Electroless synthesis of 3nm wide alloy nanowires inside Tobacco mosaic virus
Author
Balci, S.
Hahn, K.
Kopold P.
Kadri, A.
Wege, C.
Kern, K.
Bittner, A.M.
Date
2012Source Title
Nanotechnology
Print ISSN
0957-4484
Volume
23
Issue
4
Language
English
Type
ArticleItem Usage Stats
161
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views
134
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downloads
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 depositionDissolved 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/11693/21593Published Version (Please cite this version)
http://dx.doi.org/10.1088/0957-4484/23/4/045603Collections
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