Supported, size-selected Platinum clusters (8–68 atoms), as sophisticated heterogeneous model catalyst system, were investigated with respect to different aspects of their catalytic properties as a function of size.
Under ultra high vacuum conditions the electronic structure, adsorption properties and reactivity of two olefins on surfaces and Pt clusters were probed in the submonolayer range. With adsorbed trichloroethene a possible cluster-adsorbate induced change in the electronic structure and for ethene a low temperature, size dependent self-/hydrogenation was observed.
In a collaborative approach, the Pt clusters were investigated under ambient pressure conditions. The clusters were characterized on local and integral level and tested towards temperature stability. Experiments in gas phase micro-reactors and in liquid, as part of a hybrid photo catalytic system, revealed size dependent reactivity.
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Supported, size-selected Platinum clusters (8–68 atoms), as sophisticated heterogeneous model catalyst system, were investigated with respect to different aspects of their catalytic properties as a function of size.
Under ultra high vacuum conditions the electronic structure, adsorption properties and reactivity of two olefins on surfaces and Pt clusters were probed in the submonolayer range. With adsorbed trichloroethene a possible cluster-adsorbate induced change in the electronic structure a...
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