H/D Exchange of Ethane on In-modified BEA Zeolite Investigated by 1H MAS NMR Научная публикация
Журнал |
Microporous and Mesoporous Materials
ISSN: 1387-1811 , E-ISSN: 1873-3093 |
||||
---|---|---|---|---|---|
Вых. Данные | Год: 2025, Том: 398, Номер статьи : 113824, Страниц : 10 DOI: 10.1016/j.micromeso.2025.113824 | ||||
Авторы |
|
||||
Организации |
|
Информация о финансировании (2)
1 | Российский научный фонд | 22-13-00029 |
2 | Министерство науки и высшего образования Российской Федерации (с 15 мая 2018) | FWUR-2024-0032 |
Реферат:
H/D hydrogen exchange between ethane-d6 and Brønsted acid sites (BAS) of In-modified BEA zeolites (In+/H-BEA and InO+/H-BEA) in comparison with the exchange on pure H-form BEA zeolite (H-BEA) has been studied by 1H MAS NMR spectroscopy at 453−553 K. Kinetic measurements show that three types of surface OH groups, the bridged SiOHAl, extra-framework AlOH, and strongly acidic SiOH, are involved in the exchange with ethane-d6 on H-BEA zeolite with similar reaction rates. In case of the presence of oxo-cationic InO+ species in zeolite pores, the rate of H/D exchange increases significantly and the activation energy of the exchange decreases as compared to the rate and the activation energy on H-BEA and In+/H-BEA zeolites. The possible reaction mechanisms of the exchange for In-modified zeolites are discussed based on the analysis of the kinetic parameters.
Библиографическая ссылка:
Arzumanov S.S.
, Gabrienko A.A.
, Toktarev A.V.
, Freude D.
, Stepanov A.G.
H/D Exchange of Ethane on In-modified BEA Zeolite Investigated by 1H MAS NMR
Microporous and Mesoporous Materials. 2025. V.398. 113824 :1-10. DOI: 10.1016/j.micromeso.2025.113824 Scopus OpenAlex
H/D Exchange of Ethane on In-modified BEA Zeolite Investigated by 1H MAS NMR
Microporous and Mesoporous Materials. 2025. V.398. 113824 :1-10. DOI: 10.1016/j.micromeso.2025.113824 Scopus OpenAlex
Даты:
Поступила в редакцию: | 26 июн. 2025 г. |
Принята к публикации: | 21 авг. 2025 г. |
Опубликована online: | 21 авг. 2025 г. |
Опубликована в печати: | 1 дек. 2025 г. |
Идентификаторы БД:
Scopus: | 2-s2.0-105013840748 |
OpenAlex: | W4413451966 |
Цитирование в БД:
Пока нет цитирований