Center for Functional Nanomaterials Seminar
"Catalytic Reactivity & In-situ Dynamics of Model Nanoparticle Catalysts"
Presented by Selim Alayoglu
Thursday, March 14, 2013, 10 am
CFN, Building 735, Conf. Rm. A
Hosted by: Peter Sutter
Center for Functional Nanomaterials Seminar Catalytic Reactivity & In-situ Dynamics of Model Nanoparticle Catalysts Selim Alayoglu Department of Chemistry, University of California Berkeley and Chemical Sciences Division, Lawrence Berkeley National Laboratory Thursday, March 14, 2013 10:00 a.m. Bldg. 735 â€" Conf. Rm. A Simultaneous selectivity and activity is the primary challenges of industrial catalysis in the 21st century. Hydrocarbon transformations, such as liquid fuel production, H2 production and purification processing, reforming, and isomerization reactions. These reactions are key catalytic processes for generation of sustainable energy carriers, and are highlighted in the agenda of the US Department of Energy (DOE). Structure-sensitive reactivity in heterogeneous catalysis, which often manifests itself as particle size and shape dependence of catalytic activity and selectivity, plays an essential role in our energy-driven industrial society. Colloidal chemistry offers a unique way of understanding molecular factors that control structure sensitive reactivity by tailoring materials properties such as: size; morphology; crystal shape; composition and architecture, thus providing a novel route to prepare well-defined model catalysts. In relation to the current challenges of catalysis, the use of so-called model nanoparticle catalysts for various heterogeneous hydrocarbon transformations will be discussed in the first part of my talk. In this respect, size- and shape-controlled Pt monometallic nanoparticles for the reforming of methylcyclopentane, and composition- and architecture-controlled Pt-based bimetallic nanoparticles for the hydrogenation of CO2 (i.e. CO2/H2 Fischer-Tropsch synthesis) and preferential oxidation of CO in H2 (i.e. PROX) will be presented. In the second part of my talk, in-situ probe