walls is better than the results reported on this kind of template-based CNT arrays, although it is not so good as that of multiwalled carbon nanotubes (MWCNTs) synthesized by catalysis. CNTs synthesized using acetylene as reactant gas show much less graphitization than those prepared using ethanol by comparing the results of HRTEM and Raman spectroscopy. The etching effects of decomposed OH radicals on the amorphous carbon and the roughness of AAO nano-channel arrays on the CNTs growth were employed to explain the graphitization and growth of the CNTs.
引用
收藏
页码：1097 / 1100
页数：4
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