Comparison of the Dynamics of n-Hexane in ZSM-5 and 5A Zeolite Structures Научная публикация
Журнал |
European Physical Journal E
ISSN: 1292-8941 |
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Вых. Данные | Год: 2003, Том: 12, Номер: 1, Страницы: 57-61 Страниц : 5 DOI: 10.1140/epje/i2003-10037-3 | ||||
Ключевые слова | NUCLEAR-MAGNETIC-RESONANCE; DEUTERIUM NMR-SPECTROSCOPY; NEUTRON SPIN-ECHO; MOLECULAR-DYNAMICS; INCLUSION-COMPOUNDS; H-2 NMR; DIFFUSION; BENZENE; SILICALITE; ALKANES | ||||
Авторы |
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Организации |
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Информация о финансировании (2)
1 | Российский фонд фундаментальных исследований | 00-03-22002 |
2 | French National Centre for Scientific Research |
Реферат:
The translational and rotational dynamics of n-hexane adsorbed in ZSM-5 and 5A zeolites has been studied by neutron scattering and deuterium solid-state NMR, at various temperatures. The dynamics of n-hexane is quite different in the two zeolites. In the ZSM-5 structure, the molecule sits in channel segments, the energy barrier between adjacent adsorption sites is small and fast anisotropic motions are observed. In the 5A zeolite, the molecule is adsorbed in αα -cages; the barrier between adjacent cages is larger so that the molecule spends a longer time exploring the volume of an αα -cage, leading to a more isotropic motion. The diffusion coefficient of the molecule is reduced by more than 4 orders of magnitude in 5A zeolite compared with ZSM-5.
Библиографическая ссылка:
Stepanov A.G.
, Shegai T.O.
, Luzgin M.V.
, Jobic H.
Comparison of the Dynamics of n-Hexane in ZSM-5 and 5A Zeolite Structures
European Physical Journal E. 2003. V.12. N1. P.57-61. DOI: 10.1140/epje/i2003-10037-3 WOS Scopus РИНЦ
Comparison of the Dynamics of n-Hexane in ZSM-5 and 5A Zeolite Structures
European Physical Journal E. 2003. V.12. N1. P.57-61. DOI: 10.1140/epje/i2003-10037-3 WOS Scopus РИНЦ
Даты:
Поступила в редакцию: | 1 янв. 2003 г. |
Опубликована в печати: | 1 сент. 2003 г. |
Опубликована online: | 14 окт. 2003 г. |
Идентификаторы БД:
Web of science | WOS:000186890400009 |
Scopus | 2-s2.0-0344961824 |
РИНЦ | 13419921 |
Chemical Abstracts | 2003:989304 |
Chemical Abstracts (print) | 140:223759 |
PMID (PubMed) | 15007680 |
OpenAlex | W2023961030 |