Coprecipitated Ni-Al and Ni-Cu-Al Catalysts for Methane Decomposition and Carbon Deposition I. Genesis of Calcined and Reduced Catalysts Научная публикация
Журнал |
Applied Catalysis A: General
ISSN: 0926-860X , E-ISSN: 1873-3875 |
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Вых. Данные | Год: 1995, Том: 126, Номер: 1, Страницы: 125-139 Страниц : 15 DOI: 10.1016/0926-860X(94)00289-4 | ||
Ключевые слова | Auger spectroscopy, Bimetallic catalysts, Extended X-ray absorption fine structure, Nickel-copper/alumina, Nickel/alumina | ||
Авторы |
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Организации |
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Реферат:
The structure of coprecipitated Ni-Al and Ni-Cu-Al catalyst with high nickel content (60–90 wt.-%
Ni-alumina) has been investigated by X-ray powder diffraction, extended X-ray absorption fine structure (EXAFS) spectroscopy and Auger electron spectroscopy of calcined and reduced samples. The alumina was shown to behave as a textural promoter. The model of the reduced Ni-Al catalyst consisted of highly dispersed nickel and alumina particles with a Ni-Al spinel phase at their interface. The Ni-Al spinel phase had mainly an inverse structure. In the reduced sample the paracrystallinity of nickel was evidenced by precise diffraction measurements using synchrotron radiation. The spinel structure was not observed when copper was introduced. As a result, the alumina particles were more dispersed and covered the surface of the Ni-Cu particles enriched with copper.
Библиографическая ссылка:
Shaikhutdinov S.K.
, Avdeeva L.B.
, Goncharova O.V.
, Kochubey D.I.
, Novgorodov B.N.
, Plyasova L.M.
Coprecipitated Ni-Al and Ni-Cu-Al Catalysts for Methane Decomposition and Carbon Deposition I. Genesis of Calcined and Reduced Catalysts
Applied Catalysis A: General. 1995. V.126. N1. P.125-139. DOI: 10.1016/0926-860X(94)00289-4 WOS Scopus РИНЦ РИНЦ
Coprecipitated Ni-Al and Ni-Cu-Al Catalysts for Methane Decomposition and Carbon Deposition I. Genesis of Calcined and Reduced Catalysts
Applied Catalysis A: General. 1995. V.126. N1. P.125-139. DOI: 10.1016/0926-860X(94)00289-4 WOS Scopus РИНЦ РИНЦ
Даты:
Поступила в редакцию: | 7 июл. 1994 г. |
Принята к публикации: | 13 дек. 1994 г. |
Опубликована в печати: | 25 мая 1995 г. |
Опубликована online: | 18 нояб. 1999 г. |
Идентификаторы БД:
Web of science | WOS:A1995RC96300008 |
Scopus | 2-s2.0-0029308830 |
РИНЦ | 31094969 , 35697430 |
Chemical Abstracts | 1995:569034 |
Chemical Abstracts (print) | 123:60517 |
OpenAlex | W1995271136 |