Tellurium NaX Zeolites II. Nature of Active Sites Научная публикация
Журнал |
Journal of Catalysis
ISSN: 0021-9517 , E-ISSN: 1090-2694 |
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Вых. Данные | Год: 1983, Том: 81, Номер: 2, Страницы: 369-374 Страниц : 6 DOI: 10.1016/0021-9517(83)90175-6 | ||||||
Авторы |
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Организации |
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Информация о финансировании (4)
1 | National Science Foundation | GP-39482 |
2 | National Science Foundation | CHE-77-10514 |
3 | Welch Foundation | |
4 | ConocoPhillips (United States) |
Реферат:
An unusual dehydrocyclization catalyst can be prepared from an intimate mixture of NaX zeolite and tellurium metal. Careful X-ray diffraction studies by researchers at Mobil Research and Development Company indicated that the active site was a Te2- species nestled in the supercage of the zeolite and coordinated to sodium ions in the zeolite. Our ESCA spectra, however, point toward elemental Te0 as the active sites, and sodium NMR data confirm that the Te is coordinated to sodium ions in the host oxide. These sites are capable of accommodating up to 2H/Te in an activated adsorption process.
A dehydrogenation mechanism consistent with the observed kinetics involves the simultaneous removal of two hydrogen atoms by these Te0 sites in a rate limiting step.
Библиографическая ссылка:
Price G.L.
, Ismagilov Z.R.
, Hightower J.W.
Tellurium NaX Zeolites II. Nature of Active Sites
Journal of Catalysis. 1983. V.81. N2. P.369-374. DOI: 10.1016/0021-9517(83)90175-6 WOS Scopus РИНЦ
Tellurium NaX Zeolites II. Nature of Active Sites
Journal of Catalysis. 1983. V.81. N2. P.369-374. DOI: 10.1016/0021-9517(83)90175-6 WOS Scopus РИНЦ
Даты:
Поступила в редакцию: | 21 окт. 1982 г. |
Опубликована в печати: | 1 июн. 1983 г. |
Опубликована online: | 24 мая 2004 г. |
Идентификаторы БД:
Web of science | WOS:A1983QT13200011 |
Scopus | 2-s2.0-48749145673 |
РИНЦ | 23670740 |
Chemical Abstracts | 1983:205044 |
Chemical Abstracts (print) | 98:205044 |
OpenAlex | W2003846095 |