Multi-Walled Carbon Nanotubes with ppm Level of Impurities Научная публикация
Конференция |
24th International Winterschool on Electronic Properties of Novel Materials - Molecular Nanostructures 06-13 мар. 2010 , Kirchberg |
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Журнал |
Physica Status Solidi (B): Basic Research
ISSN: 0370-1972 , E-ISSN: 1521-3951 |
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Вых. Данные | Год: 2010, Том: 247, Номер: 11-12, Страницы: 2695-2699 Страниц : 5 DOI: 10.1002/pssb.201000211 | ||||||||||
Ключевые слова | High-temperature annealing, Multi-walled carbon nanotubes, Ppm level of impurities, Structural ordering | ||||||||||
Авторы |
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Организации |
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Реферат:
Here multi-walled carbon nanotubes (MWNT) of different average diameters with ppm level purity were produced by a low temperature C2H4 pyrolysis on Fe-Co type catalysts combined with forthcoming graphitization at 2200–2800 °C in argon flow. Annealed nanotubes were characterized with X-ray fluorescent analysis, BET surface measurements, HR TEM, X-ray diffraction, DTA analysis, and measurements of temperature and magnetic field dependences of conductivity. The graphitization of MWNT results in removal of residual catalyst metal impurities, reduction of the wall defects, and closure of nanotube tips. It was found that extent of these effects depends on MWNT diameters. It was proposed that the graphitization is caused by a significant thermal displacement and diffusion of carbon atoms at temperatures higher the Debye temperature.
Библиографическая ссылка:
Kuznetsov V.L.
, Elumeeva K.V.
, Ishchenko A.V.
, Beylina N.Y.
, Stepashkin A.A.
, Moseenkov S.I.
, Plyasova L.M.
, Molina I.Y.
, Romanenko A.I.
, Anikeeva O.B.
, Tkachev E.N.
Multi-Walled Carbon Nanotubes with ppm Level of Impurities
Physica Status Solidi (B): Basic Research. 2010. V.247. N11-12. P.2695-2699. DOI: 10.1002/pssb.201000211 WOS Scopus РИНЦ
Multi-Walled Carbon Nanotubes with ppm Level of Impurities
Physica Status Solidi (B): Basic Research. 2010. V.247. N11-12. P.2695-2699. DOI: 10.1002/pssb.201000211 WOS Scopus РИНЦ
Даты:
Поступила в редакцию: | 30 апр. 2010 г. |
Принята к публикации: | 31 авг. 2010 г. |
Опубликована online: | 7 окт. 2010 г. |
Опубликована в печати: | 1 дек. 2010 г. |
Идентификаторы БД:
Web of science | WOS:000285798400016 |
Scopus | 2-s2.0-78649695733 |
РИНЦ | 16869005 |
Chemical Abstracts | 2011:16831 |
Chemical Abstracts (print) | 155:630244 |
OpenAlex | W2000527523 |