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Findings on Chalcogens Reported by Investigators at Paul Scherrer Institute (Structure of Platinum Catalysts under CO, Hydrogen, and Oxygen;...

August 5, 2014



Findings on Chalcogens Reported by Investigators at Paul Scherrer Institute (Structure of Platinum Catalysts under CO, Hydrogen, and Oxygen; Anomalous Behavior of Pt on Ceria after Cyanide Leaching)

By a News Reporter-Staff News Editor at Life Science Weekly -- New research on Chalcogens is the subject of a report. According to news reporting originating in Villigen, Switzerland, by NewsRx journalists, research stated, "By means of in situ time-resolved high-energy-resolution fluorescence X-ray spectroscopy and infrared spectroscopy, the structure of platinum on alumina and ceria catalysts in a reaction mixture of 75% H-2., 1% CO, and 1% O-2 in He was determined as a function of temperature. After reduction, all the observed platinum in Pt/Al2O3 and Pt/Ce(La)O-x was present as Pt(0) nanoparticles covered with CO."

The news reporters obtained a quote from the research from Paul Scherrer Institute, "The amount of CO depended on the temperature and CO concentration. Cyanide leaching of ceria-supported platinum catalyst yielded a high concentration of cationic platinum. Reduction occurred in the absence of oxygen; extremely small Pt clusters (

According to the news reporters, the research concluded: "Even without the knowledge of the exact structure of the platinum-oxygen species, this in situ study identifies the roles of reduced nanoparticles and cationic metal in generating activity and selectivity."

For more information on this research see: Structure of Platinum Catalysts under CO, Hydrogen, and Oxygen; Anomalous Behavior of Pt on Ceria after Cyanide Leaching. Journal of Physical Chemistry C, 2014;118(25):13432-13443. Journal of Physical Chemistry C can be contacted at: Amer Chemical Soc, 1155 16TH St, NW, Washington, DC 20036, USA. (American Chemical Society - www.acs.org; Journal of Physical Chemistry C - www.pubs.acs.org/journal/jpccck)

Our news correspondents report that additional information may be obtained by contacting J.A. van Bokhoven, Paul Scherrer Inst, Lab Catalysis & Sustainable Chem, CH-5232 Villigen, Aargau, Switzerland. Additional authors for this research include C. Paun and J. Singh (see also Chalcogens).

Keywords for this news article include: Europe, Villigen, Chalcogens, Switzerland, Nanoparticle, 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: Life Science Weekly


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