Recyclable Magnetic Microporous Organic Polymer (MOP) Encapsulated with Palladium Nanoparticles and Co/C Nanobeads for Hydrogenation Reactions
| Autor: | Sharif Najafishirtari, Petr Martin, Oliver Reiser, Lisa Stadler, Maryam Homafar, Massimo Colombo, Radek Zboril, Jian Zhi, Manoj B. Gawande, Andreas Hartl |
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| Rok vydání: | 2018 |
| Předmět: |
chemistry.chemical_classification
Materials science Renewable Energy Sustainability and the Environment General Chemical Engineering chemistry.chemical_element 02 engineering and technology General Chemistry Polymer Microporous material 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Toluene 0104 chemical sciences MOPS Catalysis chemistry.chemical_compound Monomer chemistry Chemical engineering Nitro Environmental Chemistry 0210 nano-technology Palladium |
| Zdroj: | ACS Sustainable Chemistry & Engineering. 7:2388-2399 |
| ISSN: | 2168-0485 |
| Popis: | Microporous organic polymers (MOPs) encapsulated with palladium nanoparticles (NPs) and immobilized on magnetic Co/C nanobeads show excellent activity in hydrogenation reactions of alkenes, alkynes, and nitro arenes with turnover frequencies (TOFs) up to 3000 h–1. The magnetic core of the nanobeads ensures an easy and fast recyclability for at least six consecutive runs by applying an external magnet to recapture the catalyst. The catalytic system reported here uses cross-linked toluene as a polymer structure and is readily prepared via a cost-efficient and versatile synthesis based on commercially available starting materials. The novel catalysts combine the advantages of a heterogeneous magnetic support with MOPs that prevent NPs from agglomeration or deactivation. In addition, the advantages of palladium NPs as exceedingly active catalyst due to their high surface-area-to-volume ratio are exploited. Furthermore, the polymeric structure can easily be varied by the change of the aromatic monomer. Introdu... |
| Databáze: | OpenAIRE |
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