Issue 14, 2019

Validation of alkaline oxidation as a pre-treatment method for elemental quantification in single-walled carbon nanotubes

Abstract

Nanocarbons continue to stimulate the scientific community while their production has also started to reach the industrial scale. With the commercialization of products that are based on materials such as carbon nanotubes (CNTs), it has become imperative to implement reliable quality control protocols for the routine analysis of their chemical composition and structure. Herein, we propose alkaline oxidation (a.k.a., fusion) as a valuable approach to disintegrate the graphitic structure of carbon nanotubes. Using the certified reference material SWCNT-1, it was shown that fusion enables the subsequent determination of elemental concentrations (Ni, Co and Mo) by a routine analytical tool such as inductively coupled plasma optical emission spectroscopy (ICP-OES). Furthermore, the fusion residues were investigated, clarifying that the process does not result in the formation of non-intentional carbon compounds (e.g., carbides or carbonates) or lattice doping (e.g., B doping or Li intercalation).

Graphical abstract: Validation of alkaline oxidation as a pre-treatment method for elemental quantification in single-walled carbon nanotubes

Supplementary files

Article information

Article type
Paper
Submitted
09 Okt. 2018
Accepted
16 Febr. 2019
First published
18 Febr. 2019
This article is Open Access
Creative Commons BY-NC license

Anal. Methods, 2019,11, 1884-1890

Validation of alkaline oxidation as a pre-treatment method for elemental quantification in single-walled carbon nanotubes

F. R. F. Simoes, Nitin M. Batra, A. Emwas and P. M. F. J. Costa, Anal. Methods, 2019, 11, 1884 DOI: 10.1039/C8AY02213E

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