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Structural Changes in a Nickel-Copper Catalyst During Growth of Nitrogen-Containing Carbon Nanofibers by Ethylene/Ammonia Decomposition Научная публикация

Журнал Carbon
ISSN: 0008-6223 , E-ISSN: 1873-3891
Вых. Данные Год: 2010, Том: 48, Номер: 10, Страницы: 2792-2801 Страниц : 10 DOI: 10.1016/j.carbon.2010.04.008
Ключевые слова CHEMICAL-VAPOR-DEPOSITION; METHANE DECOMPOSITION; FILAMENTOUS CARBON; NANOTUBES; IRON; MECHANISM; THERMODYNAMICS; NUCLEATION; EVOLUTION; DIFFUSION
Авторы Podyacheva O.Yu. 1 , Ismagilov Z.R. 1 , Shalagina A.E. 1 , Ushakov V.A. 1 , Shmakov A.N. 1,2 , Tsybulya S.V. 1,2 , Kriventsov V.V. 1 , Ischenko A.V. 1
Организации
1 Boreskov Institute of Catalysis
2 Novosibirsk State University

Информация о финансировании (5)

1 Российский фонд фундаментальных исследований 09-03-93114
2 Сибирское отделение Российской академии наук 9
3 Сибирское отделение Российской академии наук 31
4 Сибирское отделение Российской академии наук 88
5 Президиум РАН 27.58

Реферат: Structural changes in a 65Ni–25Cu–Al2O3 catalyst during the decomposition of a C2H4/NH3 mixture at different stages of nitrogen-containing carbon nanofiber (N-CNF) synthesis were studied by X-ray diffraction (XRD) analysis, X-ray diffraction using anomalous scattering effect and extended X-ray absorption fine structure (EXAFS) spectroscopy. The N-CNF growth over a catalyst particle was supposed to proceed via the formation of an oversaturated solid solution of carbon and nitrogen in a nickel-enriched alloy “NiCuxCyNz”. The latter resulted in an increase of the alloy lattice parameter to abnormally large values а = 3.616–3.706 Å without destruction of its cubic structure. The formation of the “NiCuxCyNz” phase and its presence in the system coincide with the optimum time for the synthesis of N-CNFs with the highest nitrogen concentration and maximum values of specific surface area and total pore volume.
Библиографическая ссылка: Podyacheva O.Y. , Ismagilov Z.R. , Shalagina A.E. , Ushakov V.A. , Shmakov A.N. , Tsybulya S.V. , Kriventsov V.V. , Ischenko A.V.
Structural Changes in a Nickel-Copper Catalyst During Growth of Nitrogen-Containing Carbon Nanofibers by Ethylene/Ammonia Decomposition
Carbon. 2010. V.48. N10. P.2792-2801. DOI: 10.1016/j.carbon.2010.04.008 WOS Scopus РИНЦ CAPlusCA OpenAlex
Даты:
Поступила в редакцию: 30 нояб. 2009 г.
Принята к публикации: 6 апр. 2010 г.
Опубликована online: 10 апр. 2010 г.
Опубликована в печати: 1 авг. 2010 г.
Идентификаторы БД:
Web of science: WOS:000279443900012
Scopus: 2-s2.0-77955696062
РИНЦ: 15329158
Chemical Abstracts: 2010:677545
Chemical Abstracts (print): 153:296958
OpenAlex: W2044666950
Цитирование в БД:
БД Цитирований
Web of science 31
Scopus 29
РИНЦ 41
OpenAlex 30
Альметрики: