Synthesis of Nitrogen-Containing Carbon Nanofibers by Catalytic Decomposition of Ethylene/Ammonia Mixture Научная публикация
| Журнал |
Carbon
ISSN: 0008-6223 , E-ISSN: 1873-3891 |
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| Вых. Данные | Год: 2007, Том: 45, Номер: 9, Страницы: 1808-1820 Страниц : 13 DOI: 10.1016/j.carbon.2007.04.032 | ||
| Ключевые слова | Catalyst activity; Complexation; Reaction kinetics; Synthesis (chemical); Thermal effects; X ray photoelectron spectroscopy | ||
| Авторы |
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| Организации |
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Информация о финансировании (3)
| 1 | Netherlands Organisation for Scientific Research | 047.017.028 |
| 2 | Сибирское отделение Российской академии наук | 4.5 |
| 3 | International Association for the Promotion of Co-operation with Scientists from the New Independent States of the Former Soviet Union | 05-1000005-7726 |
Реферат:
The formation of carbon nanofibers (CNFs) doped with nitrogen was investigated during decomposition of C2H4/NH3 mixtures at 450–675 °C over metal catalysts: 90Ni–Al2O3, 82Ni–8Cu–Al2O3, 65Ni–25Cu–Al2O3, 45Ni–45Cu–Al2O3, 90Fe–Al2O3, 85Fe–5Co–Al2O3, 62Fe–8Co–Al2O3, 62Fe–8Ni–Al2O3. It was found that the yield of CNFs, their structural and textural properties, as well as nitrogen content in CNFs are strongly dependent on the synthesis conditions such as: catalyst used, feed composition, temperature and duration. The 65Ni–25Cu–Al2O3 was proved to be the most efficient catalyst for the production of nitrogen-containing carbon nanofibers (N-CNFs) with nitrogen content up to 7 wt.%. Ammonia concentration in the feed equal 75 vol.%, temperature 550 °C and duration 1 h were found to be the optimum reaction parameters to reach the maximum nitrogen content in N-CNFs. TEM studies revealed that the nanofibers have a helical morphology and a “herringbone” structure composed of graphite sheets. According to the XPS data, the nitrogen incorporation in the N-CNF structure leads to the formation of two types of nitrogen coordination: pyridinic and quaternary, and their abundance depends on the reaction conditions.
Библиографическая ссылка:
Shalagina A.E.
, Ismagilov Z.R.
, Podyacheva O.Y.
, Kvon R.I.
, Ushakov V.A.
Synthesis of Nitrogen-Containing Carbon Nanofibers by Catalytic Decomposition of Ethylene/Ammonia Mixture
Carbon. 2007. V.45. N9. P.1808-1820. DOI: 10.1016/j.carbon.2007.04.032 WOS Scopus РИНЦ CAPlusCA OpenAlex
Synthesis of Nitrogen-Containing Carbon Nanofibers by Catalytic Decomposition of Ethylene/Ammonia Mixture
Carbon. 2007. V.45. N9. P.1808-1820. DOI: 10.1016/j.carbon.2007.04.032 WOS Scopus РИНЦ CAPlusCA OpenAlex
Даты:
| Поступила в редакцию: | 20 дек. 2006 г. |
| Принята к публикации: | 28 апр. 2007 г. |
| Опубликована online: | 22 мая 2007 г. |
| Опубликована в печати: | 1 авг. 2007 г. |
Идентификаторы БД:
| Web of science: | WOS:000248935500012 |
| Scopus: | 2-s2.0-34447554384 |
| РИНЦ: | 13535302 |
| Chemical Abstracts: | 2007:804794 |
| Chemical Abstracts (print): | 150:194446 |
| OpenAlex: | W1965796841 |