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Comparative structural–vibrational study of nano‐urchin and nanorods of vanadium oxide
Author(s) -
Lavayen V.,
O'Dwyer C.,
Santa Ana M. A.,
Newcomb S. B.,
Benavente E.,
González G.,
Sotomayor Torres C. M.
Publication year - 2006
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.200669107
Subject(s) - nanorod , pentoxide , vanadium , vanadium oxide , raman spectroscopy , nano , materials science , infrared , infrared spectroscopy , analytical chemistry (journal) , nanotechnology , chemistry , optics , physics , organic chemistry , composite material , metallurgy
We present a comparative structural–vibrational study of nanostructured systems of V 2 O 5 : 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‐V 5+ ). The infrared vibrational spectra of the nanorods sample also exhibit a distorted laminar V 2 O 5 structure with evidence observed for quadravalent V 4+ species at 921 cm –1 . (© 2006 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
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