Liquid-Phase Hydrogenation of Internal and Terminal Alkynes on Pd–Ag/Al2O3 Catalyst

Liquid-Phase Hydrogenation of Internal and Terminal Alkynes on Pd–Ag/Al2O3 Catalyst Full article

Journal

Kinetics and Catalysis
ISSN: 1608-3210 , E-ISSN: 0023-1584

Output data

Year: 2019, Volume: 60, Number: 5, Pages: 642-649 Pages count : 8 DOI: 10.1134/s0023158419050069

Authors

Rassolov A.V. ¹ , Bragina G.O. ¹ , Baeva G.N. ¹ , Smirnova N.S. ¹ , Kazakov A.V. ¹ , Mashkovsky I.S. ¹ , Stakheev A.Yu. ¹

Affiliations

1	Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 119991, Moscow, Russia

The structure and catalytic properties of a bimetallic Pd–Ag/α-Al2O3 catalyst are studied in the liquid-phase hydrogenation of substituted internal and terminal alkynes using diphenylacetylene, phenylacetylene, 1-phenyl-1-propyne, and 1-phenyl-1-butyne as sample alkynes. IR spectroscopy of adsorbed CO, X‑ray diffraction (XRD), and electron microscopy were used to show that the active sites on the Pd–Ag nanoparticle surface are Pd1 sites. The synthesized Pd–Ag/α-Al2O3 catalyst shows a much higher selectivity in the hydrogenation of internal symmetric and asymmetric alkynes compared to the monometallic Pd/α‑Al2O3 sample. Also, it was found in the hydrogenation of diphenylacetylene and 1-phenyl-1-propyne on Pd–Ag/α-Al2O3 that the rate of the stage of desired olefin hydrogenation substantially decreases, which favors the kinetic control of the process.

Rassolov A.V. , Bragina G.O. , Baeva G.N. , Smirnova N.S. , Kazakov A.V. , Mashkovsky I.S. , Stakheev A.Y.
Liquid-Phase Hydrogenation of Internal and Terminal Alkynes on Pd–Ag/Al2O3 Catalyst
Kinetics and Catalysis. 2019. V.60. N5. P.642-649. DOI: 10.1134/s0023158419050069 WOS Scopus OpenAlex

Web of science:	WOS:000490016900010
Scopus:	2-s2.0-85073227621
OpenAlex:	W2979830681

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OpenAlex	10
Scopus	8
Web of science	8