Seedless, Surfactantless Wet Chemical Synthesis of Silver Nanowires

We report a method to make crystalline silver nanowires in water, in the absence of a surfactant or polymer to direct nanoparticle growth, and without externally added seed crystallites. The reaction is one in which silver salt is reduced to silver metal, at 100 °C, by sodium citrate, in the presenc...

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Bibliographic Details
Published in:Nano letters 2003-05, Vol.3 (5), p.667-669
Main Authors: Caswell, K. K, Bender, Christopher M, Murphy, Catherine J
Format: Article
Language:English
Subjects:
Applied sciences
Cross-disciplinary physics: materials science
rheology
Exact sciences and technology
Materials science
Metals. Metallurgy
Nanoscale materials and structures: fabrication and characterization
Physics
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Summary:We report a method to make crystalline silver nanowires in water, in the absence of a surfactant or polymer to direct nanoparticle growth, and without externally added seed crystallites. The reaction is one in which silver salt is reduced to silver metal, at 100 °C, by sodium citrate, in the presence of NaOH. Hydroxide ion concentration is key to producing nanowires, which are up to 12 microns long, instead of nanospheres.
ISSN:1530-6984
1530-6992
DOI:10.1021/nl0341178