Generation of Pd Model Catalyst Nanoparticles by Spark Discharge
| Autor: | Sara Blomberg, Edvin Lundgren, Rasmus Westerström, Jesper N Andersen, Knut Deppert, Hendrik Bluhm, Maria E. Messing, Richard van Rijn, Olivier Balmes, Johan Gustafson, Bengt Meuller |
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| Rok vydání: | 2010 |
| Předmět: |
Materials science
Scanning electron microscope Oxide Nanotechnology Surfaces Coatings and Films Electronic Optical and Magnetic Materials Amorphous solid chemistry.chemical_compound General Energy X-ray photoelectron spectroscopy chemistry Chemical engineering Transmission electron microscopy Particle Particle size Physical and Theoretical Chemistry Dispersion (chemistry) |
| Zdroj: | The Journal of Physical Chemistry C. 114:9257-9263 |
| ISSN: | 1932-7455 1932-7447 |
| Popis: | We present a method to deposit Pd nanoparticles with a very small size distribution by an aerosol process onto oxide substrates for the creation of model systems in catalytic research. The Pd nanoparticles are characterized by transmission electron microscopy, scanning electron microscopy, X-ray photoelectron spectroscopy, and X-ray diffraction. We confirm the small size dispersion from the desired particle size, and we show that the particle surface coverage can be highly controlled. Further, our measurements indicate that an amorphous shell surrounding a crystalline core of the Pd particles may form during the particle synthesis and that the shell contains carbon. |
| Databáze: | OpenAIRE |
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