Oxidation Behavior of Multiwall Carbon Nanotubes with Different Diameters and Morphology Full article
| Journal |
Applied Surface Science
ISSN: 0169-4332 |
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| Output data | Year: 2012, Volume: 258, Number: 17, Pages: 6272-6280 Pages count : 9 DOI: 10.1016/j.apsusc.2012.03.021 | ||||||
| Tags | Acid-base titration, Carbon nanotubes, Functionalization, Oxidation | ||||||
| Authors |
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| Affiliations |
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Funding (6)
| 1 | Russian Foundation for Basic Research | 09-02-00331 |
| 2 | Russian Foundation for Basic Research | 11-03-00351 |
| 3 | International Science and Technology Center | B-1708 |
| 4 | The Ministry of Education and Science of the Russian Federation | 16.740.11.0016 |
| 5 | The Ministry of Education and Science of the Russian Federation | 16.740.11.0146 |
| 6 | The Ministry of Education and Science of the Russian Federation | 2.1.1/10256 |
Abstract:
Multiwall carbon nanotubes (MWNT) with three medium diameters (20–22, 9–13, and 6–8 nm) and different morphology were chemically oxidized using concentrated nitric acid, mixture of nitric and sulfuric acids (“mélange” solution) and mixture of sulfuric acid and hydrogen peroxide (“piranha” solution). Influence of MWNT type and structure as well as type of oxidizer on the surface composition and structure of nanotubes after oxidation was investigated. Acid–base titration, X-ray photoelectron spectroscopy and thermal gravimetric analysis were used for quantitative and qualitative investigation of surface group composition of initial and oxidized nanotubes. Amount of oxygen-containing groups on the surface of oxidized MWNT depends on the type of initial MWNT. It was found that ratio of different oxygen containing groups is less dependent on the type of oxidizer. Electrophysical properties of initial and oxidized nanotubes were investigated in temperature range 4–293 K and main types of electrical conductivity were determined. It was shown that oxidation results in decrease in electrical conductivity of all samples with simultaneous change in the conductivity mechanism. Dispersive behavior of initial and oxidized nanotubes in different commonly used solvents was investigated. It was shown that oxidation leads to the improvement of sedimentation stability of MWNT in polar solvents.
Cite:
Mazov I.
, Kuznetsov V.L.
, Simonova I.A.
, Stadnichenko A.I.
, Ishchenko A.V.
, Romanenko A.I.
, Tkachev E.N.
, Anikeeva O.B.
Oxidation Behavior of Multiwall Carbon Nanotubes with Different Diameters and Morphology
Applied Surface Science. 2012. V.258. N17. P.6272-6280. DOI: 10.1016/j.apsusc.2012.03.021 WOS Scopus РИНЦ ANCAN OpenAlex
Oxidation Behavior of Multiwall Carbon Nanotubes with Different Diameters and Morphology
Applied Surface Science. 2012. V.258. N17. P.6272-6280. DOI: 10.1016/j.apsusc.2012.03.021 WOS Scopus РИНЦ ANCAN OpenAlex
Dates:
| Submitted: | Sep 7, 2011 |
| Accepted: | Mar 6, 2012 |
| Published online: | Mar 14, 2012 |
| Published print: | Jun 1, 2012 |
Identifiers:
| Web of science: | WOS:000303112100016 |
| Scopus: | 2-s2.0-84860242012 |
| Elibrary: | 17983676 |
| Chemical Abstracts: | 2012:487862 |
| Chemical Abstracts (print): | 156:618965 |
| OpenAlex: | W2121615364 |