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Ligand Capping of Colloidally Synthesized Nanoparticles—A Way to Tune Metal–Support Interactions in Heterogeneous Gas‐Phase Catalysis
Author(s) -
Sonström Patrick,
Arndt Darius,
Wang Xiaodong,
Zielasek Volkmar,
Bäumer Marcus
Publication year - 2011
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201004573
Subject(s) - ligand (biochemistry) , nanoparticle , oxide , metal , catalysis , materials science , phase (matter) , iron oxide , chemical engineering , inorganic chemistry , nanotechnology , chemistry , organic chemistry , metallurgy , receptor , biochemistry , engineering
Better be capped: Ligand‐capped, colloidally prepared Pt nanoparticles deposited on nanostructured iron oxide catalyze CO oxidation at unusually low temperatures when compared to the action of identical ligand‐free Pt nanoparticles. The ligands efficiently modify the interaction between the metal and the iron oxide support and cause a beneficial strong metal–support interaction. As a result, the limitations resulting from CO poisoning at low temperatures can be overcome.