Correlation between catalyst particle and single-walled carbon nanotube diameters

被引：229

作者：

Nasibulin, AG

Pikhitsa, PV

Jiang, H

Kauppinen, EI ^{[1
]}

机构：

[1] VTT Proc, Aerosol Technol Grp, POB 1602, FIN-02044 Espoo, Finland

[2] Aalto Univ, Ctr New Mat, FIN-02044 Espoo, Finland

[3] Aalto Univ, Dept Engn Math & Phys, FIN-02044 Espoo, Finland

[4] Seoul Natl Univ, Inst Adv Machinery & Design, Natl CRI Ctr Nano Particle Control, Seoul 151742, South Korea

来源：

CARBON | 2005年 / 43卷 / 11期

基金：

芬兰科学院;

关键词：

carbon nanotubes; catalyst support; electron microscopy;

D O I：

10.1016/j.carbon.2005.03.048

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-walled carbon nanotubcs (CNTs) were synthesised at different conditions by a novel aerosol method based on the introduction of pre-formed iron catalyst particles into conditions leading to CNT formation. The results of statistical measurements of individual CNT dimensions based on high-resolution TEM images showed the effects of the residence time and temperature in the reactor. The ratio between catalyst particle and CNT diameters was close to 1.6 and independent of the experimental conditions, thus revealing an astonishing "universality" in the growth process. A proposed geometric model of heptagon defect formation, which initiates and maintains the CNT growth, allowed us to theoretically explain the phenomenon. (C) 2005 Elsevier Ltd. All rights reserved.

引用

页码：2251 / 2257

页数：7

共 23 条

[1] Influence of the support on the structural characteristics of carbon nanofibers produced from the metal-catalyzed decomposition of ethylene
Anderson, PE
Rodríguez, NM
[J]. CHEMISTRY OF MATERIALS, 2000, 12 (03) : 823 - 830
[2] Mechanism for the growth of multiwalled carbon-nanotubes from carbon black
Buchholz, DB
Doherty, SP
Chang, RPH
[J]. CARBON, 2003, 41 (08) : 1625 - 1634
[3] Diameter-controlled synthesis of carbon nanotubes
Cheung, CL
Kurtz, A
Park, H
Lieber, CM
[J]. JOURNAL OF PHYSICAL CHEMISTRY B, 2002, 106 (10) : 2429 - 2433
[4] Single-wall nanotubes produced by metal-catalyzed disproportionation of carbon monoxide
Dal, HJ
Rinzler, AG
Nikolaev, P
Thess, A
Colbert, DT
Smalley, RE
[J]. CHEMICAL PHYSICS LETTERS, 1996, 260 (3-4) : 471 - 475
[5] The role of the catalytic particle temperature gradient for SWNT growth from small particles
Ding, F
Rosén, A
Bolton, K
[J]. CHEMICAL PHYSICS LETTERS, 2004, 393 (4-6) : 309 - 313
[6] Nanotubes - A step in synthesis
Dresselhaus, MS
[J]. NATURE MATERIALS, 2004, 3 (10) : 665 - 666
[7] Atomic-scale imaging of carbon nanofibre growth
Helveg, S
López-Cartes, C
Sehested, J
Hansen, PL
Clausen, BS
Rostrup-Nielsen, JR
Abild-Pedersen, F
Norskov, JK
[J]. NATURE, 2004, 427 (6973) : 426 - 429
[8] CVD growth of single-walled carbon nanotubes using size-controlled nanoparticle catalyst
Kobayashi, Y
Nakashima, H
Takagi, D
Homma, Y
[J]. THIN SOLID FILMS, 2004, 464 : 286 - 289
[9] Graphitic cones and the nucleation of curved carbon surfaces
Krishnan, A
Dujardin, E
Treacy, MMJ
Hugdahl, J
Lynum, S
Ebbesen, TW
[J]. NATURE, 1997, 388 (6641) : 451 - 454
[10] Correlation between metal catalyst particle size and carbon nanotube growth
Kukovitsky, EF
L'vov, SG
Sainov, NA
Shustov, VA
Chernozatonskii, LA
[J]. CHEMICAL PHYSICS LETTERS, 2002, 355 (5-6) : 497 - 503

← 1 2 3 →