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Oxidation Behavior of Multiwall Carbon Nanotubes with Different Diameters and Morphology Научная публикация

Общее Язык: Английский, Жанр: Статья (Full article),
Статус опубликования: Опубликована, Оригинальность: Оригинальная
Журнал Applied Surface Science
ISSN: 0169-4332
Вых. Данные Год: 2012, Том: 258, Номер: 17, Страницы: 6272-6280 Страниц : 9 DOI: 10.1016/j.apsusc.2012.03.021
Ключевые слова Acid-base titration, Carbon nanotubes, Functionalization, Oxidation
Авторы Mazov Ilya 1 , Kuznetsov Vladimir L. 1,3 , Simonova Irina A. 1 , Stadnichenko Andrey I. 1,3 , Ishchenko Arkady V. 1 , Romanenko Anatoly I. 2,3 , Tkachev Evgeniy N. 2,3 , Anikeeva Olga B. 2,3
Организации
1 Boreskov Institute of Catalysis, Lavrentieva ave. 5, Novosibirsk, 630090, Russia
2 Nikolaev Institute of Inorganic Chemistry, Lavrentieva ave. 3, Novosibirsk, 630090, Russia
3 Novosibirsk State University, Pirogova st. 2, Novosibirsk, 630090, Russia

Информация о финансировании (6)

1 Международный научно-технический центр B-1708
2 Министерство образования и науки Российской Федерации 2.1.1/10256
3 Российский фонд фундаментальных исследований 09-02-00331
4 Российский фонд фундаментальных исследований 11-03-00351
5 Министерство образования и науки Российской Федерации 16.740.11.0016
6 Министерство образования и науки Российской Федерации 16.740.11.0146

Реферат: 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.
Библиографическая ссылка: 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
Даты:
Поступила в редакцию: 7 сент. 2011 г.
Принята к публикации: 6 мар. 2012 г.
Опубликована online: 14 мар. 2012 г.
Опубликована в печати: 1 июн. 2012 г.
Идентификаторы:
Web of science WOS:000303112100016
Scopus 2-s2.0-84860242012
РИНЦ 17983676
Chemical Abstracts 2012:487862
Chemical Abstracts (print) 156:618965
Альметрики: