Seminar, Colloquia and Conference Contributions

2012



• Invited Talk: Catalytic Properties of Metal Nanoparticles: Size, Shape, Support and Oxidation State Effects, NSF-PIRE-ECCI Catalysis Summer School, 09/10-14/2012, Dalian, China.
  

• Invited Talk: Evolution of the Structure and Chemical State of Pd and Pt Nanoparticles during the in situ Catalytic Reduction and Oxidation of NO, 244th American Chemical Society National Meeting & Exibition, Division of Energy and Fuels, Spectroscopy and Microscopy in Catalysis: The In Situ Age , 08/19-24/2012, Philadelphia, PA, USA.

• Invited Talk: Structure, Chemical State, and Reactivity Investigations of Size- and Shape-Selected Nanocatalysts under Operando Conditions, 244th American Chemical Society National Meeting & Exibition, Special Symposium on Advanced Metal Nanostructures for Catalysis, 08/19-24/2012, Philadelphia, PA, USA.
  

• Invited Talk: Structure, Chemical State, and Reactivity Investigations of Size- and Shape-Selected Nanocatalysts under Operando Conditions, 2nd Catalysis Summer School on Reactivity of Nanoparticles for more efficient and Sustainable Energy Conversion, 08/05-10/2012, Kobaeck Strand, Denmark.
  

• Invited Talk: Structure, Chemical State, and Reactivity Investigations of Size- and Shape-Selected Nanocatalysts under Operando Conditions, ETEM Workshop on Heterogeneous Catalysis, Surface Science and Energy Research, 07/10-12/2012, Göttingen, Germany.
  

• Invited Colloquium: Physical and Chemical Aspects of Size-Selected Nanomaterials, Colloquium in the Department of Physics at the University of Bochum, 07/09/2012, Bochum, Germany.
  

• Invited Talk: Structure, Chemical State, and Reactivity Investigations of Size- and Shape-Selected Nanocatalysts under Operando Conditions, 16th International Conference on Thin Films and Surfaces, 07/01-06/2012, Genoa, Italy.
  

• Invited Talk: Structure, Chemical State, and Reactivity Investigations of Size- and Shape-Selected Nanocatalysts under Operando Conditions, Gordon Conference in Catalysis, 06/24-29/2012, New London, NH, USA.
  

• Invited Seminar: Structure, Chemical State, and Reactivity Investigations of Size- and Shape-Selected Nanocatalysts under Operando Conditions, Seminar at the Division of Chemistry and Chemical Engineering at the Argonne National Laboratory, 05/29/2012, Chicago, IL, USA.
  

• Invited Colloquium: Size- and Shape-Selected Nanocatalysts under Operando Conditions, Colloquium at the University of Notre Dame, 04/16-18/2012, Notre Dame, In, USA.
  

• Invited talk: Thermodynamic Properties and Atomic Vibrational Dynamics of 57Fe Nanoclusters: Size-effects, 498th Wilhelm and Else Heraeus Seminar: Progress in Nuclear Resonant Scattering: from Methods to Materials, 02/26-29/2012, Bad Honnef, Germany.
  

• Invited talk: Structure, Chemical State, and Reactivity Investigations of Size- and Shape-Selected Nanocatalysts under Operando Conditions, Chemistry at Interfaces Workshop, 01/26-27/2012, Laguna Beach, CA.




2011



• Invited colloquium: Structure, Chemical State and Reactivity Investigations of Size- and Shape-Selected Nanocatalysts under Operando Conditions, Department of Chemical Engineering, University of South Florida, 11/18/2011, Tampa, FL.





• Invited talk: Influence of the oxidation state of supported size-selected Pt nanoparticles on catalytic decomposition and oxidation of high order alcohols: activity, selectivity and lifetime, Contractors Meeting of the U.S. Department of Energy, 10/02-05/2011, Annapolis, Maryland.





• Invited colloquium: Structure, Chemical State and Reactivity Investigations of Size- and Shape-Selected Nanocatalysts under Operando Conditions, Department of Chemical Engineering, Pittsburgh University, 09/16/2011, Pittsburgh.





• Invited seminar: Structure, Chemical State and Reactivity Investigations of Size- and Shape-Selected Nanocatalysts under Operando Conditions, Department of Chemical Physics, Fritz Haber Institute of the Max Planck Society, 05/27/2011, Berlin, Germany.





• Invited colloquium: Nanocatalysis, Institute for Surface Chemistry and Catalysis, University of Ulm, 05/17/2011, Ulm, Germany.





• Invited colloquium: Nanocatalysis, Department of Physics, Technical University of Denmark, 05/05/2011, Copenhagen, Denmark.





• Invited talk: Nanocatalysis: New Developments in Catalytic Performance of Size- and Shape-controlled Metal Nanoparticles, 7th Brazilian/German Workshop on Applied Surface Science, 04/03-08/2011, Buzios, Brazil.





• Invited colloquium: Nanocatalysis: New Developments in Catalytic Performance of Size- and Shape-controlled Metal Nanoparticles, Department of Chemical Engineering, Patras University, 03/11/2011, Patras, Greece.





• Invited colloquium: Towards the Understanding of Catalytic Properties of Metal Nanoparticles: Size, Support, and Shape effects, Department of Materials Science and Engineering, University of Washington at Seattle, 02/14/2011, Seattle, WA.




2010



• Invited colloquium: Towards the Understanding of Catalytic Properties of Metal Nanoparticles: Size, Support, and Shape effects Department of Chemistry, Ecole Polytechnique Federale de Lausanne, 11/24/2010, Lausanne, Switzerland.





• Invited talk: New Insights into Nanoparticle-Support Interactions and Shape-Dependent Nanocatalysis, Department of Physics, Aarhus University, 10/05/2010, Aarhus, Denmark.





• Invited talk: Structural, Electronic and Catalytic Properties of Micellar Metal Nanoparticles: Size, Shape, Support, and Oxidation State Effects, Fritz Haber Institute, Chemical Physics Department, 09/07/2010, Ringberg Castle, Germany.





• Invited talk: Atomic Vibrations in Metal Nanostructures, 37th International Conference on Vacuum Ultraviolet and X-ray Physics, 07/16/2010, Vancouver, Canada.





• Invited colloquium: Structural, Electronic and Catalytic Properties of Micellar Metal Nanoparticles: Size, Shape, Support, and Oxidation State Effects, Catalysis Research Center, Hokkaido University, 07/09/2010, Sapporo, Japan.





• Invited colloquium: Structural, Electronic and Catalytic Properties of Micellar Nanoparticles: Size, Shape, Support, and Oxidation State Effects, Department of Chemistry, University of California Irvine, 04/27/2010, Irvine, CA.





• Invited seminar: Structural, Electronic and Vibrational Properties of Micellar Nanoparticles: Size, Shape, Support, and Oxidation State Effects, Department of Chemical Engineering, Delaware University, 03/19/2010, Delaware, DE.





• Invited talk: Towards the Understanding of Catalytic Properties of Metal Nanostructures, Philadelphia Catalysis Club, 03/18/2010, Delaware, DE.





• Contributed talk: Atomic Vibrations in Metal Nanostructures, 13th International Conference on Vibrations at Surfaces, 03/13/2010, Orlando, FL.




2009



• Invited talk: Atomic Vibrations in Metal Nanostructures, Department of Physics, Yeshiva University, 12/15/2009, New York, NY.





• Invited talk - Peter Mark Memorial Award: Towards the Understanding of Catalytic and Vibrational Properties of Metal Nanostructures, 56th International Symposium of the American Vacuum Society, 11/08-13/2009, San Jose, CA.





• Invited talk: Synthesis, Stability, Electronic and Catalytic Properties of Micellar Metal Nanoparticles: Size, Support, and Oxidation State Effects, Department of Chemical Engineering, University of Washington at Seattle, 10/19/2009, Seattle, WA.





• Invited talk: Synthesis, Stability, Electronic and Catalytic Properties of Micellar Metal Nanoparticles: Size, Support, and Oxidation State Effects, Catalysis Summer School, 08/22-27/2009, Sandbjerg Gods, Denmark.





• Invited seminar: Structural, Electronic, Catalytic and Vibrational Properties of Metal Nanoparticles, Aarhus University, 08/21/2009, Aarhus, Denmark.





• Invited talk: Catalytic Decomposition and Oxidation of Alcohols over Pt and Pt-M Nanoparticles: Oxidation State Effects Meeting of the Catalysis Science Program, Office of Basic Energy Science, U.S. Department of Energy, 05/31/2009-06/03/2009, Annapolis, MD.





• Invited talk: Atomic Vibrations in Metal Nanostructures, Department of Physics, University of Nebraska-Lincoln, 04/03/2009, Lincoln, NE.





• Poster: Formation, Thermal Stability and Reactivity of Gold Oxide and Platinum Oxide Shells on Nanoparticles: Size, Composition, and Support Effects, Gordon Conference: Chemical Reactions at Surfaces, 02/08-13/2009, Ventura, CA.





• Invited seminar: Stability, Electronic and Catalytic Properties of Size-Selected Metal Nanoparticles, Department of Chemistry, University of California Santa Barbara, 01/16/2009, Santa Barbara, CA.





• Invited seminar: Atomic Vibrations in Metal Nanostructures, Department of Materials Science, California Institute of Technology, 01/14/2009, Pasadena, CA.




2008



• Invited talk: Vibrational and Magnetic Properties of Metal Nanostructures, Latin American Conference on the Applications of the Mossbauer Effect - LACAME, 11/09-13/2008, La Plata, Argentina.





• Talk: Stability, Electronic and Catalytic Properties of Supported Metal Nanoparticles, American Vacuum Society Meeting, 10/21/2008, Boston, MA.





• Invited colloquium: Stability, Electronic and Catalytic Properties of Supported Metal Nanoparticles, Department of Chemical Engineering, University of Florida, 09/29/2008, Gainesville, FL.





• Invited colloquium: Atomic Vibrations in Metal Nanostructures, Department of Physics, University of South Florida, 09/05/2008, Tampa, FL.





• Invited seminar: Stability, Electronic, Catalytic, and Vibrational Properties of Supported Metal Nanoparticles, Department of Physics, University of Duisburg-Essen, 08/14/2008, Duisburg, Germany.





• Invited seminar: Stability, Electronic and Catalytic Properties of Supported Metal Clusters, Department of Chemistry, University of Washington at Seattle, 06/04/2008, Seattle.





• Invited talk: Atomic Vibrations in Metal Nanostructures, Nuclear Resonance Workshop, 2008 Users Meeting of the Advanced Photon Source, 05/08/2008, Chicago, IL.





• Invited colloquium: Stability, Electronic and Catalytic Properties of Supported Metal Clusters, Texas A&M, 04/18/2008, College Station, Texas.





• Invited talk: Stability, Electronic and Catalytic Properties of Supported Metal Clusters, Florida chapter of the American Vacuum Society, 03/10-11/2008, Orlando, FL.





• Invited talk: Stability, Electronic and Catalytic Properties of Supported Metal Clusters, 2008 Mesilla Chemistry Workshop: New Frontiers of Electro-catalysis, 02/9-13/2008, Mesilla, NM.





• Invited seminar: Thermal stability, Electronic and Catalytic Properties of Supported Metal Clusters, Department of Chemistry, Brookhaven National Laboratory, 01/31/2008, Upton, NY.




2007



• Invited colloquium: Atomic Vibrations in Metal Nanoclusters, Advanced Photon Source, Argonne National Laboratory, 11/07/2007, Chicago, IL.





• Invited talk: Size, Oxidation and Substrate Effects on the Decomposition of Methanol for H2 Production via Size-Selected Pt Nanoparticles, Siemens Power Generation, 10/10/2007, Orlando, FL.





• Invited colloquium: Thermal stability, Electronic, Vibrational and Catalytic Properties of Supported Metal Clusters: Size, Interparticle Interactions and Support Effects, University of Illinois at Urbana Champaign, Material Science Department, 09/10/2007, Urbana, IL.





• Invited talk: Electronic and catalytic properties of supported metal nanoparticles: Size, Interparticle Interactions, and Support Effects, NSF Inorganic Chemistry Workshop, 06/04-07/2007, Jackson Hole, WY.





• Invited poster: In-situ electronic and catalytic properties of supported size-selected gold nanoparticles synthesized by diblock copolymer encapsulation and Size, oxidation and substrate effects on the decomposition of methanol for H2 production via size-selected Pt nanoparticles, DOE-Catalysis meeting, 05/23-26/2007, Charlottesville, VA.





• Invited talk: Size-dependent study of methanol decomposition over size-selected Pt nanoparticles synthesized by micelle encapsulation, 136th meeting of The Minerals, Metals and Materials Society -TMS, 02/28/2007, Orlando, FL.





• Invited poster: In-situ electronic and catalytic properties of supported size-selected gold nanoparticles synthesized by inverse micelle encapsulation, Gordon Research Conference on Chemical Reactions at Surfaces, 02/11-16/2007, Ventura, CA.





• Invited talk: Atomic Vibrations in Iron Nanoclusters, 16th Users Meeting of the European Synchrotron Radiation Facility: Workshop on Nanoscale Structure, Vibrational Dynamics and Magnetism, 02/5-8/2007, Grenoble, France.




2006



• Invited talk and short course: Catalytic properties of size-selected gold nanoparticles synthesized by inverse micelle encapsulation and Nanoscale Surface Physics, Mexican Society of Science and Technology of Surfaces and Materials, 09/25-28/2006, Puebla, Mexico.





