Eur. Phys. J. Appl. Phys.
Volume 47, Number 2, August 200911th International Symposium on High Pressure, Low Temperature Plasma Chemistry (HAKONE XI)
|Number of page(s)||5|
|Section||11th International Symposium on High Pressure, Low Temperature Plasma Chemistry (HAKONE XI)|
|Published online||28 April 2009|
In-flight coating of nanoparticles in atmospheric-pressure DBD torch plasmas
CREPE, Département de
Génie Chimique, Université de Sherbrooke, Sherbrooke, J1K 2R1, Canada
2 Tekna Plasma Systems Inc., Sherbrooke, Québec, J1L 2T9, Canada
3 Retired from ABB Corporate Research, 5405 Baden, Switzerland
Corresponding author: firstname.lastname@example.org
Accepted: 28 January 2009
Published online: 28 April 2009
Two DBD torch designs were used to investigate coating and surface functionalization of small particles. One had an annular discharge gap between coaxial quartz tubes, the second, suited for high throughput, used external shell electrodes on opposite sides of a quartz tube. Several discharge sections could be used in flow direction, with intermediate ports for particle and/or monomer injection. Both torches were operated by a sinusoidal high voltage (13 kV, 20 kHz). The coaxial torch always showed a filamentary discharge, while the shell-electrode design in He also produced diffuse glow discharges. A variety of different precursors and dielectric as well as metallic particles of nanometer or micrometer diameter were used.
PACS: 52.77.-j – Plasma applications / 52.80.-s – Electric discharges
© EDP Sciences, 2009
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