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Study Findings from Pohang University of Science and Technology (POSTECH) Broaden Understanding of Nanoparticles (Synthesis of hierarchical linearly...

July 11, 2014



Study Findings from Pohang University of Science and Technology (POSTECH) Broaden Understanding of Nanoparticles (Synthesis of hierarchical linearly assembled graphitic carbon nanoparticles via catalytic graphitization in SBA-15)

By a News Reporter-Staff News Editor at Science Letter -- Investigators discuss new findings in Nanoparticles. According to news originating from Pohang, South Korea, by NewsRx correspondents, research stated, "Graphitic carbon nanoparticles have received a great deal of attention due to their high electrical conductivity and excellent thermal and chemical stability. Although various synthesis methods have been proposed for the preparation of graphitic carbon nanoparticles, their assembled synthesis has rarely been studied."

Our news journalists obtained a quote from the research from the Pohang University of Science and Technology (POSTECH), "Here, we report the synthesis of hierarchical, linearly assembled hollow graphitic nanoparticles via catalytic graphitization in SBA-15, hexagonally ordered mesoporous silica. Carbonization of phenol-formaldehyde resin in the presence of impregnated cobalt salts in SBA-15 followed by the removal of the silica template resulted in carbon composites consisting of CMK-3-type amorphous carbon and graphitic carbon nanoparticles. Subsequent chemical oxidation of the amorphous carbon resulted in a bundle of necklace-like carbon nanowires with a length of a few micrometers, where each nanowire consisted of individual similar to 50 nm sized hollow graphitic carbon nanoparticles. By contrast, a catalytic graphitization using MCF, mesocellular foam without mesoscopic pore ordering, resulted in randomly assembled graphitic carbon nanoparticles."

According to the news editors, the research concluded: "These findings demonstrate that SBA-15 acted as a macroscopic template for the linear assembly of graphitic carbon nanoparticles during graphitization."

For more information on this research see: Synthesis of hierarchical linearly assembled graphitic carbon nanoparticles via catalytic graphitization in SBA-15. Carbon, 2014;75():95-103. Carbon can be contacted at: Pergamon-Elsevier Science Ltd, The Boulevard, Langford Lane, Kidlington, Oxford OX5 1GB, England. (Elsevier - www.elsevier.com; Carbon - www.elsevier.com/wps/product/cws_home/258)

The news correspondents report that additional information may be obtained from J. Kim, Pohang Univ Sci & Technol POSTECH, Dept. of Chem Engn, Pohang 790784, South Korea. Additional authors for this research include J. Lee, Y. Choi and C. Jo (see also Nanoparticles).

Keywords for this news article include: Asia, Pohang, 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: Science Letter


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