Controlling the growth of vertically oriented single-walled carbon nanotubes by varying the density of Co-Mo catalyst particles

被引:89
作者
Zhang, L [1 ]
Tan, YQ [1 ]
Resasco, DE [1 ]
机构
[1] Univ Oklahoma, Sch Chem Biochem & Mat Engn, Norman, OK 73019 USA
基金
美国国家科学基金会;
关键词
D O I
10.1016/j.cplett.2006.02.063
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 simple method to grow vertically aligned arrays of various forms of single-walled carbon nanotubes (V-SWNT) is reported. CO disproportionation on Co-Mo bimetallic catalysts has been used in the synthesis. Resonant Raman and transmission electron microscope (TEM) were employed to characterize the as-produced SWNTs, which display a high purity and very low concentration of other carbon forms. Combination of AFM and SEM gives evidence for the crucial role of the surface distribution of the bimetallic (Co/Mo) catalyst particles on the substrate during the growth of SWNT. A novel growth mechanism is discussed. (c) 2006 Elsevier B.V. All rights reserved.
引用
收藏
页码:198 / 203
页数:6
相关论文
共 28 条
[1]   Narrow (n,m)-distribution of single-walled carbon nanotubes grown using a solid supported catalyst [J].
Bachilo, SM ;
Balzano, L ;
Herrera, JE ;
Pompeo, F ;
Resasco, DE ;
Weisman, RB .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2003, 125 (37) :11186-11187
[2]  
BALBUENA PB, IN PRESS J NANOSCI N
[3]   Side-wall functionalization of single-walled carbon nanotubes with 4-hydroxymethylaniline followed by polymerization of ε-caprolactone [J].
Buffa, F ;
Hu, H ;
Resasco, DE .
MACROMOLECULES, 2005, 38 (20) :8258-8263
[4]   Ultrahigh-density nanotransistors by using selectively grown vertical carbon nanotubes [J].
Choi, WB ;
Chu, JU ;
Jeong, KS ;
Bae, EJ ;
Lee, JW ;
Kim, JJ ;
Lee, JO .
APPLIED PHYSICS LETTERS, 2001, 79 (22) :3696-3698
[5]   Controlling the diameter, growth rate, and density of vertically aligned carbon nanotubes synthesized by microwave plasma-enhanced chemical vapor deposition [J].
Choi, YC ;
Shin, YM ;
Lee, YH ;
Lee, BS ;
Park, GS ;
Choi, WB ;
Lee, NS ;
Kim, JM .
APPLIED PHYSICS LETTERS, 2000, 76 (17) :2367-2369
[6]   Light-emitting polymers and carbon nanotube electron emitters for optoelectronic displays [J].
Dai, LM .
SMART MATERIALS AND STRUCTURES, 2002, 11 (05) :645-651
[7]   Dependence of SWNT growth mechanism on temperature and catalyst particle size:: Bulk versus surface diffusion [J].
Ding, F ;
Rosén, A ;
Bolton, K .
CARBON, 2005, 43 (10) :2215-2217
[8]   Nucleation and growth of single-walled carbon nanotubes:: A molecular dynamics study [J].
Ding, F ;
Bolton, K ;
Rosén, A .
JOURNAL OF PHYSICAL CHEMISTRY B, 2004, 108 (45) :17369-17377
[9]   Phonons in carbon nanotubes [J].
Dresselhaus, MS ;
Eklund, PC .
ADVANCES IN PHYSICS, 2000, 49 (06) :705-814
[10]   Magnetically aligned single wall carbon nanotube films: Preferred orientation and anisotropic transport properties [J].
Fischer, JE ;
Zhou, W ;
Vavro, J ;
Llaguno, MC ;
Guthy, C ;
Haggenmueller, R ;
Casavant, MJ ;
Walters, DE ;
Smalley, RE .
JOURNAL OF APPLIED PHYSICS, 2003, 93 (04) :2157-2163