DOI QR코드

DOI QR Code

Influence of Flow Rate of Precursor on the Structure of Carbon Nanotubes Synthesized by Floating Catalyst Method

Floating Catalyst 법에서 주입유량에 따른 탄소나노튜브의 구조

  • Kim, Myung-Soo (Department of Chemical Engineering, Myongji University) ;
  • Kang, Eun-Jin (Department of Chemical Engineering, Myongji University) ;
  • Kim, Mun-Geol (Department of Chemical Engineering, Myongji University) ;
  • Han, Ling (Department of Chemical Engineering, Myongji University) ;
  • Hahm, Hyun-Sik (Department of Chemical Engineering, Myongji University) ;
  • Park, Hong-Soo (Department of Chemical Engineering, Myongji University)
  • 김명수 (명지대학교 공과대학 화학공학과) ;
  • 강은진 (명지대학교 공과대학 화학공학과) ;
  • 김문걸 (명지대학교 공과대학 화학공학과) ;
  • 한링 (명지대학교 공과대학 화학공학과) ;
  • 함현식 (명지대학교 공과대학 화학공학과) ;
  • 박홍수 (명지대학교 공과대학 화학공학과)
  • Published : 2005.03.31

Abstract

Aligned multi-wall carbon nanotubes (MWNTs) were synthesized through the catalytic decomposition of hydrocarbons in a quartz tube reactor. In this study, we investigated the influence of gas flow rate of feedstock on the structure and growth rate of vertically aligned carbon nanotubes produced by the floating catalyst method. As the flow rate of feedstock increased, the nanotube diameter became smaller and the length became longer. Although the growth rate also increased with the raise of flow rate, the optimum flow rate of feedstock existed for the crystallinity of carbon nanotubes.

Keywords

References

  1. S. Iijima, Helical Microtubules of Graphitic Carbon, Nature, 345, 56 (1991)
  2. W. A. deMHeer, W. S. Bacsa, A. Chatelain, T. Gerfin, R. Humphrey-Baker, L. Forro, and D. Ugarte, Aligned Carbon Nanotube Films : Production of Optical and Electronic Properties, Science, 268, 845 (1995)
  3. H. Dai,E. W. Wong, and C. M. Liber, Probing Electrical Transport in Nanomaterials : Conductivity of Individual Nanotubes, Science, 272, 523 (1996)
  4. M. Terrones, N. Grobert, J. Olivares, J. P. Zhang, H. Terrones, K. Kordatos, W. K. Hsu, J. P. Hare, P. D. Townsend, K. Prassides, A. K. Cheetham, H. W. Kroto, and D. R. M. Walton, Controlled Production of Aligned-Nanotube Bundles, Nature, 388, 52 (1997)
  5. T. W. Ebbesen and P. M. Ajayan, LargeScale Synthesis of Carbon Nanotubes, Nature, 358, 220 (1992)
  6. S. D. Bethune, C.-H. Kiang, A. Goddard William ill, R. J. Salem, and R. Beyers, Single Layer Carbon Nanotubes with diameters from 1 to 6 nm, Proc.-Electrochem soc., 94, 1487 (1994)
  7. A. Thess, R. Lee, P. Nikolaev, H. Dai, P. Petit, J. Robert, C. Xu, Y. H. Lee, S. G. Kim, D. T. Colbert, G. Scuseria, D. Tomanek, J. E. Fisher, and R. E. Smalley, Crystalline Ropes of Metaalic Carbon Nanotubes, Science, 273, 483 (1996)
  8. Z. P. Huang, J. W. Xu, Z. F. Ren, J. H. Wang, M. P. Siegal, and P. N. Provencio, Growth of Highly Oriented Carbon Nanotubes by Plasma-Enhanced Hot Filament Chemical Vapor Deposition, Phys. Lett., 73, 3845 (1998)
  9. M. C. Kim, S. H. Moon, J. S. Lim, H. S. Hahm, and M. S. Kim, Physical Properties and Morphology of Carbon Nanotubes Prepared by Thermal and Plasma CVD of Acetylene, J. Korean Oil Chem. Soc., 21, 174 (2004)
  10. M. C. Kim, S. H. Moon, J. S. Lim, H. S. Hahm, H. S. Park, and M. S. Kim, Morphology of Carbon Nanotubes Prepared by Methane Plasma CVD, J. Korean Oil Chem. Soc., 21, in Press
  11. R. Andrews, D. Jacques, A. M. Rao, F. Derbyshire, D. Qian, X.Fan, E. C. Dickey, and J. Chen, Continuous Production of Aligned Carbon Nanotubes: a Step Closer to Commercial Realization, Chem., Phys, Lett., 303, 467 (1999)
  12. H. S. Song, E. J. Kang, and M. S. Kim, Preparation of Multi-Wall Carbon Nanotubes by Foating Catalyst Method, Carbon Science, 3, 25 (2002)
  13. C. Singh, M. P. Shaffer, and A. Windle, Production of Controlled Architectures of Aligned Carbon Nanotubes by Injection Chemical Vapour Deposition Method, Carbon, 41, 359 (2003) https://doi.org/10.1016/S0008-6223(02)00262-2
  14. T. W. Ebbesen, 'Carbon Nanotubes : Preparation and Properties', p. 164, CRC Press, New Jersey (1997)
  15. T. Y. Kim, K. R. Lee K. Y. Eun, and K. H. Oh, Carbon Nanotube Growth Enhanced by Nitrogen Incorporation, Chem. Phys. Letters, 372, 603 (2003)
  16. C. Emmenegger, J. M. Bonard, P. Mauron, P. Sudan, A. Lepora, B. Grobety, A. Zuttel, and L. Schlapbach, Synthesis of Carbon Nanotubes over Fe catalyst on Aluminium and Suggested Growth Mechanism, Carbon, 41, 539 (2003) https://doi.org/10.1016/S0008-6223(02)00262-2