Abstract
In the present study, tungsten oxide nanopowders and nanorods were synthesized by a modified plasma arc gas condensation technique. A blowing mixed gas with controllable partial oxygen pressure was introduced into the gas condensation system and tungsten oxide powders in nanoscale can be prepared. The experimental results show that yellow and blue tungsten oxide nanopowders, prepared under an Ar to O2 ratio of 1:1 and 100:1, exhibited a major WO3 and W19O55 phase, respectively. The nanoparticles grow into W5O14-phase nanorods along [001] direction when hydrogen served as the reduction gas.
Original language | English |
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Title of host publication | 2007 NSTI Nanotechnology Conference and Trade Show - NSTI Nanotech 2007, Technical Proceedings |
Pages | 261-264 |
Number of pages | 4 |
Volume | 4 |
Publication status | Published - 2007 |
Externally published | Yes |
Event | 2007 NSTI Nanotechnology Conference and Trade Show - NSTI Nanotech 2007 - Santa Clara, CA, United States Duration: May 20 2007 → May 24 2007 |
Other
Other | 2007 NSTI Nanotechnology Conference and Trade Show - NSTI Nanotech 2007 |
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Country/Territory | United States |
City | Santa Clara, CA |
Period | 5/20/07 → 5/24/07 |
Keywords
- Gas condensation
- Nanoparticles
- Nanorods
- Tungsten oxide
ASJC Scopus subject areas
- Mechanical Engineering