51V And 31P NMR Studies of VOx/TiO2 Catalysts Modified by Phosphorous Научная публикация
| Журнал |
Journal of Molecular Catalysis A: Chemical
ISSN: 1381-1169 |
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| Вых. Данные | Год: 2000, Том: 162, Номер: 1-2, Страницы: 381-390 Страниц : 10 DOI: 10.1016/S1381-1169(00)00305-8 | ||
| Ключевые слова | MQMAS, NMR, Phosphorous, SATRAS, Solid-state, Spin mapping echo, Titanium oxide, Vanadium | ||
| Авторы |
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| Организации |
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Информация о финансировании (3)
| 1 | Российский фонд фундаментальных исследований | 98-03-32323 |
| 2 | North Atlantic Treaty Organization | SfP-971984 |
| 3 | International Association for the Promotion of Co-operation with Scientists from the New Independent States of the Former Soviet Union | IR-97-0059 |
Реферат:
Phosphorous-doped VOx/TiO2 catalysts prepared by the spray-drying method and treated under catalytic reaction, as well as individual phases (αI-, αII-, β-) of VOPO4 were studied using modern high-resolution solid-state NMR techniques, including fast magic angle spinning (MAS), combined with the analysis of rotational satellites intensities by the satellite transition spectroscopy (SATRAS) method; 2D triple-quantum, quintuple-quantum MAS NMR, and spin mapping echo experiments. The simultaneous determination of chemical shielding anisotropy and quadrupole tensor parameters, as well as their distributions, permits to draw a conclusion on the local environment of vanadium sites in the catalysts. The formation of a triple V–P–Ti compound in phosphorous-doped VOx/TiO2 catalysts has been revealed. Only one type of slightly distorted tetrahedral vanadium atoms bound via oxygen to phosphorous was found in this compound. The very large distribution of the quadropole constant points to the irregular structure of this compound.
Библиографическая ссылка:
Lapina O.B.
, Khabibulin D.F.
, Shubin A.A.
, Bondareva V.M.
51V And 31P NMR Studies of VOx/TiO2 Catalysts Modified by Phosphorous
Journal of Molecular Catalysis A: Chemical. 2000. V.162. N1-2. P.381-390. DOI: 10.1016/S1381-1169(00)00305-8 WOS Scopus РИНЦ CAPlusCA OpenAlex
51V And 31P NMR Studies of VOx/TiO2 Catalysts Modified by Phosphorous
Journal of Molecular Catalysis A: Chemical. 2000. V.162. N1-2. P.381-390. DOI: 10.1016/S1381-1169(00)00305-8 WOS Scopus РИНЦ CAPlusCA OpenAlex
Даты:
| Опубликована online: | 26 окт. 2000 г. |
| Опубликована в печати: | 20 нояб. 2000 г. |
Идентификаторы БД:
| Web of science: | WOS:000165621200032 |
| Scopus: | 2-s2.0-0034693821 |
| РИНЦ: | 29445392 |
| Chemical Abstracts: | 2000:893072 |
| Chemical Abstracts (print): | 134:33387 |
| OpenAlex: | W2186018044 |