Tungsten oxide nanopowders and nanorods prepared by a modified plasma arc gas condensation technique

C. Y. Su, Z. K. Yang, H. C. Lin, C. K. Lin, C. H. Chang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

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 languageEnglish
Title of host publication2007 NSTI Nanotechnology Conference and Trade Show - NSTI Nanotech 2007, Technical Proceedings
Pages261-264
Number of pages4
Volume4
Publication statusPublished - 2007
Externally publishedYes
Event2007 NSTI Nanotechnology Conference and Trade Show - NSTI Nanotech 2007 - Santa Clara, CA, United States
Duration: May 20 2007May 24 2007

Other

Other2007 NSTI Nanotechnology Conference and Trade Show - NSTI Nanotech 2007
CountryUnited States
CitySanta Clara, CA
Period5/20/075/24/07

Keywords

  • Gas condensation
  • Nanoparticles
  • Nanorods
  • Tungsten oxide

ASJC Scopus subject areas

  • Mechanical Engineering

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  • Cite this

    Su, C. Y., Yang, Z. K., Lin, H. C., Lin, C. K., & Chang, C. H. (2007). Tungsten oxide nanopowders and nanorods prepared by a modified plasma arc gas condensation technique. In 2007 NSTI Nanotechnology Conference and Trade Show - NSTI Nanotech 2007, Technical Proceedings (Vol. 4, pp. 261-264)