Activated carbon catalyzing the formation of carbon nanotubes

被引：8
|
作者：
Song, Jinling [1 ,2 ]
Feng, Shouai [1 ]
Zhao, Jianghong [1 ]
Zheng, Jianfeng [1 ]
Zhu, Zhenping [1 ]
机构：
[1] Chinese Acad Sci, Inst Coal Chem, State Key Lab Coal Convers, Taiyuan 030001, Shanxi, Peoples R China
[2] Inner Mongolia Univ Sci & Technol, Sch Rare Earth, Inner Mongolia 014010, Peoples R China
来源：
MATERIALS RESEARCH BULLETIN | 2010年 / 45卷 / 09期
关键词：
Amorphous materials; Nanostructures; Vapor deposition; Electron microscopy; CATALYTIC GROWTH; SINGLE; MECHANISM; SIZE;
D O I：
10.1016/j.materresbull.2010.05.010
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Activated carbon (AC), a common carbon material, is employed as catalyst to synthesize carbon nanotubes (CNTs) through chemical vapor deposition (CVD) and detonation-assisted CVD methods. The results show AC can effectively catalyze CNT formation. From the microscopic observations on morphologies and structures of the formed intermediates, it is found that carbon-catalyzed CNT formation follows particle-wire-tube stepwise evolution mechanism, in which carbon nanoparticles first assemble into wire-like nanostructures, then evolve into nanotubes via particle-particle coalescence and structural crystallization. (C) 2010 Elsevier Ltd. All rights reserved.
引用
收藏
页码：1234 / 1239
页数：6
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