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Design of efficient supported Pd-Co catalysts for selective hydrogenation of acetylene Научная публикация

Журнал Journal of Catalysis
ISSN: 0021-9517 , E-ISSN: 1090-2694
Вых. Данные Год: 2024, Том: 432, Номер статьи : 115417, Страниц : 13 DOI: 10.1016/j.jcat.2024.115417
Ключевые слова Pd-Co alloy, Bimetallic catalyst, Carbon support, Selective acetylene hydrogenation, Ethylene production
Авторы Yurpalova Daria V. 1 , Afonasenko Tatyana N. 1 , Prosvirin Igor P. 2 , Bukhtiyarov Andrey V. 2 , Kovtunova Larisa M. 2 , Vinokurov Zakhar S. 2,3 , Trenikhin Mikhail V. 1 , Gerasimov Evgeny Yu. 2 , Khramov Evgeny V. 4 , Shlyapin Dmitry A. 1
Организации
1 Center of New Chemical Technologies BIC, Boreskov Institute of Catalysis
2 Boreskov Institute of Catalysis
3 Synchrotron Radiation Facility SKIF, Boreskov Institute of Catalysis
4 National Research Center “Kurchatov Institute”

Информация о финансировании (1)

1 Министерство науки и высшего образования Российской Федерации FWUR-2024-0039

Реферат: The research is devoted to the study of active component formation in the novel Pd-Co catalysts supported on carbon material Sibunit. It was shown that 0.5 %Pd–0.5 %Co/C samples exhibit high ethylene yield in the acetylene hydrogenation process due to the presence of fcc PdxCo(1-x) particles. According to in situ XRD-TPR analysis, solid solution formation begins during the reduction of samples in H2 at T ≥ 500 ◦C. Using the EXAFS, XRD and EDX it was established that H2-treatment at 500 ◦C leads to the formation of ~Pd0.6Co0.4 particles and an increase in the reduction temperature to 600 and 700 ◦C is accompanied by the enrichment of the Pd-Co-phase with cobalt to ~Pd0.5Co0.5 and ~Pd0.45Co0.55 compositions, respectively. The ethylene yield on Pd-Co/C catalysts reduced at 500, 600 and 700 ◦C is 56, 66 and 68 %, respectively, which significantly exceeds the ethylene quantity obtained on monometallic Pd/C samples (~52 %). It is assumed that the excellent selectivity of Pd-Co/C samples treated in H2 at 600 and 700 ◦C is due to an increase in the amount of palladium atoms surrounded by cobalt and a change in the palladium electronic state (XPS).
Библиографическая ссылка: Yurpalova D.V. , Afonasenko T.N. , Prosvirin I.P. , Bukhtiyarov A.V. , Kovtunova L.M. , Vinokurov Z.S. , Trenikhin M.V. , Gerasimov E.Y. , Khramov E.V. , Shlyapin D.A.
Design of efficient supported Pd-Co catalysts for selective hydrogenation of acetylene
Journal of Catalysis. 2024. V.432. 115417 :1-13. DOI: 10.1016/j.jcat.2024.115417 WOS Scopus РИНЦ OpenAlex
Даты:
Поступила в редакцию: 16 нояб. 2023 г.
Принята к публикации: 5 мар. 2024 г.
Опубликована online: 6 мар. 2024 г.
Идентификаторы БД:
Web of science: WOS:001224041900001
Scopus: 2-s2.0-85187198089
РИНЦ: 66540084
OpenAlex: W4392504695
Цитирование в БД:
БД Цитирований
OpenAlex 1
Scopus 1
РИНЦ 1
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