In-situ monitoring of UF5 nanoparticle growth in a plug-flow reactor by a low-pressure differential mobility analyzer

被引:2
作者
Hirasawa, M
Kuga, Y
Seto, T
Okuyama, K
Takeuchi, K
机构
[1] RIKEN, Inst Phys & Chem Res, Wako, Saitama 3500198, Japan
[2] Muroran Inst Technol, Dept Appl Chem, Muroran, Hokkaido 0508585, Japan
[3] Natl Inst Adv Ind Sci & Technol, Res Ctr Adv Mfg Nanoscale Sci & Engn, Tsukuba, Ibaraki 3058564, Japan
[4] Hiroshima Univ, Dept Chem Engn, Hiroshima 7390046, Japan
来源
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING | 2002年 / 74卷 / 04期
关键词
D O I
10.1007/s003390101022
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The dependence of UF5 nanoparticle size distribution on growth time was investigated for various initial concentrations of UF5 monomers. UF5 nanoparticles prepared by photodissociation of UF6 in a mixed-flow reactor were allowed to pass through a plug-flow reactor (PFR), and their size distribution was measured by an in-situ size-monitoring system, namely a low-pressure differential mobility analyzer. By changing the length of the PFR, the growth time in the PFR was controlled from 0 to 30 s. An analysis using, Lee's coagulation model revealed that the growth mechanism of the UF5 nanoparticles involved a Brownian coagulation process and that the sticking probability of the nanoparticles was approximately unity.
引用
收藏
页码:513 / 517
页数:5
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