Reactivity and advanced electron microscopy of mass selected clusters deposited on oxide supports (A03)

• Subject Area: Solid State and Surface Chemistry, Material Synthesis ; Physical Chemistry of Solids and Surfaces, Material Characterisation
• Term: since 2021
• Project identifier: Deutsche Forschungsgemeinschaft (DFG) - Project number 426888090

Mass selected Pt, Pd and Pt-Pd clusters/particles with a narrow size distribution in the range of 50-2000 atoms are deposited on different well defined substrates using a soft landing approach as well defined model systems for catalysis and tested in a specially designed reaction chamber. The structure of selected systems is characterized by in situ electron microscopy in defined gas atmospheres. Size distribution, shape, morphology, composition, atomic structure and substrate interaction as well as their evolution are determined under selected conditions relevant for emission control in order to correlate structure and catalytic activity.

• DFG Programme: Collaborative Research Centres
• Subproject of: SFB 1441: Tracking the active site in heterogeneous catalysis for emission control (TrackAct)
• Major Instrumentation: Analytics for catalysis chamber
• Instrumentation Group: 1700 Massenspektrometer
• Applicant Institution: Karlsruher Institut für Technologie
• Project Heads: Professor Dr.-Ing. Horst Hahn; Professor Dr. Christian Kübel