News Column

Data on Chalcogens Detailed by Researchers at University of Tartu

June 24, 2014

By a News Reporter-Staff News Editor at Life Science Weekly -- Current study results on Chalcogens have been published. According to news originating from Tartu, Estonia, by NewsRx correspondents, research stated, "Micro- and mesoporous carbide-derived carbons synthesized from molybdenum and tungsten carbides were used as porous supports for a platinum catalyst. Synthesized materials were compared with commercial Vulcan XC72R conducting furnace black."

Our news journalists obtained a quote from the research from the University of Tartu, "The scanning electron microscopy, X-ray diffraction, Raman spectroscopy, high-resolution transmission electron microscopy, and low-temperature N-2 adsorption methods were applied to characterize the structure of catalysts prepared. The kinetics of oxygen electroreduction in 0.5 M H2SO4 solution was studied using cyclic voltammetry and rotating disk electrode methods. The synthesized carbide-derived carbons exhibited high specific surface area and narrow pore size distribution. The platinum catalyst was deposited onto the surface of a carbon support in the form of nanoparticles or agglomerates of nanoparticles. Comparison of carbide-derived carbons and Vulcan XC72R as a support showed that the catalysts prepared using carbide-derived carbons are more active towards oxygen electroreduction."

According to the news editors, the research concluded: "It was shown that the structure of the carbon support has a great influence on the activity of the catalyst towards oxygen electroreduction."

For more information on this research see: Impact of the Pt catalyst on the oxygen electroreduction reaction kinetics on various carbon supports. Journal of Solid State Electrochemistry, 2014;18(5):1223-1229. Journal of Solid State Electrochemistry can be contacted at: Springer, 233 Spring St, New York, NY 10013, USA. (Springer -; Journal of Solid State Electrochemistry -

The news correspondents report that additional information may be obtained from S. Sepp, University of Tartu, Inst Chem, EE-50411 Tartu, Estonia. Additional authors for this research include E. Hark, P. Valk, K. Vaarmets, J. Nerut, R. Jager and E. Lust (see also Chalcogens).

Keywords for this news article include: Tartu, Europe, Estonia, Chalcogens, Nanoparticle, Nanotechnology, Emerging Technologies

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Source: Life Science Weekly

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