Synthesis of Supported Heterogeneous Catalysts by Laser Ablation of Metallic Palladium in Supercritical Carbon Dioxide Medium.O.Parenago, A.Rybaltovsky, E.Epifanov, A.Shubny, G.Bragina, A.Lazhko, D.Khmelenin, V.Yusupov a. N.Minaev. Molecules

Авторы: Parenago O., Rybaltovsky A., Epifanov E., Shubny A., Bragina G., Lazhko A., Khmelenin D., Yusupov V., Minaev N.
Журнал: Molecules
Том: 25
Год издания: 2020
Издательство: MDPI
Местоположение издательства: Basel, Switzerland
Первая страница: 5807
Последняя страница: 5820
DOI: 10.3390/molecules25245807
Аннотация: Abstract: To obtain a supported heterogeneous catalyst, laser ablation of metallic palladium insupercritical carbon dioxide was performed in the presence of a carrier, microparticles of γ-alumina.The influence of the ablation process conditions—including supercritical fluid density, ablation,mixing time of the mixture, and laser wavelength—on the completeness and efficiency of the depositionof palladium particles on the surface of the carrier was studied. The obtained composites wereinvestigated by scanning and transmission electron microscopy using energy dispersive spectroscopy.We found that palladium particles were nanosized and had a narrow size distribution (2–8 nm).The synthesized composites revealed high activity as catalysts in the liquid-phase hydrogenationof diphenylacetylene.K
Добавил в систему: Рыбалтовский Алексей Ольгердович

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