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Issue 39, 2015
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Large-scale synthesis and characterization of super-bundle single-walled carbon nanotubes by water-assisted chemical vapor deposition

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Abstract

A large-scale synthesis of water-assisted single-walled carbon nanotubes (SWCNTs) was investigated over Fe–Mo/MgO catalysts by catalytic chemical vapor deposition of ethylene. Introduction of water vapor into a reactor induced super-bundle SWCNTs (SB-SWCNTs) and dramatically improved the product yield of SWCNTs from 40 to 206 wt%. By adding water vapor, the average diameter of the SB-SWCNTs was increased from 1.5 to 3.0 nm and distribution of the diameter became wider. The Raman peak intensity ratio (IG/ID) of the SWCNTs, which indicates the crystallinity and defect degree of SWCNTs, showed an almost constant value of 8 regardless of water vapor concentration. The possible growth mechanism of SB-SWCNTs was discussed.

Graphical abstract: Large-scale synthesis and characterization of super-bundle single-walled carbon nanotubes by water-assisted chemical vapor deposition

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Publication details

The article was received on 16 Feb 2015, accepted on 24 Mar 2015 and first published on 24 Mar 2015


Article type: Paper
DOI: 10.1039/C5RA03000E
Author version available: Download Author version (PDF)
Citation: RSC Adv., 2015,5, 30564-30569
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    Large-scale synthesis and characterization of super-bundle single-walled carbon nanotubes by water-assisted chemical vapor deposition

    Y. Zhao, J. Choi, P. Kim, W. Fei and C. J. Lee, RSC Adv., 2015, 5, 30564
    DOI: 10.1039/C5RA03000E

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