Catalytic Oxidation of Carbon Monoxide on Monodispersed Platinum Clusters: Each Atom Counts
Year: 1999
Type: article
Abstract: Nanoclusters open fascinating opportunities for quantum engineering because quantum-size effects become dominant in determining catalytic, 1 - 3 optical, 4 electronic, 5 and magnetic 6 properties. We succeeded in the controlled production of low-energy and high-flux monodispersed cluster beams, which allow for a systematic study of their reactivity after deposition onto a chemically inert substrate. We investigated the catalytic reaction that is the oxidation of CO on platinum and observed a distinct atom by atom size dependency for monodispersed platinum clusters on thin MgO(100) films. These results clearly show that the efficiency of a heterogeneous catalytic reaction can be tuned by the judicious choice of particle size.
DOI: 10.1021/ja983616l
Authors: U. Heiz, A. Sanchez, S. Abbet, W.-D. Schneider
Institution: University of Lausanne
Language: English
Subfield: Materials Chemistry
Field: Materials Science
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W2044768445