| Autor: |
Dennis Woitassek, José G. Moya-Cancino, Yangyang Sun, Yefan Song, Dennis Woschko, Stefan Roitsch, Christoph Janiak |
| Jazyk: |
angličtina |
| Rok vydání: |
2022 |
| Předmět: |
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| Zdroj: |
Chemistry, Vol 4, Iss 4, Pp 1147-1160 (2022) |
| Druh dokumentu: |
article |
| ISSN: |
2624-8549 |
| DOI: |
10.3390/chemistry4040078 |
| Popis: |
Metal nanoparticles are increasingly gaining interest in the field of heterogeneous catalysis. Here, we present a novel strategy for synthesizing sugar-coated platinum nanostructures (SC-Pt-NS) from the carbohydrates sucrose and D(-)-fructose. In the synthesis from a mixture of H2PtCl6·6H2O, the carbohydrate in an ionic liquid (IL) yielded primary particles of a homogeneous average size of ~10 nm, which were aggregated to hierarchical Pt nanostructures of ~40–65 nm and surrounded or supported by the carbohydrate. These sugar-coated platinum nanostructures present a facile way to support and heterogenize nanoparticles, avoid leaching and enable easier separation and handling. The catalytic activity of the SC-Pt-NS was shown in the hydrosilylation test reaction of phenylacetylene with triethylsilane, where very high turnover frequency (TOF) values of up to 87,200 h−1 could be achieved, while the platinum metal leaching into the product was very low. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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