Regioselective H/D Exchange of Propane on Zn/H-MFI Zeolite Научная публикация
Журнал |
Catalysis Letters
ISSN: 1011-372X , E-ISSN: 1572-879X |
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Вых. Данные | Год: 2007, Том: 114, Номер: 1-2, Страницы: 85-90 Страниц : 6 DOI: 10.1007/s10562-007-9044-6 | ||||||
Ключевые слова | H/D exchange, In situ 1H MAS NMR spectroscopy, Kinetics, Mechanism, Propane, Zn/H-MFI zeolite | ||||||
Авторы |
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Организации |
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Информация о финансировании (4)
1 | German Research Foundation | FR 902/15 |
2 | Российский фонд фундаментальных исследований | 04-03-32372 |
3 | International Association for the Promotion of Co-operation with Scientists from the New Independent States of the Former Soviet Union | 03-51-5286 |
4 | Российский фонд фундаментальных исследований | 06-03-32914 |
Реферат:
The hydrogen exchange for propane-d8 adsorbed on zeolite Zn/H-MFI has been studied by1H MAS NMR spectroscopy in situ within the temperature range of 420–490 K. Kinetic measurements of the H/D exchange between the acidic hydroxyl groups of the zeolite and the adsorbed deuterated propane molecules show that only methyl groups of the alkane are involved in the exchange. Two mechanisms are proposed to rationalize the regioselectivity of the exchange: (i) propane dehydrogenation on Zn-sites followed by protonation of propene by acidic OH groups in accordance to the Markovnikov’s rule and abstraction of deuteride ion from another propane molecule; (ii) the reversible heterolytic dissociative adsorption of propane to form Zn-propyl species and acidic OH groups.
Библиографическая ссылка:
Stepanov A.G.
, Arzumanov S.S.
, Parmon V.N.
, Kolyagin Y.G.
, Ivanova I.I.
, Freude D.
Regioselective H/D Exchange of Propane on Zn/H-MFI Zeolite
Catalysis Letters. 2007. V.114. N1-2. P.85-90. DOI: 10.1007/s10562-007-9044-6 WOS Scopus РИНЦ
Regioselective H/D Exchange of Propane on Zn/H-MFI Zeolite
Catalysis Letters. 2007. V.114. N1-2. P.85-90. DOI: 10.1007/s10562-007-9044-6 WOS Scopus РИНЦ
Даты:
Поступила в редакцию: | 15 янв. 2007 г. |
Принята к публикации: | 10 февр. 2007 г. |
Опубликована в печати: | 1 мар. 2007 г. |
Опубликована online: | 7 мар. 2007 г. |
Идентификаторы БД:
Web of science | WOS:000246082900015 |
Scopus | 2-s2.0-34247561719 |
РИНЦ | 13546841 |
Chemical Abstracts | 2007:465005 |
Chemical Abstracts (print) | 147:52561 |
OpenAlex | W2062846691 |