Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1249660 | Vibrational Spectroscopy | 2010 | 5 Pages |
Abstract
In this work we studied the thermal stability of single walled MoO3 nanotubes using Raman spectroscopy technique. By increasing the thermal treatment temperature we observed at about 210 °C that the Raman spectrum characteristic of single walled MoO3 nanotubes changes and the new spectrum is identified to the MoO3 bulk orthorhombic phase (α-MoO3). In situ Raman measurements as a function of temperature increase confirm the collapse of the nanotube structure at about 210 °C. Scanning electron microscopy images confirm the morphology changes in the single walled MoO3 nanotubes for samples treated at different temperatures.
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Authors
Jose V. Silveira, Jerias A. Batista, Gilberto D. Saraiva, Josue Mendes Filho, Antonio G. Souza Filho, Shi Hu, Xun Wang,