Flame synthesis of coiled carbon nanotubes

被引:13
作者
Choudhuri, A [1 ]
Camacho, J [1 ]
Chessa, J [1 ]
机构
[1] Univ Texas, Dept Mech & Ind Engn, Combust Prop & React Engn Lab, El Paso, TX 79968 USA
关键词
flame synthesis; coiled carbon nanotubes; acetylene; turbulence; jet flames;
D O I
10.1080/15363830500538540
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
A flame synthesis technique of coiled carbon nanotubes using acetylene jet flames and iron catalyst is presented. It was found that acetylene flames generate single wall coiled nanotubes within in a narrow pyrolysis zone above the burner for a limited range of fuel flow rates. The corresponding local convective time scale corresponding to the coiled nanotube formation zone is around 0.04 ms. The yield of the coiled carbon nanotubes was further increased by changing the local convective time scale with the addition of controlled turbulence.
引用
收藏
页码:93 / 100
页数:8
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