N-Heterocyclic Carbene-Modified Au-Pd Alloy Nanoparticles and Their Application as Biomimetic and Heterogeneous Catalysts
| Autor: | Bart Jan Ravoo, Sebastian Lamping, Patricia Tegeder, Matthias Freitag, Mizuki Tada, Nadja Möller, Kathryn M. Chepiga, Frank Glorius, Satoshi Muratsugu |
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| Rok vydání: | 2018 |
| Předmět: |
Alloy
Nanoparticle engineering.material 010402 general chemistry Transfer hydrogenation 01 natural sciences Catalysis chemistry.chemical_compound Stilbenes Alloys Particle Size Titanium 010405 organic chemistry Chemistry Ligand Organic Chemistry Stereoisomerism General Chemistry 0104 chemical sciences Glucose Chemical engineering Pd nanoparticles engineering Nanoparticles Gold Hydrogenation Selectivity Carbene Methane Oxidation-Reduction Palladium |
| Zdroj: | Chemistry (Weinheim an der Bergstrasse, Germany). 24(70) |
| ISSN: | 1521-3765 |
| Popis: | The preparation of water-soluble, N-heterocyclic-carbene-stabilized Au-Pd alloy nanoparticles by a straightforward ligand exchange process is presented. Extensive analysis revealed excellent size retention and stability over years in water. The alloy nanoparticles were applied as biomimetic catalysts for aerobic oxidation of d-glucose, for which monometallic Au and Pd nanoparticles showed no or negligible activity. The alloy nanoparticles were further applied as titania-supported heterogeneous catalysts for the mild hydrogenation of nitroarenes and the semihydrogenation of 1,2-diphenylacetylene with a solvent-dependent selectivity switch between E- and Z-stilbene. |
| Databáze: | OpenAIRE |
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