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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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Supplementary files

Article information


Submitted
28 Apr 2014
Accepted
19 Jun 2014
First published
19 Jun 2014

RSC Adv., 2014,4, 28826-28831
Article type
Paper
Author version available

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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