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Investigation on the temperature-dependent growth rate of carbon nanotubes using chemical vapor deposition of ferrocene and acetylene
- Authors
- Kim, Ki-Eun; Kim, Kang-Jin; Jung, Woo Sung; Bae, Seung Yong; Park, Jeunghee; Choi, Junghyun; Choo, Jaebum
- Issue Date
- Jan-2005
- Publisher
- ELSEVIER SCIENCE BV
- Citation
- CHEMICAL PHYSICS LETTERS, v.401, no.4-6, pp 459 - 464
- Pages
- 6
- Journal Title
- CHEMICAL PHYSICS LETTERS
- Volume
- 401
- Number
- 4-6
- Start Page
- 459
- End Page
- 464
- ISSN
- 0009-2614
1873-4448
- Abstract
- Carbon nanotubes (CNTs) were synthesized using chemical vapor deposition of ferrocene and acetylene in the temperature range 600-800 degreesC. The growth rate increases exponentially with the temperature, providing an activation energy 30 kcal/mol which is close to the diffusion energy of carbons in the bulk iron metal. We compared the growth rate with those of the CNTs. gown using other thermal methods reported previously and suggest a simple kinetic model to explain the growth rate depending on the method. The supply rate of C atoms in gas phase would influence the growth rate of CNTs. (C) 2004 Elsevier B.V. All rights reserved.
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