[KSCI] Korea Science Citation Index Service

http://dx.doi.org/10.3740/MRSK.2003.13.5.323

Effects of Temperature and Precursor-concentration on Characteristics of TiO₂ Nanoparticles in Chemical Vapor Condensation Process -Part I: Real-time Particle Characterization by SMPS

Lee, Chang-Woo (Department of Metallurgy and Materials Science, Hanyang University)
Yu, Ji-Hun (Department of Metallurgy and Materials Science, Hanyang University)
Im, Sung-Soon (Department of Metallurgy and Materials Science, Hanyang University)
Yun, Sung-Hee (Department of Metallurgy and Materials Science, Hanyang University)
Lee, Jai-Sung (Department of Metallurgy and Materials Science, Hanyang University)
Choa, Yong-Ho (Department of New-Matarials Technology, Hanyang University)

Publication Information

Korean Journal of Materials Research / v.13, no.5, 2003 , pp. 323-327 More about this Journal

Abstract

Properties of nanoparticles synthesized during gas phase reaction were studied in terms of particle behaviors using real-time particle characterization method. For this study, $TiO_2$ nanoparticles were synthesized in the chemical vapor condensation process(CVC) and their in-situ measurement of particle formation and particle size distribution was performed by scanning mobility particle sizer(SMPS). As a result, particle behaviors in the CVC reactor were affected by both of number concentration and thermal coagulation, simultaneously. Particularly, growth and agglomeration between nanoparticles followed two different ways of dominances from coagulations by increase of number concentration and sintering effect by increased temperature.

Keywords

CVC process; real-time particle characterization; coagulation; sintering; SMPS;

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