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Significant Influence of Zn on Activation of the C-H Bonds of Small Alkanes by Brønsted Acid Sites of Zeolite Научная публикация

Журнал ChemPhysChem
ISSN: 1439-4235 , E-ISSN: 1439-7641
Вых. Данные Год: 2008, Том: 9, Номер: 17, Страницы: 2559-2563 Страниц : 5 DOI: 10.1002/cphc.200800569
Ключевые слова Alkanes, H/D exchange, Heterogeneous catalysis, Solid-state NMR, Zeolites
Авторы Stepanov Alexander G. 1 , Arzumanov Sergei S. 1 , Gabrienko Anton A. 1 , Parmon Valentin N. 1 , Ivanova Irina I. 2 , Freude Dieter 3
Организации
1 Boreskov Institute of Catalysis, Siberian Branch of the Russian Academy of Sciences, Prospekt Akademika Lavrentieva 5, Novosibirsk 630090 (Russia)
2 Department of Chemistry, Moscow State University, Lenin Hills 1, Bld. 3, Moscow 119992 (Russia)
3 Abteilung Grenzflchenphysik, Universitt Leipzig, Linnstraße 5, 04103 Leipzig (Germany)

Информация о финансировании (3)

1 Российский фонд фундаментальных исследований 07-03-00136
2 German Research Foundation FR 902/15
3 International Association for the Promotion of Co-operation with Scientists from the New Independent States of the Former Soviet Union 03-51-5286

Реферат: Herein, we analyze earlier obtained and new data about peculiarities of the H/D hydrogen exchange of small C1–n-C4 alkanes on Zn-modified high-silica zeolites ZSM-5 and BEA in comparison with the exchange for corresponding purely acidic forms of these zeolites. This allows us to identify an evident promoting effect of Zn on the activation of CH bonds of alkanes by zeolite Brønsted sites. The effect of Zn is demonstrated by observing the regioselectivity of the H/D exchange for propane and n-butane as well as by the increase in the rate and a decrease in the apparent activation energy of the exchange for all C1–n-C4 alkanes upon modification of zeolites with Zn. The influence of Zn on alkane activation has been rationalized by dissociative adsorption of alkanes on Zn oxide species inside zeolite pores, which precedes the interaction of alkane with Brønsted acid sites.
Библиографическая ссылка: Stepanov A.G. , Arzumanov S.S. , Gabrienko A.A. , Parmon V.N. , Ivanova I.I. , Freude D.
Significant Influence of Zn on Activation of the C-H Bonds of Small Alkanes by Brønsted Acid Sites of Zeolite
ChemPhysChem. 2008. V.9. N17. P.2559-2563. DOI: 10.1002/cphc.200800569 WOS Scopus РИНЦ CAPlusCA PMID OpenAlex
Даты:
Поступила в редакцию: 28 авг. 2008 г.
Опубликована online: 29 окт. 2008 г.
Опубликована в печати: 1 дек. 2008 г.
Идентификаторы БД:
Web of science: WOS:000261721700018
Scopus: 2-s2.0-57349108644
РИНЦ: 13588167
Chemical Abstracts: 2008:1527272
Chemical Abstracts (print): 150:472143
PMID (PubMed): 18972491
OpenAlex: W2139675388
Цитирование в БД:
БД Цитирований
Web of science 66
Scopus 72
РИНЦ 69
OpenAlex 72
Альметрики: