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

    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

    Share

    COinS