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Gas-Phase Heterogeneous Catalysis on Metal Nanoparticles

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Presentation on theme: "Gas-Phase Heterogeneous Catalysis on Metal Nanoparticles"— Presentation transcript:

1 Gas-Phase Heterogeneous Catalysis on Metal Nanoparticles
Beatriz Roldán Cuenya, Department of Physics, University of Central Florida Pt/SiO2 Size-selected Pt nanocatalysts were synthesized by inverse micelle encapsulation (PSPVP). The size of the Pt nanoparticles (NPs) and their oxidation state is influenced by the choice of oxide support. Size, oxidation state and support affect the performance (activity and selectivity) of Pt NPs for methanol decomposition. XPS Active Pt catalysts not only Pt-metal, but also PtO and PtO2. - Highest MeOH conversion (CH3OH = CO + 2H2): Pt/ZrO2

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