1H MAS NMR Studies of Alumina-Supported Metal Oxide Catalysts Научная публикация
Журнал |
Journal of Physical Chemistry (up to 1996)
ISSN: 0022-3654 |
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Вых. Данные | Год: 1994, Том: 98, Номер: 51, Страницы: 13621-13624 Страниц : 4 DOI: 10.1021/j100102a030 | ||||
Ключевые слова | SURFACE; SPECTROSCOPY; Al2O3; ZrO2; TiO2; SiO2 | ||||
Авторы |
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Организации |
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Реферат:
The interactions of two-dimensional vanadium oxide and molybdenum oxide overlayers with the surface hydroxyls of an alumina support were examined with H-1 MAS NMR spectroscopy. The measurements demonstrated that these surface metal oxide overlayers are homogeneously distributed over the alumina surface and essentially titrate all the accessible surface hydroxyls at monolayer coverage. The investigation also revealed that there are a small number of protons formed near monolayer coverage, suspected of being Bronsted acid sites, which are not titrated by these metal oxide overlayers and are capable of undergoing H/D exchange. In addition, there are protons in blocked pores of the alumina support that neither are accessible to the metal oxide overlayers nor are capable of undergoing H/D exchange. The present H-1 MAS NMR results are in excellent agreement with corresponding IR spectroscopy results on the same catalysts.
Библиографическая ссылка:
Mastikhin V.M.
, Nosov A.V.
, Terskikh V.V.
, Zamaraev K.I.
, Wachs I.E.
1H MAS NMR Studies of Alumina-Supported Metal Oxide Catalysts
Journal of Physical Chemistry (up to 1996). 1994. V.98. N51. P.13621-13624. DOI: 10.1021/j100102a030 WOS Scopus РИНЦ
1H MAS NMR Studies of Alumina-Supported Metal Oxide Catalysts
Journal of Physical Chemistry (up to 1996). 1994. V.98. N51. P.13621-13624. DOI: 10.1021/j100102a030 WOS Scopus РИНЦ
Даты:
Поступила в редакцию: | 10 мая 1994 г. |
Принята к публикации: | 12 окт. 1994 г. |
Опубликована в печати: | 1 дек. 1994 г. |
Опубликована online: | 1 мая 2002 г. |
Идентификаторы БД:
Web of science | WOS:A1994PY49100030 |
Scopus | 2-s2.0-0000527411 |
РИНЦ | 28759582 |
Chemical Abstracts | 1994:709178 |
Chemical Abstracts (print) | 121:309178 |
OpenAlex | W2084192996 |