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Reports Outline Nanoparticles Findings from Technical University of Denmark (Tomographic Heating Holder for In Situ TEM: Study of Pt/C and PtPd/Al2O3...

August 22, 2014



Reports Outline Nanoparticles Findings from Technical University of Denmark (Tomographic Heating Holder for In Situ TEM: Study of Pt/C and PtPd/Al2O3 Catalysts as a Function of Temperature)

By a News Reporter-Staff News Editor at Science Letter -- Current study results on Nanoparticles have been published. According to news reporting from Lyngby, Denmark, by NewsRx journalists, research stated, "A tomographic heating holder for transmission electron microscopy that can be used to study supported catalysts at temperatures of up to similar to 1,500 degrees C is described. The specimen is placed in direct thermal contact with a tungsten filament that is oriented perpendicular to the axis of the holder without using a support film, allowing tomographic image acquisition at high specimen tilt angles with minimum optical shadowing."

The news correspondents obtained a quote from the research from the Technical University of Denmark, "We use the holder to illustrate the evolution of the active phases of Pt nanoparticles on carbon black and PtPd nanoparticles on gamma-alumina with temperature. Particle size distributions and changes in active surface area are quantified from tilt series of images acquired after subjecting the specimens to increasing temperatures."

According to the news reporters, the research concluded: "The porosity of the alumina support and the sintering mechanisms of the catalysts are shown to depend on distance from the heating filament."

For more information on this research see: Tomographic Heating Holder for In Situ TEM: Study of Pt/C and PtPd/Al2O3 Catalysts as a Function of Temperature. Microscopy and Microanalysis, 2014;20(3):982-990. Microscopy and Microanalysis can be contacted at: Cambridge Univ Press, 32 Avenue Of The Americas, New York, NY 10013-2473, USA. (Cambridge University Press - www.cambridge.org; Microscopy and Microanalysis - journals.cambridge.org/action/displayJournal?jid=MAM)

Our news journalists report that additional information may be obtained by contacting L.C. Gontard, Technical University of Denmark, Center Electron Nanoscopy, DK-2800 Lyngby, Denmark. Additional authors for this research include R.E. Dunin-Borkowski, A. Fernandez, D. Ozkaya and T. Kasama (see also Nanoparticles).

Keywords for this news article include: Lyngby, Europe, Denmark, Nanotechnology, Emerging Technologies

Our reports deliver fact-based news of research and discoveries from around the world. Copyright 2014, NewsRx LLC


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Source: Science Letter


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