VMoNbTeO Catalysts for Ethane Oxidative Dehydrogenation: The Modification by P, Sb and Bi to Influence on the Catalytic Stability Научная публикация
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Юбилейная научная конференция "XXI век: Химия в жизнь" 24-26 апр. 2019 , Омск |
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| Сборник | 21st Century: Chemistry to Life Сборник, 2019. ISBN 978-0-7354-1888-2. |
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| Журнал |
AIP Conference Proceedings
ISSN: 0094-243X , E-ISSN: 1551-7616 |
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| Вых. Данные | Год: 2019, Том: 2143, Номер статьи : 020029, Страниц : 5 DOI: 10.1063/1.5122928 | ||
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| Организации |
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Информация о финансировании (1)
| 1 | Российский научный фонд | 17-73-20073 |
Реферат:
Multicomponent VMoNbTe oxide catalysts are the most promising in the oxidative dehydrogenation of ethane to ethylene. Despite a high scientific attention, the problem of instability of this catalyst under reducing conditions remains unresolved. In this work, the effect of VMoNbTe modification by phosphorus, stibium and bismuth on the catalytic stability of the active M1 phase was studied. XRD and XPS data showed that due to homogeneous distribution in the bulk, introduction of Bi and Sb resulted in decrease of M1 phase content. Modification by P had less effect on the phase composition due to its surface enrichment. XPS showed the phosphate-like environment for phosphorus species, oxidized Sb species in form of Sb3+, or Sb5+, and Bi3+ state for the introduced cations. The catalytic stability tests were performed using developed express-test that involves high-temperature (up to 480°C) treatment in the reaction mixture with different ethane/oxygen ratio. The additives Bi and P have a positive effect on the stability of the catalyst, reducing the loss of catalytic characteristics when operating under severe reducing conditions.
Библиографическая ссылка:
Kardash T.Y.
, Lazareva E.V.
, Svintsitskiy D.A.
, Bondareva V.M.
VMoNbTeO Catalysts for Ethane Oxidative Dehydrogenation: The Modification by P, Sb and Bi to Influence on the Catalytic Stability
В сборнике 21st Century: Chemistry to Life. 2019. – ISBN 978-0-7354-1888-2. DOI: 10.1063/1.5122928 WOS Scopus РИНЦ CAPlus OpenAlex
VMoNbTeO Catalysts for Ethane Oxidative Dehydrogenation: The Modification by P, Sb and Bi to Influence on the Catalytic Stability
В сборнике 21st Century: Chemistry to Life. 2019. – ISBN 978-0-7354-1888-2. DOI: 10.1063/1.5122928 WOS Scopus РИНЦ CAPlus OpenAlex
Даты:
| Опубликована online: | 16 авг. 2019 г. |
Идентификаторы БД:
| Web of science: | WOS:000505769900029 |
| Scopus: | 2-s2.0-85071261242 |
| РИНЦ: | 41658974 |
| Chemical Abstracts: | 2019:2069952 |
| OpenAlex: | W2967805337 |