Highly Efficient Transition Metal Nanoparticle Catalysts in Aqueous Solutions

A ligand design is proposed for transition metal nanoparticle (TMNP) catalysts in aqueous solution. Thus, a tris(triazolyl)‐polyethylene glycol (tris‐trz‐PEG) amphiphilic ligand, 2, is used for the synthesis of very small TMNPs with Fe, Co, Ni, Cu, Ru, Pd, Ag, Pt, and Au. These TMNP‐2 catalysts were...

Full description

Saved in:
Bibliographic Details
Published in:Angewandte Chemie 2016-02, Vol.128 (9), p.3143-3147
Main Authors: Wang, Changlong, Ciganda, Roberto, Salmon, Lionel, Gregurec, Danijela, Irigoyen, Joseba, Moya, Sergio, Ruiz, Jaime, Astruc, Didier
Format: Article
Language:English
Subjects:
Aqueous solutions
Catalysis
Catalysts
Chemical reactions
Chemistry
Cobalt
Copper
Design
Design analysis
Gold
Grüne Chemie
Heterogene Katalyse
Hydrogenation
Iron
Ligandenentwicklung
Ligands
Mathematical models
Metals
Nanoparticles
Nanostructure
Nickel
Nitrophenol
Palladium
Platinum
Polyethylene glycol
Polyethylenes
Reduction (metal working)
Reduktionen
Silver
Transition metals
Übergangsmetallnanopartikel
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:A ligand design is proposed for transition metal nanoparticle (TMNP) catalysts in aqueous solution. Thus, a tris(triazolyl)‐polyethylene glycol (tris‐trz‐PEG) amphiphilic ligand, 2, is used for the synthesis of very small TMNPs with Fe, Co, Ni, Cu, Ru, Pd, Ag, Pt, and Au. These TMNP‐2 catalysts were evaluated and compared for the model 4‐nitrophenol reduction, and proved to be extremely efficient. High catalytic efficiencies involving the use of only a few ppm metal of PdNPs, RuNPs, and CuNPs were also exemplified in Suzuki–Miyaura, transfer hydrogenation, and click reactions, respectively. In der Hülle liegt die Fülle: Ein wasserlöslicher amphiphiler Tris(triazolyl)‐Polyethylenglykol‐Ligand umhüllt Übergangsmetall‐Nanopartikelkatalysatoren und stabilisiert sie. Die Liganden ermöglichen hoch effiziente Nitroaren‐Reduktionen, Klick‐Reaktionen, Suzuki‐Miyaura‐Kupplungen und Transferhydrierungen.
ISSN:0044-8249
1521-3757
DOI:10.1002/ange.201511305