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Investigators from Korea Institute of Energy Research Release New Data on Chalcogens

June 24, 2014

By a News Reporter-Staff News Editor at Life Science Weekly -- A new study on Chalcogens is now available. According to news originating from Taejon, South Korea, by NewsRx correspondents, research stated, "A facile, scalable route to new nanocomposites that are based on carbon nanotubes/heteroatom-doped carbon (CNT/HDC) core-sheath nanostructures is reported. These nanostructures were prepared by the adsorption of heteroatom-containing ionic liquids on the walls of CNTs, followed by carbonization."

Our news journalists obtained a quote from the research from the Korea Institute of Energy Research, "The design of the CNT/HDC composite allows for combining the electrical conductivity of the CNTs with the catalytic activity of the heteroatom-containing HDC sheath layers. The CNT/HDC nanostructures are highly active electrocatalysts for the oxygen reduction reaction and displayed one of the best performances among heteroatom-doped nanocarbon catalysts in terms of half-wave potential and kinetic current density. The four-electron selectivity and the exchange current density of the CNT/HDC nanostructures are comparable with those of a Pt/C catalyst, and the CNT/HDC composites were superior to Pt/C in terms of long-term durability and poison tolerance."

According to the news editors, the research concluded: "Furthermore, an alkaline fuel cell that employs a CNT/HDC nanostructure as the cathode catalyst shows very high current and power densities, which sheds light on the practical applicability of these new nanocomposites."

For more information on this research see: Carbon Nanotubes/Heteroatom-Doped Carbon Core-Sheath Nanostructures as Highly Active, Metal-Free Oxygen Reduction Electrocatalysts for Alkaline Fuel Cells. Angewandte Chemie-International Edition, 2014;53(16):4102-4106. Angewandte Chemie-International Edition can be contacted at: Wiley-V C H Verlag Gmbh, Boschstrasse 12, D-69469 Weinheim, Germany (see also Chalcogens).

The news correspondents report that additional information may be obtained from Y.J. Sa, Korea Inst Energy Res, Fuel Cell Res Center, Taejon 305343, South Korea. Additional authors for this research include C. Park, H.Y. Jeong, S.H. Park, Z. Lee, K.T. Kim, G.G. Park and S.H. Joo.

Keywords for this news article include: Asia, Taejon, Chalcogens, Fullerenes, South Korea, Nanocomposite, Nanostructural, Nanostructures, Nanotechnology, Carbon Nanotubes, 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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