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Parametric Study of Single-Walled Carbon Nanotubes Using Alcohol Catalytic Chemical Vapor Deposition

Published online by Cambridge University Press:  01 February 2011

H. Emrah Unalan  and
Manish Chhowalla
H. Emrah Unalan
Affiliation:
Ceramic and Materials Engineering Department, Rutgers University Piscataway, NJ 08854
Manish Chhowalla
Affiliation:
Ceramic and Materials Engineering Department, Rutgers University Piscataway, NJ 08854
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Abstract

Single-walled carbon nanotubes (SWNTs) were synthesized both in powder form and on substrates using alcohol catalytic chemical vapor deposition method (ACCVD). A detailed parametric study was conducted. As-grown SWNTs were analyzed using transmission electron microscopy (HRTEM), field-emission scanning electron microscopy (FE-SEM) and Raman spectroscopy. Nucleation and growth of SWNTs occurred within seconds after introduction of the alcohol vapor. The results show that high quality SWNTs with a narrow diameter distribution without amorphous carbon can be grown using Co acetate catalyst doped with Fe acetate above 750°C. Defective nanotubes were observed at low (450°C) and high (950°C) temperatures with the optimum temperature being 850°C. In brief, our work has taken a step towards optimizing SWNTs growth conditions using ACCVD.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 858: Symposium HH – Functional Carbon Nanotubes , 2004 , HH1.5
Copyright
Copyright © Materials Research Society 2005

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References

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