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      Electroless synthesis of 3nm wide alloy nanowires inside Tobacco mosaic virus

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      Author
      Balci, S.
      Hahn, K.
      Kopold P.
      Kadri, A.
      Wege, C.
      Kern, K.
      Bittner, A.M.
      Date
      2012
      Source Title
      Nanotechnology
      Print ISSN
      0957-4484
      Volume
      23
      Issue
      4
      Language
      English
      Type
      Article
      Item Usage Stats
      161
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      134
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      Abstract
      We show that 3nm wide cobaltiron alloy nanowires can be synthesized by simple wet chemical electroless deposition inside tubular Tobacco mosaic virus particles. The method is based on adsorption of Pd(II) ions, formation of a Pd catalyst, and autocatalytic deposition of the alloy from dissolved metal salts, reduced by a borane compound. Extensive energy-filtering TEM investigations at the nanoscale revealed that the synthesized wires are alloys of Co, Fe, and Ni. We confirmed by high-resolution TEM that our alloy nanowires are at least partially crystalline, which is compatible with typical Co-rich alloys. Ni traces bestow higher stability, presumably against corrosion, as also known from bulk CoFe. Alloy nanowires, as small as the ones presented here, might be used for a variety of applications including high density data storage, imaging, sensing, and even drug delivery. © 2012 IOP Publishing Ltd.
      Keywords
      Autocatalytic deposition
      Dissolved metals
      Electroless synthesis
      Energy filtering
      High density data storage
      High-resolution TEM
      Nano scale
      Partially crystalline
      Pd catalyst
      Tobacco mosaic virus
      Wet chemicals
      Adsorption
      Drug delivery
      Nanowires
      Palladium
      Palladium compounds
      Tobacco
      Viruses
      Alloys
      alloy
      nanowire
      article
      chemistry
      electrochemistry
      methodology
      particle size
      synthesis
      Tobacco mosaic virus
      ultrastructure
      virion
      Alloys
      Electrochemistry
      Nanowires
      Particle Size
      Tobacco Mosaic Virus
      Virion
      Permalink
      http://hdl.handle.net/11693/21593
      Published Version (Please cite this version)
      http://dx.doi.org/10.1088/0957-4484/23/4/045603
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      • Department of Physics 2299
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