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Reports from Jiangsu University Add New Data to Findings in Nanoparticles (Controlling Allotropism in Ruthenium Nanoparticles: A Pulsed-Flow...

July 1, 2014



Reports from Jiangsu University Add New Data to Findings in Nanoparticles (Controlling Allotropism in Ruthenium Nanoparticles: A Pulsed-Flow Supercritical Synthesis and in Situ Synchrotron X-ray Diffraction Study)

By a News Reporter-Staff News Editor at Physics Week -- Investigators publish new report on Nanoparticles. According to news reporting originating from Zhenjiang, People's Republic of China, by VerticalNews correspondents, research stated, "Ruthenium nanoparticles have been synthesized by a novel pulsed-flow supercritical method using ethanol both as solvent and reducing agent. To improve the understanding of the formation and growth of Ru nanoparticles, the synthesis processes were also studied by in situ synchrotron radiation powder X-ray diffraction (SR-PXRD)."

Our news editors obtained a quote from the research from Jiangsu University, "Both the face-centered cubic (fcc) structure and the hexagonal close packed (hcp) structure of Ru can be synthesized in phase pure form by controlling the reaction conditions. When Ru(acac)(3) is used as the precursor, fcc Ru is formed at a reaction temperature of 200 degrees C, while the hcp structure appears at higher temperatures. For syntheses with RuCl3 as the precursor, pure hcp Ru forms at all temperatures investigated, but an intermediate, yet unidentified, compound is detected in the reaction process at 200 degrees C. Both the pulsed-flow experiments and the in situ SR-PXRD experiments show that the reduction of the RuCl3 precursor proceeds faster than the reduction of the Ru(acac)(3) precursor."

According to the news editors, the research concluded: "Overall, the pulsed-flow supercritical approach provides a facile, green, and rapid synthesis of Ru nanoparticles with complete control of the allotropy."

For more information on this research see: Controlling Allotropism in Ruthenium Nanoparticles: A Pulsed-Flow Supercritical Synthesis and in Situ Synchrotron X-ray Diffraction Study. Journal of Physical Chemistry C, 2014;118(20):11104-11110. 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)

The news editors report that additional information may be obtained by contacting J.L. Mi, Jiangsu Univ, Inst Adv Mat, Zhenjiang 212013, People's Republic of China. Additional authors for this research include Y.B. Shen, J. Becker, M. Bremholm and B.B. Iversen.

Keywords for this news article include: Asia, Physics, Zhenjiang, Synchrotrons, Nanotechnology, Emerging Technologies, People's Republic of China

Our reports deliver fact-based news of research and discoveries from around the world. Copyright 2014, NewsRx LLC


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Source: Physics Week


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