Model integration for metal nanoparticle synthesis by an rf thermal plasma flow with counterflow cooling

Masaya Shigeta, Takayuki Watanabe

研究成果: Article査読

2 被引用数 (Scopus)

抄録

Comprehensive modeling is attempted to simulate metal nanoparticle synthesis by an RF thermal plasma flow. On the basis of electromagnetic hydrodynamics, plasma heat transfer, and aerosol dynamics, the significant processes are modeled and integrated. The numerical results show good agreements with the experimental ones, which supports the validity of the present model. The model is applied to the efficient nanoparticle production system with counterflow cooling. The result shows that the RF thermal plasma flow has a high temperature zone over 9 000 K and a recirculating zone due to the Lorentz force. Nanoparticles are first formed at the interface between the plasma flow and the counterflow. Subsequently, the nanoparticles increase their sizes by coagulation among them with the decrease of their number and by heterogeneous condensation with vapor consumption. Because of the saturation pressure difference, a larger number of the platinum nanoparticles are produced and they provide a smaller volume mean diameter than the titanium nanoparticles.

本文言語English
ページ(範囲)2019-2028
ページ数10
ジャーナルNihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B
75
758
DOI
出版ステータスPublished - 2009 10

ASJC Scopus subject areas

  • 凝縮系物理学
  • 機械工学

フィンガープリント

「Model integration for metal nanoparticle synthesis by an rf thermal plasma flow with counterflow cooling」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル