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Research Conducted at Graduate School of EEWS Has Updated Our Knowledge about Chalcogens (Intrinsic Relationship between Enhanced Oxygen Reduction...

August 5, 2014



Research Conducted at Graduate School of EEWS Has Updated Our Knowledge about Chalcogens (Intrinsic Relationship between Enhanced Oxygen Reduction Reaction Activity and Nanoscale Work Function of Doped Carbons)

By a News Reporter-Staff News Editor at Life Science Weekly -- Data detailed on Chalcogens have been presented. According to news reporting from Taejon, South Korea, by NewsRx journalists, research stated, "Nanostructured carbon materials doped with a variety of heteroatoms have shown promising electrocatalytic activity in the oxygen reduction reaction (ORR). However, understanding of the working principles that underpin the superior ORR activity observed with doped nanocarbons is still limited to predictions based on theoretical calculations."

The news correspondents obtained a quote from the research from the Graduate School of EEWS, "Herein, we demonstrate, for the first time, that the enhanced ORR activity in doped nanocarbons can be correlated with the variation in their nanoscale work function. A series of doped ordered mesoporous carbons (OMCs) were prepared using N, S, and O as dopants; the triple-doped, N,S,O-OMC displayed superior ORR activity and four-electron selectivity compared to the dual-doped (N,O-OMC and S,O-OMC) and the monodoped (O-OMC) OMCs."

According to the news reporters, the research concluded: "Significantly, the work functions of these heteroatom-doped OMCs, measured by Kelvin probe force microscopy, display a strong correlation with the activity and reaction kinetics for the ORR This unprecedented experimental insight can be used to provide an explanation for the enhanced ORR activity of heteroatom-doped carbon materials."

For more information on this research see: Intrinsic Relationship between Enhanced Oxygen Reduction Reaction Activity and Nanoscale Work Function of Doped Carbons. Journal of the American Chemical Society, 2014;136(25):8875-8878. Journal of the American Chemical Society can be contacted at: Amer Chemical Soc, 1155 16TH St, NW, Washington, DC 20036, USA. (American Chemical Society - www.acs.org; Journal of the American Chemical Society - www.pubs.acs.org/journal/jacsat)

Our news journalists report that additional information may be obtained by contacting J.Y. Cheon, Korea Adv Inst Sci & Technol, Grad Sch EEWS, Taejon 305701, South Korea. Additional authors for this research include J.H. Kim, J.H. Kim, K.C. Goddeti, J.Y. Park and S.H. Joo (see also Chalcogens).

Keywords for this news article include: Asia, Taejon, Nanoscale, Chalcogens, South Korea, 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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