Title

Analysis of effluent gases during the CCVD growth of multi-wall carbon nanotubes from acetylene

Authors

Authors

T. C. Schmitt; A. S. Biris; D. W. Miller; A. R. Biris; D. Lupu; S. Trigwell;Z. U. Rahman

Comments

Authors: contact us about adding a copy of your work at STARS@ucf.edu

Abbreviated Journal Title

Carbon

Keywords

catalytic chemical vapor deposition; carbon nanotubes; thermodynamic; analysis; chromatography; LARGE-SCALE PRODUCTION; CATALYTIC DECOMPOSITION; HYDROGEN; SUPPORT; Chemistry, Physical; Materials Science, Multidisciplinary

Abstract

Catalytic chemical vapor deposition was used to grow multi-walled carbon nanotubes on a Fe:Co:CaCO3 catalyst from acetylene. The influent and effluent gases were analyzed by gas chromatography and mass spectrometry at different time intervals during the nanotubes growth process in order to better understand and optimize the overall reaction. A large number of byproducts were identified and it was found that the number and the level for some of the carbon byproducts significantly increased over time. The CaCO3 catalytic support thermally decomposed into CaO and CO2 resulting in a mixture of two catalysts for growing the nanotubes, which were found to have outer diameters belonging to two main groups 8-35 nm and 40-60 nm, respectively. (c) 2006 Elsevier Ltd. All rights reserved.

Journal Title

Carbon

Volume

44

Issue/Number

10

Publication Date

1-1-2006

Document Type

Article

Language

English

First Page

2032

Last Page

2038

WOS Identifier

WOS:000238499900025

ISSN

0008-6223

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