Abstract
AbstractWe present a comparative structural–vibrational study of nanostructured systems of V2O5: nano‐urchin (VONURs) which are spherical structures composed of a radially oriented array of VOx nanotubes (VOx‐NTs) with a volumetric density of ∼40 sr–1, and vanadium oxide nanorods (VOx‐NRDs) with an average length of ∼100 nm. The Raman scattering spectrum of the nano‐urchin exhibits a band at 1014 cm–1 related to the distorted gamma conformation of the vanadium pentoxide (γ‐V5+). The infrared vibrational spectra of the nanorods sample also exhibit a distorted laminar V2O5 structure with evidence observed for quadravalent V4+ species at 921 cm–1. (© 2006 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
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