Formation of α-TeO2 pearl-like microwires templated on porous microtubes through thermal oxidation of Te microtubes

Autor: M. Siciliano, T. Siciliano, M. Tepore, Alessandra Genga, Emanuela Filippo, G. Micocci
Přispěvatelé: Filippo, Emanuela, Siciliano, Tiziana, Genga, Alessandra, Micocci, Gioacchino, Siciliano, Maria, Tepore, Marco
Rok vydání: 2013
Předmět:
Zdroj: Applied Surface Science. 265:329-333
ISSN: 0169-4332
DOI: 10.1016/j.apsusc.2012.11.005
Popis: The current work demonstrates the first reported successful synthesis of unique alpha-TeO2 hybrid microstructures through thermal oxidation of Te microtubes in a horizontal tube furnace at different temperatures in the range 220-470 degrees C, under oxygen flow. The obtained microstructures were carefully characterized by scanning electron microscopy, transmission electron microscopy, X-ray diffraction and Raman spectroscopy. They exhibited characteristic morphologies with porous scaffold microtubes covered along their whole length with pearl-like microwires. The possible formation mechanism of the obtained microstructures was also discussed.
Databáze: OpenAIRE