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Effect of reductive treatment duration on the structure and properties of Pd−Zn/C catalysts for liquid-phase acetylene hydrogenation Научная публикация

Журнал ChemCatChem
ISSN: 1867-3880 , E-ISSN: 1867-3899
Вых. Данные Год: 2022, Том: 14, Номер: 21, Номер статьи : e202200893, Страниц : 8 DOI: 10.1002/cctc.202200893
Ключевые слова bimetallic catalyst, palladium, EXAFS spectroscopy, hydrogenation, PdZn
Авторы Glyzdova Daria V. 1 , Afonasenko Tatyana N. 1 , Khramov Evgeny V. 2 , Trenikhin Mikhail V. 1 , Prosvirin Igor P. 3 , Shlyapin Dmitry A. 1
Организации
1 Center of New Chemical Technologies BIC, Boreskov Institute of Catalysis
2 National Research Center “Kurchatov Institute”
3 Federal Research Center Boreskov Institute of Catalysis

Информация о финансировании (1)

1 Министерство науки и высшего образования Российской Федерации 0239-2021-0002

Реферат: Structural features of bimetallic Pd−Zn catalysts supported on Sibunit carbon material were studied by EXAFS, TEM, XRD and XPS methods, depending on the heat treatment conditions in hydrogen. It was found that supported particles of PdZn intermetallic compound of tetragonal structure are formed in all samples. An increase in the duration of catalyst reduction in H2 at 500 °C from 1 to 20 hours leads to an increase in the amount of PdZn intermetallic particles (dav=2–3 nm), which is confirmed by the increasing of the Pd−Zn coordination number from 2.4 to 4.3 and by the decreasing of the surface Pd0/PdZn ratio from 0.63 to 0.18. The observed changes in the nature and structure of active sites provide an increase in the ethylene selectivity of Pd−Zn/C catalysts in liquid-phase acetylene hydrogenation.
Библиографическая ссылка: Glyzdova D.V. , Afonasenko T.N. , Khramov E.V. , Trenikhin M.V. , Prosvirin I.P. , Shlyapin D.A.
Effect of reductive treatment duration on the structure and properties of Pd−Zn/C catalysts for liquid-phase acetylene hydrogenation
ChemCatChem. 2022. V.14. N21. e202200893 :1-8. DOI: 10.1002/cctc.202200893 WOS Scopus РИНЦ OpenAlex
Даты:
Поступила в редакцию: 14 июл. 2022 г.
Принята к публикации: 13 сент. 2022 г.
Опубликована online: 7 окт. 2022 г.
Опубликована в печати: 8 нояб. 2022 г.
Идентификаторы БД:
Web of science: WOS:000864931300001
Scopus: 2-s2.0-85139505293
РИНЦ: 52253191
OpenAlex: W4295803913
Цитирование в БД:
БД Цитирований
Web of science 2
OpenAlex 9
Scopus 8
Альметрики: