Evidence for the Surface-Catalyzed Suzuki–Miyaura Reaction over Palladium Nanoparticles: An Operando XAS Study

Authors


  • 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.

Abstract

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No need to get away: X-ray absorption spectroscopy of catalytically active palladium nanoparticles during a Suzuki–Miyaura cross-coupling reaction revealed that the nanoparticles 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.

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