Sol-Gel-Derived Sb-Doped SnO2 Nanoparticles Controlled in Size by Nb2O5
✍ Scribed by X. Zhu; J. Geis-Gerstorfer
- Publisher
- John Wiley and Sons
- Year
- 2003
- Tongue
- English
- Weight
- 131 KB
- Volume
- 26
- Category
- Article
- ISSN
- 0930-7516
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✦ Synopsis
Nanocrystalline Sb-doped SnO 2 particles were prepared by sol-gel and their particle growth was controlled by niobium oxide. In the present synthesis, SnCl 4 and SbCl 3 , as precursors, were dissolved and hydrolyzed in ethylene glycol at 80±120 C, and further 0.1 mol.-% Nb 2 O 5 through its precursor NbCl 5 was mixed to the above solution. The mixture was then dried at 120±150 C and calcinated at 600 C for 2 hours. By XRD and TEM, Sb-doped SnO 2 nanoparticles were highly crystalline and their mean crystal size was ca.10±20 nm with narrow particle size distribution. As the addition of antimony increased, the crystallinity and particle size distribution of SnO 2 particles had the trend to decrease.