Abstract
No need to get away: X-ray absorption spectroscopy of catalytically active palladium nanopartlcles during a SuzukiMlyaura cross-coupling reaction revealed that the nanopartlcles were stable under the reaction conditions, and that cross-coupling Involved the direct participation of surface palladium defect sites In the catalytic cycle (see picture). Selective chemical and structural poisons provided further evidence for a heterogeneous active site.
Original language | English |
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Pages (from-to) | 1820-1824 |
Number of pages | 5 |
Journal | Angewandte Chemie |
Volume | 49 |
Issue number | 10 |
Early online date | 2 Feb 2010 |
DOIs | |
Publication status | Published - 1 Mar 2010 |
Bibliographical note
We thank the EPSRC (EP/E046754/1, EP/G007594/1), the ESRF (award CH2432), AstraZeneca, and the Royal Society for supporting this research, and Dr. S. Nikitenko for assistance on beamline BM26. XAS=X-ray absorption spectroscopy.Keywords
- C-C coupling
- EXAFS spectroscopy
- heterogeneous catalysis
- palladium
- surface analysis