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Conflict of Interest: In relation to this article, we declare that there is no conflict of interest.

Publication history: Received March 2, 2007
Accepted July 12, 2007

This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Feasibility study to design a particle deposition unit utilizing electrophoresis for off-line measurements

Jung Hyeun Kim^†

Department of Chemical Engineering, University of Seoul, 90 Jeonnong-dong Dongdaemun-gu, Seoul 130-743, Korea

jhkimad@uos.ac.kr

Korean Journal of Chemical Engineering, March 2008, 25(2), 377-382(6), 10.1007/s11814-008-0063-9

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Abstract

Nanoparticles are widely used in various applications such as catalysts, mechanical polishing, composite materials, size standards, and structural templates. For those applications, sometimes it is necessary to sample nanoparticles onto clean substrates and onto a designated area. In this article, electrophoresis is demonstrated as a very feasible method to sample the desired number of particles onto a specific area of a substrate without contamination problems. In addition, an analytical equation was derived for estimation of deposition area, and compared with the experimental results. Pure copper particles generated by spray pyrolysis were used for size-classifications and depositions. Particle depositions were performed at 2,000 V and 7,000 V, and light scattering parameters from those deposited samples were measured; results showed good agreement of deposition area between estimations and measurements. Therefore, the use of the electrophoresis is promising in sampling particulates onto clean substrates without contamination and onto the designated sampling area with controlled number density.

Keywords

Nanoparticles Electric Field Aerosol Deposition

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