Metal vapor synthesis of ultrasmall Pd nanoparticles functionalized with N-heterocyclic carbenes

The synthesis of N-heterocyclic carbene (NHC)-stabilized palladium nanoparticles (PdNPs) by an entirely new strategy comprising the NHC functionalization of ligand-free PdNPs obtained by metal vapor synthesis is described. Detailed characterization confirms the formation of very small monodisperse P...

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Bibliographic Details
Published in:Dalton transactions : an international journal of inorganic chemistry 2018-09, Vol.47 (36), p.12647-12651
Main Authors: Tegeder, Patricia, Marelli, Marcello, Freitag, Matthias, Polito, Laura, Lamping, Sebastian, Psaro, Rinaldo, Glorius, Frank, Ravoo, Bart Jan, Evangelisti, Claudio
Format: Article
Language:English
Subjects:
Carbenes
Carbon
Ligands
Metal vapors
Nanoparticles
Palladium
Regioselectivity
Synthesis
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Summary:The synthesis of N-heterocyclic carbene (NHC)-stabilized palladium nanoparticles (PdNPs) by an entirely new strategy comprising the NHC functionalization of ligand-free PdNPs obtained by metal vapor synthesis is described. Detailed characterization confirms the formation of very small monodisperse PdNPs (2.3 nm) and the presence of the NHC ligand on the Pd surface. The stable NHC-functionalized PdNPs dispersed onto a carbon support showed high activity in the hydrogenation of limonene with enhanced regioselectivity in comparison to bare PdNPs on carbon. The synthesis of N-heterocyclic carbene (NHC)-stabilized palladium nanoparticles (PdNPs) by an entirely new strategy comprising the NHC functionalization of ligand-free PdNPs obtained by metal vapor synthesis is described.
ISSN:1477-9226
1477-9234
DOI:10.1039/c8dt02535e