Self-cleaning effect of Al2O3 coplanar barrier discharge electrode with tio2 functional coating
Szalay Zs., Machala Z., Hensel K., Rahel J.
12th International Symposium on High Pressure Low Temperature Plasma Chemistry HAKONE XII, Trenčianske Teplice (Slovakia), September 12-17, p. 501-505 (2010)
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Abstract: The chemical effects of coplanar surface DBD at atmospheric pressure in air and air with diluted toluene (500-2000 ppm) were investigated comparing two electrode ceramics – 96% Al2O3 and the same ceramics with the TiO2 functional coating. In air with diluted toluene, the toluene
decomposition was observed with the efficiencies increasing with the energy density, reaching 67% (Al2O3) and 95% (TiO2). The gaseous products of toluene decomposition were mostly CO2, CO, HCOOH, HNO3 and water. A substantial difference was observed in the formation of solid organic polymer deposit between both ceramics. The simultaneous presence of discharge plasma microfilaments and TiO2 coating resulted in the complete absence of deposit formation. This selfcleaning effect has some important application in the field of plasma mediated polymer materials treatment.
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Citations: | 1.) | M. V. Sokolova, V. V. Voevodin, V. R. Soloviev, Ju. I. Malachov: Influence of barrier properties on dielectric barrier surface discharge driven by microsecond voltage pulses, 16th High Pressure Low Temperature Plasma Chemistry Symposium HAKONE XVI, Peking (China), September 2-7 (2018), citation no. X
(2018)
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