Selective Hydrogenation of Acetylene over Pd-Co/C Catalysts: The Modifying Effect of Cobalt Научная публикация
| Конференция |
VII International School-Conference for Young Scientists "Catalysis: from Science to Industry" 11-15 окт. 2022 , Tomsk |
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| Журнал |
Catalysts
, E-ISSN: 2073-4344 |
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| Вых. Данные | Год: 2023, Том: 13, Номер статьи : 739, Страниц : 17 DOI: 10.3390/catal13040739 | ||||
| Ключевые слова | bimetallic catalyst; Pd-Co; carbon support; selective acetylene hydrogenation; ethylene production | ||||
| Авторы |
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| Организации |
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Информация о финансировании (1)
| 1 | Министерство науки и высшего образования Российской Федерации | 0239-2021-0002 |
Реферат:
Novel bimetallic Pd-Co catalysts supported on the carbonmaterial Sibunitwere synthesized by an incipient wetness impregnationmethod and used for ethylene production by selective acetylene hydrogenation. It has been established that an increase in the Pd:Co molar ratio from 1:0 to 1:2 in 0.5%Pd-Co/C catalysts, treated in hydrogen at 500 C, leads to an increase in the ethylene selectivity from 60 to 67% (T = 45 C). The selectivity does not change with a further increase in the modifier concentration. The catalysts were investigated by TPR-H2, XRD, TEM HR, EDS, and XPS methods. It was shown that palladium and cobalt in the 0.5%Pd-Co/C samples form Pd(1 x)Cox phases of solid solutions with different compositions depending on the Pd:Co ratio. The cobalt concentration in the Pd-Co particles increases with an increase in the Pd:Co ratio up to 1:2 and then remains at a constant level. In addition, monometallic Co particles were present in the samples with the Pd:Co ratio higher then 1:2. The optimal combination of catalytic properties (the ethylene yield is 62–63%) is typical for catalysts with a Pd:Co molar ratio of 1:2–1:4. which is mainly due to the presence of bimetallic particles containing ~41–43% by at. of cobalt.
Библиографическая ссылка:
Yurpalova D.V.
, Afonasenko T.N.
, Prosvirin I.P.
, Bukhtiyarov A.V.
, Panafidin M.A.
, Vinokurov Z.S.
, Trenikhin M.V.
, Gerasimov E.Y.
, Gulyaeva T.I.
, Kovtunova L.M.
, Shlyapin D.A.
Selective Hydrogenation of Acetylene over Pd-Co/C Catalysts: The Modifying Effect of Cobalt
Catalysts. 2023. V.13. 739 :1-17. DOI: 10.3390/catal13040739 WOS Scopus РИНЦ OpenAlex
Selective Hydrogenation of Acetylene over Pd-Co/C Catalysts: The Modifying Effect of Cobalt
Catalysts. 2023. V.13. 739 :1-17. DOI: 10.3390/catal13040739 WOS Scopus РИНЦ OpenAlex
Даты:
| Поступила в редакцию: | 17 мар. 2023 г. |
| Принята к публикации: | 11 апр. 2023 г. |
| Опубликована в печати: | 13 апр. 2023 г. |
| Опубликована online: | 13 апр. 2023 г. |
Идентификаторы БД:
| Web of science: | WOS:000979339900001 |
| Scopus: | 2-s2.0-85153775914 |
| РИНЦ: | 53959161 |
| OpenAlex: | W4365514561 |