Type

Journal Article

Authors

Clivia M. Sotomayor Torres
Simon B. Newcomb
Guillermo Gonzalez
M. A. Santa Ana
Eglantina Benavente
Vladimir Lavayan
D. Navas
Colm O'Dwyer

Subjects

Chemistry

Topics
nano urchin nanotube nanostructures nanostructure self assembly three dimensional nanocomposite vanadium oxide

Nano-urchin: The formation and structure of high-density spherical clusters of vanadium oxide nanotubes (2006)

Abstract We report the observation of urchin-like nanostructures consisting of high-density spherical nanotube radial arrays of vanadium oxide nanocomposite, successfully synthesized by a simple chemical route using an ethanolic solution of vanadium tri-isopropoxide and alkyl amine hexadecylamine for 7 days at 180oC. The results show that the growth process of the NanoUrchin occurs in stages, starting with a radial self-organized arrangement of lamina followed by the rolling of the lamina into nanotubes. The longest nanotubes are measured to be several micrometers in length with diameters of ~120 nm and hollow centers typically measured to be ~75 nm. The NanoUrchin have an estimated density of nanotubes of ~40 sr-1. The tube walls comprise layers of vanadium oxide with the organic surfactant intercalated between atomic layers. The interlayer distance is measured to be 2.9 ± 0.1 nm and electron diffraction identified the vanadate phase in the VOx nanocomposite as orthorhombic V2O5. These nanostructures may be used as three-dimensional composite materials and as supports for other materials.
Collections Ireland -> University College Cork -> Research Institutes and Centres
Ireland -> University College Cork -> Applied Nanoscience Group - Journal Articles
Ireland -> University College Cork -> Tyndall National Institute
Ireland -> University College Cork -> Applied Nanoscience Group
Ireland -> University College Cork -> Chemistry
Ireland -> University College Cork -> Chemistry - Journal Articles
Ireland -> University College Cork -> College of Science, Engineering and Food Science
Ireland -> University College Cork -> Micro-Nanoelectronics Centre

Full list of authors on original publication

Clivia M. Sotomayor Torres, Simon B. Newcomb, Guillermo Gonzalez, M. A. Santa Ana, Eglantina Benavente, Vladimir Lavayan, D. Navas, Colm O'Dwyer

Experts in our system

1
Colm O'Dwyer
University College Cork
Total Publications: 121