Single-Atom Alloy Pd1Ag10/CeO2–ZrO2 as a Promising Catalyst for Selective Alkyne Hydrogenation

Single-Atom Alloy Pd1Ag10/CeO2–ZrO2 as a Promising Catalyst for Selective Alkyne Hydrogenation Научная публикация

Журнал

Inorganics-Basel
ISSN: 2304-6740

Вых. Данные

Год: 2023, Том: 11, Номер: 4, Номер статьи : 150, Страниц : DOI: 10.3390/inorganics11040150

Авторы

Markov Pavel V. ¹ , Bragina Galina O. ¹ , Smirnova Nadezhda S. ¹ , Baeva Galina N. ¹ , Mashkovsky Igor S. ¹ , Gerasimov Evgeny Y. ² , Bukhtiyarov Andrey V. ² , Zubavichus Yan.V. ² , Stakheev Alexander Y. ¹

Организации

1	N. D. Zelinsky Institute of Organic Chemistry RAS, Leninsky Prospect 47, 119991 Moscow, Russia
2	G. K. Boreskov Institute of Catalysis, Siberian Branch of the Russian Academy of Sciences, Academician Lavrentiev Prospect 5, 630090 Novosibirsk, Russia

The effect of support on the performance of Pd1Ag10/Al2O3 and Pd1Ag10/CeO2–ZrO2 catalysts in the selective hydrogenation of diphenylacetylene (DPA) was studied. Characterization of the catalyst by DRIFTS-CO and HRTEM revealed the formation of a PdAg single-atom alloy (SAA) structure on the surface of PdAg nanoparticles, with Pd1 sites isolated by Ag atoms. It was found that the use of CeO2–ZrO2 as a carrier makes it possible to increase the activity of the Pd1Ag10 catalyst by a factor of three without loss of selectivity compared to the reference Pd1Ag10/Al2O3. According to the HRTEM data, this catalytic behavior can be explained by an increase in the dispersion of Pd1Ag10/CeO2–ZrO2 compared to its Pd1Ag10/Al2O3 counterpart. As evidenced by DRIFTS-CO data, the high selectivity of the Pd1Ag10/CeO2–ZrO2 sample presumably stems from the stability of the structure of isolated Pd1 sites on the surface of SAA Pd1Ag10/CeO2–ZrO2.

Markov P.V. , Bragina G.O. , Smirnova N.S. , Baeva G.N. , Mashkovsky I.S. , Gerasimov E.Y. , Bukhtiyarov A.V. , Zubavichus Y.V. , Stakheev A.Y.
Single-Atom Alloy Pd1Ag10/CeO2–ZrO2 as a Promising Catalyst for Selective Alkyne Hydrogenation
Inorganics-Basel. 2023. V.11. N4. 150 . DOI: 10.3390/inorganics11040150 WOS Scopus OpenAlex

Web of science:	WOS:000977511500001
Scopus:	2-s2.0-85153773971
OpenAlex:	W4362586507

БД	Цитирований
OpenAlex	10
Scopus	8
Web of science	9