Author | dc.contributor.author | Zárate Aliaga, Ramón | |
Author | dc.contributor.author | Fuentes, S. | es_CL |
Author | dc.contributor.author | Cabrera, A. L. | es_CL |
Author | dc.contributor.author | Fuenzalida, V. M. | es_CL |
Admission date | dc.date.accessioned | 2010-01-28T20:43:50Z | |
Available date | dc.date.available | 2010-01-28T20:43:50Z | |
Publication date | dc.date.issued | 2008-07-15 | |
Cita de ítem | dc.identifier.citation | JOURNAL OF CRYSTAL GROWTH, Volume: 310, Issue: 15, Pages: 3630-3637, 2008 | en_US |
Identifier | dc.identifier.issn | 0022-0248 | |
Identifier | dc.identifier.uri | https://repositorio.uchile.cl/handle/2250/125292 | |
Abstract | dc.description.abstract | Na2Ti6O13 nanowires have been synthesized using a simple hydrothermal reaction at 130 1C between
TiO2 particles and NaOH aqueous solution. Subsequently the samples were annealed at 500 1C in air for
24 h. Field emission scanning electron microscope(FEG-SEM) and low-magnification transmission
electron microscope(TEM) inspection showed wire-like structures with uniform diameters and high
contrast, indicating the formation of single crystals. High-resolution transmission electron microscope(
HRTEM) and 2-D fast Fourier transform confirmed that the annealed structures correspond to
hexatitanate single crystals with diameters between 20 and 120 nm and lengths ranging from 500 nm to
1 mm. Structural characterization was performed by X-ray diffraction(XRD) and Raman spectroscopy.
Annealed samples presented diffraction patterns and Raman vibrational spectra corresponding to the
sodium hexatitanate indexed as Na2Ti6O13. FEG-SEM and TEM inspection of the synthesized samples
without annealing showed belt- and tube-like structures with diameters between 10 and 60nm and
several micrometers in length. However, their crystalline structure could not be determined using the
same techniques applied to the annealed samples. | en_US |
Patrocinador | dc.description.sponsorship | One of them (A.Z.) acknowledges to Fundación Andes for its
support to the Experimental Physics, under the grant No C-13876. | en_US |
Lenguage | dc.language.iso | en | en_US |
Publisher | dc.publisher | ELSEVIER SCIENCE BV | en_US |
Keywords | dc.subject | Hydrothermal crystal growth | en_US |
Título | dc.title | Structural characterization of single crystals of sodium titanate nanowires prepared by hydrothermal process | en_US |
Document type | dc.type | Artículo de revista | |