Tuneable Catalysis and the Particle Size Puzzle

27. October 2021

Tuneable Catalysis and the Particle Size Puzzle

Important step in heterogenous catalysis: Scientists at TU Wien (Vienna) succeed in linking microscopic and macroscopic approaches - and thus solve an old puzzle.

illustration of two particle clusters of different sizes on a surface

The selectivity of 1-butene hydrogenation/isomerization on Pd catalysts is known to be particle size dependent. It is shown that combining well-defined model catalysts, atmospheric pressure reaction kinetics, DFT calculations and microkinetic modeling enables to rationalize the nanoparticle size effect based on the abundance and the specific properties of the contributing surface facets.

Collage of the research team: Alexander Genest (TU Vienna), Joaquín Silvestre-Albero (Alicante), Wen-Qing Li (Singapur), Notker Rösch (Munich), Günther Rupprechter (TU Vienna) and a picture of the "workstation" — The international research team (top left to bottom right): Alexander Genest (Vienna), Joaquín Silvestre-Albero (Alicante), Wen-Qing Li (Singapore), Notker Rösch (Munich), Günther Rupprechter (Vienna), and „the workstation“.

TU Press Release: www.tuwien.at/tu-wien/aktuelles/news/news/steuerbare-katalyse-die-loesung-des-teilchengroessen-problems, opens an external URL in a new window

Original publication: A. Genest et al., The origin of the particle-size-dependent selectivity in 1-butene isomerization and hydrogenation on Pd/Al₂O₃ catalysts, Nature Communications volume 12, 6098 (2021).

https://doi.org/10.1038/s41467-021-26411-8, opens an external URL in a new window

This study was funded by FWF within the Project „Single Atom Catalysis“.

Contact information:
Prof. Günther Rupprechter
Institut für Materialchemie
Technische Universität Wien
T: +43-1-58801-165100
guenther.rupprechter@tuwien.ac.at

Dr. Alexander Genest
Institut für Materialchemie
Technische Universität Wien
T: +43-1-58801-165101
alexander.genest@tuwien.ac.at

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Tuneable Catalysis and the Particle Size Puzzle