Parametric study of carbon nanotube growth via cobalt-catalyzed ethanol decomposition

Lianxi Zheng; Xiaozhou Liao; Yuntian T. Zhu

doi:10.1016/j.matlet.2005.12.060

Parametric study of carbon nanotube growth via cobalt-catalyzed ethanol decomposition

Lianxi Zheng, Xiaozhou Liao, Yuntian T. Zhu

Mechanical & Nuclear Engineering

Los Alamos National Laboratory

Research output: Contribution to journal › Article › peer-review

44 Scopus citations

Abstract

Ethanol has been found to be a superior carbon source that can produce clean carbon nanotubes with minimal amorphous carbon impurity. In this study we have investigated the influence of several synthesis parameters on the growth of carbon nanotubes via cobalt-catalyzed decomposition of ethanol on porous alumina substrates. The synthesis parameters investigated here include the synthesis temperature and time, the flow rate of carrier gas for ethanol, and the concentration of cobalt catalyst solution. Our results suggest that there exist a critical flow rate for ethanol carrier gas and a critical concentration of cobalt solution, below which no carbon nanotube can grow. There also exist optimum parametric windows for synthesis temperature and cobalt solution, within which clean carbon nanotubes grow readily.

Original language	British English
Pages (from-to)	1968-1972
Number of pages	5
Journal	Materials Letters
Volume	60
Issue number	16
DOIs	https://doi.org/10.1016/j.matlet.2005.12.060
State	Published - Jul 2006

Keywords

Chemical vapor deposition
Fullerenes
Nanomaterials

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10.1016/j.matlet.2005.12.060

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title = "Parametric study of carbon nanotube growth via cobalt-catalyzed ethanol decomposition",

abstract = "Ethanol has been found to be a superior carbon source that can produce clean carbon nanotubes with minimal amorphous carbon impurity. In this study we have investigated the influence of several synthesis parameters on the growth of carbon nanotubes via cobalt-catalyzed decomposition of ethanol on porous alumina substrates. The synthesis parameters investigated here include the synthesis temperature and time, the flow rate of carrier gas for ethanol, and the concentration of cobalt catalyst solution. Our results suggest that there exist a critical flow rate for ethanol carrier gas and a critical concentration of cobalt solution, below which no carbon nanotube can grow. There also exist optimum parametric windows for synthesis temperature and cobalt solution, within which clean carbon nanotubes grow readily.",

keywords = "Chemical vapor deposition, Fullerenes, Nanomaterials",

author = "Lianxi Zheng and Xiaozhou Liao and Zhu, {Yuntian T.}",

note = "Funding Information: This research was supported by the Laboratory Directed Research and Development program office of the Los Alamos National Laboratory.",

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AU - Zheng, Lianxi

AU - Liao, Xiaozhou

AU - Zhu, Yuntian T.

N1 - Funding Information: This research was supported by the Laboratory Directed Research and Development program office of the Los Alamos National Laboratory.

PY - 2006/7

Y1 - 2006/7

N2 - Ethanol has been found to be a superior carbon source that can produce clean carbon nanotubes with minimal amorphous carbon impurity. In this study we have investigated the influence of several synthesis parameters on the growth of carbon nanotubes via cobalt-catalyzed decomposition of ethanol on porous alumina substrates. The synthesis parameters investigated here include the synthesis temperature and time, the flow rate of carrier gas for ethanol, and the concentration of cobalt catalyst solution. Our results suggest that there exist a critical flow rate for ethanol carrier gas and a critical concentration of cobalt solution, below which no carbon nanotube can grow. There also exist optimum parametric windows for synthesis temperature and cobalt solution, within which clean carbon nanotubes grow readily.

AB - Ethanol has been found to be a superior carbon source that can produce clean carbon nanotubes with minimal amorphous carbon impurity. In this study we have investigated the influence of several synthesis parameters on the growth of carbon nanotubes via cobalt-catalyzed decomposition of ethanol on porous alumina substrates. The synthesis parameters investigated here include the synthesis temperature and time, the flow rate of carrier gas for ethanol, and the concentration of cobalt catalyst solution. Our results suggest that there exist a critical flow rate for ethanol carrier gas and a critical concentration of cobalt solution, below which no carbon nanotube can grow. There also exist optimum parametric windows for synthesis temperature and cobalt solution, within which clean carbon nanotubes grow readily.

KW - Chemical vapor deposition

KW - Fullerenes

KW - Nanomaterials

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VL - 60

SP - 1968

EP - 1972

JO - Materials Letters

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ER -

Parametric study of carbon nanotube growth via cobalt-catalyzed ethanol decomposition

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Keywords

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