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Issue 55, 2014
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Experimental and theoretical studies on the mechanism for chemical oxidation of multiwalled carbon nanotubes

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Abstract

In this study, the oxidation of multiwalled carbon nanotubes (MWCNTs) sonicated and/or refluxed in acids (H2SO4/HNO3) was investigated using a combination of high-resolution transmission electron microscopy, Raman spectroscopy, Fourier transform infrared spectroscopy, and ab initio computational methods. Sonication of the sample has the strongest effect, leading to the highest concentration of defects and carboxyl groups on the walls. Substantial correlations between treatment protocols, CNT size, and the types of chemical moieties are observed. Finally, based on experimental and computational results, we suggest the mechanism of the oxidation process for attaching the functional groups on the sidewalls.

Graphical abstract: Experimental and theoretical studies on the mechanism for chemical oxidation of multiwalled carbon nanotubes

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Publication details

The article was received on 28 Apr 2014, accepted on 19 Jun 2014 and first published on 19 Jun 2014


Article type: Paper
DOI: 10.1039/C4RA03881A
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Citation: RSC Adv., 2014,4, 28826-28831
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    Experimental and theoretical studies on the mechanism for chemical oxidation of multiwalled carbon nanotubes

    B. M. Maciejewska, M. Jasiurkowska-Delaporte, A. I. Vasylenko, K. K. Kozioł and S. Jurga, RSC Adv., 2014, 4, 28826
    DOI: 10.1039/C4RA03881A

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