Dresden 2020 – wissenschaftliches Programm
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UP: Fachverband Umweltphysik
UP 5: Poster Session
UP 5.7: Poster
Mittwoch, 18. März 2020, 14:00–16:00, P2/4OG
Influence of electrode materials on the dissociation of NO2, NO and CO2 via cold dielectric barrier discharge plasmas — •Maik Szafarska1,2, Georgia Sourkouni-Argirusi1, and Wolfgang Maus-Friedrichs1,2 — 1Clausthaler Zentrum für Materialtechnik — 2Institut für Energieforschung und Physikalische Technologien
The purification of exhaust gas via cold dielectric barrier discharge plasmas aims to reduce the amount of emitted carbon dioxide or nitrogen oxides because it is an important aspect concerning air quality and greenhouse gas emissions. To find application in automotives, ships or other devices with polluting properties, dissociation rates have to be high and a cheap, robust and preferentially light reactor has to be developed. Gas mixtures were varied as well as the electrode materials, reactor materials and plasma parameters. Plasma induced changes to the gas mixture were analyzed via quadrupole mass spectrometry. The experimental results show that electrode material selection can have an impact on dissociation efficiency. In some cases, surface reactions between the electrodes and gases can be observed aswell. The tested electrodes consisted of copper, stainless steel and nickel.