Issue Eur. Phys. J. Appl. Phys. Volume 47, Number 2, August 2009 11th International Symposium on High Pressure, Low Temperature Plasma Chemistry (HAKONE XI) Article Number 22804 Number of page(s) 7 Section 11th International Symposium on High Pressure, Low Temperature Plasma Chemistry (HAKONE XI) DOI 10.1051/epjap/2009088 Published online 27 May 2009

Eur. Phys. J. Appl. Phys. 47, 22804 (2009)
DOI: 10.1051/epjap/2009088

Atmospheric pressure plasmas for aerosols processes in materials and environment

J.P. Borra, N. Jidenko and E. Bourgeois

Laboratoire de Physique des Gaz et Plasmas CNRS-Université Paris-Sud, 91405 Orsay; Supélec, 3 Rue Joliot Curie, 91192 Gif-sur-Yvette, France

jp.borra@pgp.u-psud.fr

Received: 17 December 2008 / Received in final form: 26 January 2009 / Accepted: 18 February 2009 / Published online: 27 May 2009

Abstract
The paper highlights applications of some atmospheric pressure plasmas (dc-corona, streamer and spark and ac-Dielectric Barrier Discharges) to aerosol processes for Materials and Environment (filtration, diagnostics). The production of vapor i.e. condensable gaseous species, leads to nano-sized particles by physical and chemical routes of nucleation in these AP plasmas: (i) when dc streamer and spark filamentary discharges as well as ac filamentary dielectric barrier discharges interact with metal or dielectric surfaces, and (ii) when discharges induce reactions with gaseous precursors in volume. It is shown how composition, size and structure of primary nano-particles are related to plasma parameters (energy, number per unit surface and time and thermal gradients). Then the growth by coagulation controls the final size of agglomerates versus plasma parameters and transit time in and after the plasma. Charging and electro-thermal collection are depicted to account for the related potential applications of controlled kinematics of charged aerosol.

PACS
52.80.-s - Electric discharges.
81.20.Rg - Aerosols in materials synthesis and processing.
81.16.-c - Methods of nanofabrication and processing.

© EDP Sciences 2009

What is OpenURL?