Oxidative Dehydrogenation of Ethane over M1 MoVNbTeO Catalysts Modified by the Addition of Nd, Mn, Ga or Ge Научная публикация
| Конференция |
6th European Conference on Environmental Applications of Advanced Oxidation Processes 26-30 июн. 2019 , Portorož – Portorose |
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| Журнал |
Catalysis Today
ISSN: 0920-5861 , E-ISSN: 1873-4308 |
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| Вых. Данные | Год: 2020, Том: 361, Страницы: 50-56 Страниц : 7 DOI: 10.1016/j.cattod.2019.12.029 | ||||
| Ключевые слова | Gallium; Germanium; Manganese; MoVNbTeO; Neodymium; Oxidative dehydrogenation of ethane | ||||
| Авторы |
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| Организации |
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Информация о финансировании (1)
| 1 | Российский научный фонд | 17-73-20073 |
Реферат:
Modification by Nd, Mn, Ga, and Ge substantially affect both physicochemical and catalytic properties of MoVNbTeO oxides in the oxidative dehydrogenation of ethane (ODE). The introduction of modifying additives changes the content of the M1 phase, surface acidity, and surface composition. It does not have an influence on the state of Mo, V, Nb, and Te on catalyst surface, but it induces surface enrichment (Ga, Mn) or depletion (Ge, Nd) by the modifying element. All of these additives have positive effects on catalytic properties at the M/Mo (M = modifying element) ratio of 0.0075 ÷ 0.025. They exhibit an increase of activity and prevent ethylene over-oxidation. The relationship between the rate constant of total ethane transformation and the M1 content confirms that this phase is active in ODE. The correlation between ethylene selectivity and the relative number of intermediate acid sites is revealed, indicating the role of surface acidity on ethylene over-oxidation. © 2019 Elsevier B.V.
Библиографическая ссылка:
Lazareva E.V.
, Bondareva V.M.
, Svintsitskiy D.A.
, Ishchenko A.V.
, Marchuk A.S.
, Kovalev E.P.
, Kardash T.Y.
Oxidative Dehydrogenation of Ethane over M1 MoVNbTeO Catalysts Modified by the Addition of Nd, Mn, Ga or Ge
Catalysis Today. 2020. V.361. P.50-56. DOI: 10.1016/j.cattod.2019.12.029 WOS Scopus РИНЦ CAPlus OpenAlex
Oxidative Dehydrogenation of Ethane over M1 MoVNbTeO Catalysts Modified by the Addition of Nd, Mn, Ga or Ge
Catalysis Today. 2020. V.361. P.50-56. DOI: 10.1016/j.cattod.2019.12.029 WOS Scopus РИНЦ CAPlus OpenAlex
Даты:
| Поступила в редакцию: | 30 сент. 2019 г. |
| Принята к публикации: | 24 дек. 2019 г. |
| Опубликована online: | 28 дек. 2019 г. |
| Опубликована в печати: | 1 февр. 2021 г. |
Идентификаторы БД:
| Web of science: | WOS:000598224600009 |
| Scopus: | 2-s2.0-85077344579 |
| РИНЦ: | 43231990 |
| Chemical Abstracts: | 2020:45112 |
| OpenAlex: | W2998403101 |