By a News Reporter-Staff News Editor at Life Science Weekly -- New research on Chalcogens is the subject of a report. According to news reporting originating in Providence, Rhode Island, by NewsRx journalists, research stated, "We report a new seed-mediated growth of FePt over 2.5 nm wide FePtM (M=Pd, Au) nanowires (NWs) into core/shell FePtM/FePt NWs with controlled FePt shell thickness from 0.3 to 1.3 nm. These FePtM/FePt NWs show shell thickness and core composition-dependent electrocatalytic activity for oxygen reduction reaction (ORR) in 0.1 M HClO4."
The news reporters obtained a quote from the research from Brown University, "These core/shell FePtM/FePt NWs are generally more active and durable than the corresponding alloy NWs. Among FePtM/FePt NWs, FePt NWs, FePtPd NWs, and commercial Pt studied, the FePtPd/FePt NWs (0.8 nm shell) show the specific activity of 3.47 mA·cm(-2) and the mass activity of 1.68 A/mg Pt at 0.5 V (vs. Ag/AgCl), superior to all other NWs (less than 1.59 mA/cm(2) and 0.82 A/mg Pt for FePtAu/FePt and FePt) as well as the commercial Pt (0.24 mA/cm(2) and 0.141 A/mg Pt). The FePtM/FePt (0.8 nm shell) NWs are also stable in the ORR condition and show no activity decrease after 5000 potential sweeps between 0.4 and 0.8 V (vs Ag/AgCl)."
According to the news reporters, the research concluded: "They are the most efficient nanocatalyst ever reported for ORR."
For more information on this research see: Seed-mediated synthesis of core/shell FePtM/FePt (M = Pd, Au) nanowires and their electrocatalysis for oxygen reduction reaction. Journal of the American Chemical Society, 2013;135(37):13879-84. (American Chemical Society - www.acs.org; Journal of the American Chemical Society - www.pubs.acs.org/journal/jacsat)
Our news correspondents report that additional information may be obtained by contacting S. Guo, Dept. of Chemistry, Brown University , Providence, Rhode Island 02912, United States. Additional authors for this research include S. Zhang, D. Su and S. Sun (see also Chalcogens).
Keywords for this news article include: Nanowire, Providence, Chalcogens, Rhode Island, United States, Nanotechnology, Emerging Technologies, North and Central America.
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