Formation of quasi-single crystalline porous ZnO nanostructures with a single large cavity.
Nanoscale
; 3(9): 3841-8, 2011 Sep 01.
Article
en En
| MEDLINE
| ID: mdl-21842089
ABSTRACT
We report a method for synthesizing quasi-single crystalline porous ZnO nanostructures containing a single large cavity. The microwave-assisted route consists of a short (about 2 min) temperature ramping stage (from room temperature to 120 °C) and a stage in which the temperature is maintained at 120 °C for 2 h. The structures produced by this route were 200-480 nm in diameter. The morphological yields of this method were very high. The temperature- and time-dependent evolution of the synthesized powders and the effects of an additive, vitamin C, were studied. Spherical amorphous/polycrystalline structures (70-170 nm in diameter), which appeared transitorily, may play a key role in the formation of the single crystalline porous hollow ZnO nanostructures. Studies and characterization of the nanostructures suggested a possible mechanism for formation of the quasi-single crystalline porous ZnO nanostructures with an interior space.
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Óxido de Zinc
/
Nanoestructuras
Idioma:
En
Revista:
Nanoscale
Año:
2011
Tipo del documento:
Article