Oxidation of Benzene to Phenol by Nitrous Oxide: Activity of Iron in Zeolite Matrices of Various Composition Научная публикация
| Журнал |
Applied Catalysis A: General
ISSN: 0926-860X , E-ISSN: 1873-3875 |
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| Вых. Данные | Год: 2002, Том: 227, Номер: 1-2, Страницы: 143-157 Страниц : 15 DOI: 10.1016/S0926-860X(01)00932-2 | ||||
| Ключевые слова | Alpha-oxygen, Fe-ZSM-5, Nitrous oxide, Oxidation of benzene, Phenol, ZSM-5 (B, Al, Ga, Ti) | ||||
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Реферат:
Catalytic properties of Fe introduced in the pentasil type zeolite matrices of various composition (B-ZSM-5, Al-ZSM-5, Ga-ZSM-5, Ti-ZSM-5) have been studied. All the matrices were shown to be inert in the title reaction. However, upon iron introduction they may serve as a basis for the development of very active and selective catalysts. The amount of iron needed for this purpose depends dramatically on the matrix composition: Al-ZSM-5 and Ga-ZSM-5 zeolites exhibit high activity even in the presence of 0.01–0.03 wt.% Fe, while B-ZSM-5 and Ti-ZSM-5 zeolites need a 10–100 times more Fe.
The distinctions in zeolite activity relate to the fact that the formation of Fe-containing α-sites, catalyzing the reaction, strongly depends on the Brönsted acidity and proceeds with different efficiency in various matrices. But being formed, α-sites in their catalytic performance have only slight dependence on the matrix composition. Activity of B-ZSM-5, Al-ZSM-5, and Ti-ZSM-5 zeolites is described by a common dependence on the concentration of α-sites, revealing their identity in these matrices. In Ga-ZSM-5 matrix, α-sites exhibit a two to three times higher activity. The role of Fe admixtures in the literature disagreement on the origin of zeolite activity is discussed.
Библиографическая ссылка:
Pirutko L.V.
, Chernyavsky V.S.
, Uriarte A.
, Panov G.I.
Oxidation of Benzene to Phenol by Nitrous Oxide: Activity of Iron in Zeolite Matrices of Various Composition
Applied Catalysis A: General. 2002. V.227. N1-2. P.143-157. DOI: 10.1016/S0926-860X(01)00932-2 WOS Scopus РИНЦ CAPlusCA OpenAlex
Oxidation of Benzene to Phenol by Nitrous Oxide: Activity of Iron in Zeolite Matrices of Various Composition
Applied Catalysis A: General. 2002. V.227. N1-2. P.143-157. DOI: 10.1016/S0926-860X(01)00932-2 WOS Scopus РИНЦ CAPlusCA OpenAlex
Даты:
| Поступила в редакцию: | 25 июн. 2001 г. |
| Принята к публикации: | 18 окт. 2001 г. |
| Опубликована online: | 12 февр. 2002 г. |
| Опубликована в печати: | 8 мар. 2002 г. |
Идентификаторы БД:
| Web of science: | WOS:000174265400014 |
| Scopus: | 2-s2.0-0037040468 |
| РИНЦ: | 13413508 |
| Chemical Abstracts: | 2002:135112 |
| Chemical Abstracts (print): | 136:237432 |
| OpenAlex: | W174241045 |