Polymer-induced generation of anatase TiO2 hollow nanostructures
| Autor: | Xiaoxu Li, Lufeng Zou, Yujie Xiong, Yi Xie, Mingtai Wang |
|---|---|
| Rok vydání: | 2008 |
| Předmět: |
chemistry.chemical_classification
Ostwald ripening Anatase Materials science Inorganic chemistry chemistry.chemical_element Crystal growth General Chemistry Polymer Condensed Matter Physics Titanium oxide Dye-sensitized solar cell symbols.namesake chemistry.chemical_compound chemistry Chemical engineering Mechanics of Materials Titanium dioxide symbols General Materials Science Titanium |
| Zdroj: | Microporous and Mesoporous Materials. 112:641-646 |
| ISSN: | 1387-1811 |
| DOI: | 10.1016/j.micromeso.2007.10.034 |
| Popis: | In this letter, we presented a polymer-induced generation of anatase TiO2 hollow nanostructures. Amphiphilic polymer PEG-400 was employed for the first time to slow down the hydrolization reaction of potassium titanium oxalate and control over the crystal growth and organization. Hollow spheres with a diameter of around 100 nm were finally obtained and demonstrated good dye-sensitized solar cell performances. The shape evolution of anatase TiO2 nanostructures indicated that the formation mechanism was based on an Ostwald ripening process. We believe this work is a facile synthetic approach to hollow spheres. Besides, it can also give a contribution to the understanding of Ostwald ripening process. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect