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Article

Hybrid Pd-Nanoparticles within Polymeric Network in Selective Hydrogenation of Alkynols: Influence of Support Porosity

by
Linda Z. Nikoshvili
1,*,
Alexander Y. Popov
2,
Alexey V. Bykov
1,
Alexander I. Sidorov
1 and
Lioubov Kiwi-Minsker
1,3,4,*
1
Department of Biotechnology, Chemistry and Standardization, Tver State Technical University, A. Nikitina Str., 22, 170026 Tver, Russia
2
A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 119991 Moscow, Russia
3
Regional Technological Centre, Tver State University, Zhelyabova Str., 33, 170100 Tver, Russia
4
Ecole Polytechnique Fédérale de Lausanne, GGRC-ISIC-EPFL, CH-1015 Lausanne, Switzerland
*
Authors to whom correspondence should be addressed.
Molecules 2022, 27(12), 3842; https://doi.org/10.3390/molecules27123842
Submission received: 18 May 2022 / Revised: 6 June 2022 / Accepted: 11 June 2022 / Published: 15 June 2022
(This article belongs to the Special Issue Catalysis by Hybrid Materials)
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Abstract

This work is addressing the selective hydrogenation of alkynols over hybrid catalysts containing Pd-nanoparticles, within newly synthesized hyper-cross-linked polystyrenes (HPS). Alkynols containing C5, C10, and C20 with a terminal triple bond, which are structural analogues or direct semi-products of fragrant substances and fat-soluble vitamins, have been studied. Selective hydrogenation was carried out in a batch mode (ambient hydrogen pressure, at 90 °C, in toluene solvent), using hybrid Pd catalysts with low metal content (less than 0.2 wt.%). The microporous and mesoporous HPS were both synthesized and used as supports in order to address the influence of porosity. Synthesized catalysts were shown to be active and selective: in the case of C5, hydrogenation selectivity to the target product was more than 95%, at close to complete alkynol conversion. Mesoporous catalysts have shown some advantages in hydrogenation of long-chain alkynols.
Keywords: polymeric catalysts; hydrogenation of alkynols; palladium; hyper-cross-linked polystyrene; catalyst support porosity polymeric catalysts; hydrogenation of alkynols; palladium; hyper-cross-linked polystyrene; catalyst support porosity
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MDPI and ACS Style

Nikoshvili, L.Z.; Popov, A.Y.; Bykov, A.V.; Sidorov, A.I.; Kiwi-Minsker, L. Hybrid Pd-Nanoparticles within Polymeric Network in Selective Hydrogenation of Alkynols: Influence of Support Porosity. Molecules 2022, 27, 3842. https://doi.org/10.3390/molecules27123842

AMA Style

Nikoshvili LZ, Popov AY, Bykov AV, Sidorov AI, Kiwi-Minsker L. Hybrid Pd-Nanoparticles within Polymeric Network in Selective Hydrogenation of Alkynols: Influence of Support Porosity. Molecules. 2022; 27(12):3842. https://doi.org/10.3390/molecules27123842

Chicago/Turabian Style

Nikoshvili, Linda Z., Alexander Y. Popov, Alexey V. Bykov, Alexander I. Sidorov, and Lioubov Kiwi-Minsker. 2022. "Hybrid Pd-Nanoparticles within Polymeric Network in Selective Hydrogenation of Alkynols: Influence of Support Porosity" Molecules 27, no. 12: 3842. https://doi.org/10.3390/molecules27123842

APA Style

Nikoshvili, L. Z., Popov, A. Y., Bykov, A. V., Sidorov, A. I., & Kiwi-Minsker, L. (2022). Hybrid Pd-Nanoparticles within Polymeric Network in Selective Hydrogenation of Alkynols: Influence of Support Porosity. Molecules, 27(12), 3842. https://doi.org/10.3390/molecules27123842

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