A polyol-mediated synthesis of titania-based nanoparticles and their electrochemical properties.
J Nanosci Nanotechnol
; 7(11): 3954-8, 2007 Nov.
Article
em En
| MEDLINE
| ID: mdl-18047095
ABSTRACT
Ti-based nanoparticles were prepared in polyol mediums of EG (ethylene glycol) and TEG (triethylene glycol), with heating treatment. Ti-based materials of dried power and heated samples showed average sizes of 4, 10, 3, and 8 nm with spherical shapes and monodispersed state, respectively. The XRD patterns of TiO2 and Li4Ti5O12 materials of dried powder and heated samples were indexed to anatase phase TiO2 (space group I4(1)/amd) and the spinel phase (space group Fd3m) except for the dried powder sample of Li4Ti5O12, which was corresponded with amorphous-like characteristics from the X-ray diffraction and electron diffraction pattern of Field emission-TEM analysis. The TiO2 and Li4Ti5O12 samples after heat-treated at 500 degrees C exhibited excellent high rate capabilities at a current density of 0.4 mA/cm2 during extended cycles due to their electrochemically beneficial highly crystalline characteristics, nano-sized (approximately 10 nm), and uniform distributions state.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Polímeros
/
Titânio
/
Cristalização
/
Nanotecnologia
/
Nanoestruturas
/
Eletroquímica
Idioma:
En
Ano de publicação:
2007
Tipo de documento:
Article