Bueschelberger, Philipp and Reyes-Rodriguez, Efrain and Schoettle, Christian and Treptow, Jens and Feldmann, Claus and Jacobi von Wangelin, Axel and Wolf, Robert (2018) Recyclable cobalt(0) nanoparticle catalysts for hydrogenations. CATALYSIS SCIENCE & TECHNOLOGY, 8 (10). pp. 2648-2653. ISSN 2044-4753, 2044-4761
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The search for new hydrogenation catalysts that replace noble metals is largely driven by sustainability concerns and the distinct mechanistic features of 3d transition metals. Several combinations of cobalt precursors and specific ligands in the presence of reductants or under high-thermal conditions were reported to provide active hydrogenation catalysts. This study reports a new method of preparation of small, monodisperse Co(0) nanoparticles (3-4 nm) from the reduction of commercial CoCl2 in the absence of ligands or surfactants. High catalytic activity was observed in hydrogenations of alkenes, alkynes, imines, and heteroarenes (2-20 bar H-2). The magnetic properties enabled catalyst separation and multiple recyclings.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | METAL NANOPARTICLES; SELECTIVE HYDROGENATION; HETEROGENEOUS CATALYSIS; HOMOGENEOUS CATALYSIS; ALKENE HYDROGENATION; OLEFIN HYDROGENATION; OXIDE NANOPARTICLES; N-HETEROCYCLES; IONIC LIQUIDS; C=N BONDS; |
| Subjects: | 500 Science > 540 Chemistry & allied sciences |
| Divisions: | Chemistry and Pharmacy > Institut für Anorganische Chemie > Arbeitskreis Prof. Dr. Robert Wolf |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 23 Mar 2020 08:17 |
| Last Modified: | 06 Apr 2020 05:07 |
| URI: | https://pred.uni-regensburg.de/id/eprint/14566 |
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