Template-confined growth and structural characterization of amorphous carbon nanotubes

被引:36
作者
Yang, Y
Hu, Z [1 ]
Wu, Q
Lü, YN
Wang, XZ
Chen, Y
机构
[1] Nanjing Univ, Dept Chem, Key Lab Mesoscop Chem, Nanjing 210093, Peoples R China
[2] Nanjing Univ, Dept Chem, Jiangsu Prov Lab NanoTechnol, Nanjing 210093, Peoples R China
[3] Nanjing Technol Univ, Coll Mat Sci & Engn, Nanjing 210009, Peoples R China
基金
中国国家自然科学基金;
关键词
D O I
10.1016/S0009-2614(03)00651-1
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Porous anodic aluminum oxide templates with different channel structures have been synthesized and used to grow carbon nanotubes (CNTs) through the pyrolysis of ethylene at 700 degreesC. Aligned CNT arrays, Y-branched as well as novel dendriform. CNTs have been obtained and well characterized by scanning electron microscopy and high-resolution transmission electron microscopy. The amorphous structure, irregular and quasi-hemispherical ends as well as the branched junction have been revealed in detail. The disordered structure of the carbon nanotubes was assigned to the lattice mismatch between alumina and carbon species. A growth mechanism mainly based on the space-limited and self-catalytic functions of template channels has been proposed accordingly. (C) 2003 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:580 / 585
页数:6
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