Abstract
Tungsten oxide nanopowders and nanorods were synthesized by using a modified plasma arc gas condensation technique that involved the introduction of a mixed gas with controllable partial O2 pressure into a gas condensation system. Experimental results showed that yellow and blue tungsten oxide nanopowders, prepared under an Ar to O2 ratios of 1: 1 and 100: 1, exhibited a major WO3 phase and W19O55 phase, respectively. The nanopowders grew into W5O14-phase nanorods along the [001] direction when H2 was used as the reduction gas.
Original language | English |
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Pages (from-to) | 2593-2597 |
Number of pages | 5 |
Journal | Materials Transactions |
Volume | 50 |
Issue number | 11 |
DOIs | |
Publication status | Published - Nov 2009 |
Externally published | Yes |
Keywords
- Gas condensation
- Nanopowders
- Nanorods
- Tungsten oxide
ASJC Scopus subject areas
- Condensed Matter Physics
- Mechanics of Materials
- Mechanical Engineering
- General Materials Science