Nucleation and growth of oxide nanoparticles prepared by induction thermal plasmas

Takayuki Watanabe, Keiji Fujiwara

Research output: Contribution to journalArticlepeer-review

30 Citations (Scopus)

Abstract

The reactive evaporation method of injected metal powders was investigated for preparing oxide nanoparticles. The method has advantages such as evaporation is enhancement of the injected powder owing to exothermic reaction heat of the metal powder oxidation in induction thermal plasmas. Tangential gas flow injection to the plasma tail flame controls the diameter and the yield of the oxide nanoparticles. The purpose of this research is to investigate the effect of the injection gas flow on the preparation mechanism of oxide nanoparticles in thermal plasmas by experimental work and numerical analysis. An increase in the flow rate of the injection gas leads to an increase in the diameter as well as the yield of the prepared nanoparticles. Numerical analysis for nucleation and growth provides the preparation mechanism of the oxide nanoparticles; however, a more sophisticated model should be developed.

Original languageEnglish
Pages (from-to)1343-1361
Number of pages19
JournalChemical Engineering Communications
Volume191
Issue number10
DOIs
Publication statusPublished - Oct 2004
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Chemical Engineering(all)

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