Towards thiol functionalization of vanadium pentoxide nanotubes using gold nanoparticles

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Lavayen, Vladimir
O'Dwyer, Colm
Cardenas, G.
Gonzalez, Guillermo
Sotomayor Torres, Clivia M.
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Template-directed synthesis is a promising route to realize vanadate-based 1-D nanostructures, an example of which is the formation of vanadium pentoxide nanotubes and associated nanostructures. In this work, we report the interchange of long-chained alkyl amines with alkyl thiols. This reaction was followed using gold nanoparticles prepared by the Chemical Liquid Deposition (CLD) method with an average diameter of ∼0.9 nm and a stability of ∼85 days. V2 O5 nanotubes (VOx-NTs) with lengths of ∼2 μm and internal hollow diameters of 20-100 nm were synthesized and functionalized in a Au-acetone colloid with a nominal concentration of ∼ 4 × 1 0- 3 mol dm-3. The interchange reaction with dodecylamine is found only to occur in polar solvents and incorporation of the gold nanoparticles is not observed in the presence of n-decane.
Nanostructures , Chemical synthesis , Electron diffraction , Electron microscopy , Optical properties
Lavayen, V., O' Dwyer, C., Cardanes, G., Gonzalez, G. and Sotomayor Torres, C. M. (2007) 'Towards thiol functionalization of vanadium pentoxide nanotubes using gold nanoparticles'. Material Research Bulletin, 42(4), pp. 674–685.