• Invited talk: Atomic vibrational dynamics of size-selected isolated nanoclusters, 6th Seeheim Workshop on Mössbauer Spectroscopy, 06/07-11/2006, Seeheim, Germany.





• Invited talk: Vibrational dynamics of size-selected Fe nanoclusters, 2006 Users Meeting of the Advanced Photon Source at the Argonne National Laboratory, 05/01-05/2006, Chicago, USA.





• Invited talk: Vibrational dynamics of low dimensional systems, 4th Nassau Mössbauer Symposium, 01/14/2006, Garden City, New York, USA.




2005



• Invited seminar: Elektronische, magnetische, chemische und Schwingungs-Eigenschaften metallischer Nanostrukturen, Department of Physics, University of Duisburg-Essen, 12/19/2005, Duisburg, Germany..





• Poster: Gas phase catalytic processes on metal-oxide supported gold nanoclusters, 52nd International Symposium of the American Vacuum Society, 10/30/2005-11/04/2005, Boston, MA, USA.





• Invited attendee: NSF-Materials World Network, XIV International Materials Research Congress, 08/21-25/2005, Cancun, Mexico





• Invited seminar: Gas-phase nanoparticle catalysis,  04/28/2005, Florida Institute of Technology, Melbourne, FL, USA





• Contributed talk: Enhanced hyperfine magnetic fields for face-tetragonal Fe(110) ultrathin films on vicinal Pd(110), 03/24/2005, March meeting of the American Physical Society, Los Angeles, CA, USA.





• Invited seminar: Size and support dependent electronic and catalytic properties of Au⁰/Au³⁺ nanoparticles synthesized from block-co-polymer micelles, 03/17/2005, Department of Chemistry, University of California at Berkeley, CA, USA.





• Contributed talk: Growth and magnetic properties of low dimensional systems, 03/15/2005, Florida chapter of the American Vacuum Society annual meeting, Orlando, FL, USA.




1999-2004



• 51^st Meeting of the American Vacuum Society, 11/14-19/2004, Anaheim, CA, USA.





• Microscopy and Microanalysis, 8/1-5/2004, Savannah, GA, USA





• Invited talk: Large Effects from Small Surfaces?, 03/2003, Physics department, University of Duisburg-Essen, Essen, Germany.





• Invited talk: Experimental studies of chemically activated electronic phenomena at surfaces, 03/2003, Physics department, University of Central Florida, Orlando, FL, USA.





• Invited talk: Workshop on Nanocluster catalysis, Synthesis and characterization of oxide supported Au nanoclusters, 03/2003, Santa Barbara, CA, USA.





• Gordon conference: (poster) Chemical reactions at surfaces, Observations and explanations of electronic excitations from hydrocarbon reactions on transition metals, 02/2003, Ventura, CA, USA.





• Gordon conference: (poster) Chemical reactions at surfaces, Large effects from small surfaces?, 02/2003, Ventura, CA, USA.





• Seminar talk: Magnetism of step-decorated Fe/Pd(110), 08/30/2001, University of California at Santa Barbara, Santa Barbara, USA.





• Seminar talk: Growth and magnetic properties of ultrathin Fe on Pd(110), 08/28/2001, University of Illinois at Chicago, Chicago, USA.





• Joint Summer Workshop on Mesomagnetism, Spin Dynamics and Spin Electronics, 06/30-07/5/2001, Santorini, Greece.





• 4th International Conference on Metallic Multilayers 2001, 06/24-29/2001, Aachen, Germany.





• Seminar talk: Vibrational dynamics of interfacial alpha-Sn in Sn/Si multilayers, 06/22/2001, Harvard University, Boston, USA.





• Spring conference of the DPG (Deutsche Physikalische Gesellshaft), 03/25-28/2001, Hamburg, Germany.





• Workshop: Correlation of Structure and Magnetism in Novel Nanoscale Magnetic Particles, 10/29-30/2000, Slomenice Castle, Slovakia.





• 57th International Symposium of the American Vacuum Society, 10/02-06/2000, Boston, MA, USA.





• Seminar talk: Observation of the fcc-to-bcc Bain transformation in epitaxial Fe ultrathin films on Cu₃Au(001), 06/15/2000, Materials Science Division, Argonne National Laboratory, Chicago, USA.





• International Conference of Applications of the Mössbauer Effect (ICAME), 08/29/1999-09/03/1999, Garmisch-Partenkirchen, Germany.





• Spring conference of the DPG (Deutsche Physikalische Gesellshaft), 03/22-26/1999, Münster, Germany.





• International Symposium on Structure and Dynamics of Heterogeneous Systems (SDHS 99), 02/24-26/1999, Duisburg, Germany.