Dielectric Barrier Discharge in CO2: electrical and optical characterization
Résumé
In the past ten years, studies on CO2 have known a growing interest [1] [2]. Among them, CO2 recycling [3], design of spacecraft shields for atmosphere re-entry, or oxygen production [4] [5] in the frame of the future Mars missions are of major concern. Non-equilibrium plasmas are an excellent way to induce chemistry in gases. At atmospheric pressure, dielectric barrier discharges (DBD) are widely used to generate cold plasmas, avoiding the transition to the arc regime. Usually, at this pressure, DBDs are filamentary and homogeneous DBD are only reported for few gas compositions such as Nitrogen or noble gases (Ar, He, Ne) with a Penning admixture. In this work, we will present the very first results obtained in a homogeneous dielectric barrier discharge at atmospheric pressure in pure CO2.
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