Controllable growth of single wall carbon nanotubes by pyrolizing acetylene on the floating iron catalysts

被引:65
作者
Ci, LJ [1 ]
Xie, SS [1 ]
Tang, DS [1 ]
Yan, XQ [1 ]
Li, YB [1 ]
Liu, ZQ [1 ]
Zou, XP [1 ]
Zhou, WY [1 ]
Wang, G [1 ]
机构
[1] Chinese Acad Sci, Inst Phys, Ctr Condensed Matter Phys, Grp 412, Beijing 100080, 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(01)01098-3
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
Single wall carbon nanotubes (SWNTs) without amorphous carbon coating were prepared by thermally decomposing acetylene (C2H2) at the temperature range 750-1200 degreesC in a floating iron catalyst system. The C2H2 partial pressure was controlled to make a carbon supply limiting growth of SWNTs. The higher reaction temperature above 1100 degreesC seemed not to favor the SWNT production due to the quick thermal decomposition of C2H2. (C) 2001 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:191 / 195
页数:5
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