By a News Reporter-Staff News Editor at Science Letter -- Research findings on Fullerenes are discussed in a new report. According to news reporting out of Monserrato, Italy, by NewsRx editors, research stated, "Structures comprising single-crystal, iron-carbon-based nanowires encapsulated by multiwall carbon nanotubes self-organize on inert substrates exposed to the products of ferrocene pyrolysis at high temperature. The most commonly observed encapsulated phases are Fe3C, alpha-Fe, and gamma-Fe."
Our news journalists obtained a quote from the research from the University of Cagliari, "The observation of anomalously long-period lattice spacings in these nanowires has caused confusion since reflections from lattice spacings of >= 0.4 nm are kinematically forbidden for Fe3C, most of the rarely observed, less stable carbides, alpha-Fe, and gamma-Fe. Through high-resolution electron microscopy, selective area electron diffraction, and electron energy loss spectroscopy we demonstrate that the observed long-period lattice spacings of 0.49, 0.66, and 0.44 nm correspond to reflections from the (100), (010), and (001) planes of orthorhombic Fe3C (space group Pnma). Observation of these forbidden reflections results from dynamic scattering of the incident beam as first observed in bulk Fe3C crystals."
According to the news editors, the research concluded: "With small amounts of beam tilt these reflections can have significant intensities for crystals containing glide planes such as Fe3C with space groups Pnma or Pbmn."
For more information on this research see: The Origin of Long-Period Lattice Spacings Observed in Iron-Carbide Nanowires Encapsulated by Multiwall Carbon Nanotubes. Microscopy and Microanalysis, 2013;19(5):1298-1302. Microscopy and Microanalysis can be contacted at: Cambridge Univ Press, 32 Avenue Of The Americas, New York, NY 10013-2473, USA. (Cambridge University Press - www.cambridge.org; Microscopy and Microanalysis - journals.cambridge.org/action/displayJournal?jid=MAM)
Our news journalists report that additional information may be obtained by contacting F.S. Boi, University of Cagliari, Dipartimento Sci Chim, I-09042 Monserrato, Italy. Additional authors for this research include G. Mountjoy, Z. Luklinska, L. Spillane, L.S. Karlsson, R.M. Wilson, A. Corrias and M. Baxendale (see also Fullerenes).
Keywords for this news article include: Italy, Europe, Nanowire, Monserrato, Fullerenes, Nanotechnology, Carbon Nanotubes, Emerging Technologies
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