Back to Search
Start Over
A facile water-assisted route for synthesis of tungsten dioxide (WO2) nanopowders
- Source :
- Powder Technology. 256:1-4
- Publication Year :
- 2014
- Publisher :
- Elsevier BV, 2014.
-
Abstract
- The possibility of reducing the size of bulk materials, particularly making nanoparticles with controlled size, structure and shape offers massive benefits for various applications. In this respect, we report a novel water-assisted method to produce clusters of WO2 nanopowders with very high conversion yields of 90%. The proposed process is simplistic in its nature and carried out at room temperature. Nanopowders were obtained as a result of the hydrolysis of the tungsten precursor (WCl6) in the presence of NaBH4. Particle sizes of the as-synthesised partially crystallized nanopowders show a uniform distribution around 35 nm. Fully crystallized nanopowders without any morphological alteration were successfully produced already after annealing at 500 degrees C for 2 h. The nanopowders were examined using electron microscopy, XRD and DSC. (C) 2014 Elsevier B.V. All rights reserved.
Details
- ISSN :
- 00325910
- Volume :
- 256
- Database :
- OpenAIRE
- Journal :
- Powder Technology
- Accession number :
- edsair.doi.dedup.....b790802b142bde88ea52f211879303bd