M5O14-Like V-Mo-Nb Oxide Catalysts: Structure and Catalytic Performance Научная публикация
| Журнал |
Applied Catalysis A: General
ISSN: 0926-860X , E-ISSN: 1873-3875 |
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| Вых. Данные | Год: 2010, Том: 375, Номер: 1, Страницы: 26-36 Страниц : 11 DOI: 10.1016/j.apcata.2009.12.003 | ||
| Ключевые слова | Ethane oxidative dehydrogenation, Mo5O14, V-Mo-Nb oxides | ||
| Авторы |
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| Организации |
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Информация о финансировании (1)
| 1 | Российский фонд фундаментальных исследований | 07-03-00203 |
Реферат:
Within Mo5O14-like structural type for mixed V–Mo–Nb oxides, the effect of vanadium and niobium content and treatment temperature on the phase composition, structure and catalytic properties of the samples in oxidative dehydrogenation of ethane has been studied. The limits of V and Nb content in the ternary Mo5O14-like oxide are determined. V–Mo–Nb oxides are shown to be the substitution solid solutions of composition
(Mo0.6VzNb0.4−z)5O14 (0 < z < 0.2) based on binary oxide (Mo0.6Nb0.4)5O14. The structure of crystalline V–Mo–Nb oxides is refined. Crystallization of Mo5O14-like structure occurs at temperatures ≥550 °C. Below 550 °C, V–Mo–Nb oxides are nanocrystalline materials having a disordered layered structure with the interlayer distance of ca. 4 Å.
The structural model of nanocrystalline oxides is discussed. The role of Nb in the formation of ternary V–Mo–Nb oxide compounds is revealed, and the surface state of these oxides at different temperatures is analyzed. The low-temperature V–Mo–Nb oxides are the most active catalysts in the reaction of ethane oxidative dehydrogenation. They are characterized by the ratio V/Nb ≈ 1 in the Mo5O14-like structure.
Библиографическая ссылка:
Kardash T.Y.
, Plyasova L.M.
, Bondareva V.M.
, Andrushkevich T.V.
, Dovlitova L.S.
, Ischenko A.V.
, Nizovskii A.I.
, Kalinkin A.V.
M5O14-Like V-Mo-Nb Oxide Catalysts: Structure and Catalytic Performance
Applied Catalysis A: General. 2010. V.375. N1. P.26-36. DOI: 10.1016/j.apcata.2009.12.003 WOS Scopus РИНЦ OpenAlex CAPlusCA
M5O14-Like V-Mo-Nb Oxide Catalysts: Structure and Catalytic Performance
Applied Catalysis A: General. 2010. V.375. N1. P.26-36. DOI: 10.1016/j.apcata.2009.12.003 WOS Scopus РИНЦ OpenAlex CAPlusCA
Даты:
| Поступила в редакцию: | 21 авг. 2009 г. |
| Принята к публикации: | 2 дек. 2009 г. |
| Опубликована online: | 14 янв. 2010 г. |
| Опубликована в печати: | 26 февр. 2010 г. |
Идентификаторы БД:
| ≡ Web of science: | WOS:000275144200004 |
| ≡ Scopus: | 2-s2.0-74849093396 |
| ≡ РИНЦ: | 15316965 |
| ≡ OpenAlex: | W2085622340 |
| ≡ Chemical Abstracts: | 2010:129395 |
| ≡ Chemical Abstracts (print): | 152:430030 |