Chemical Activity of Coplanar DBD with Al2O3 and TiO2 Electrodes Tested on VOC Decomposition
Machala Z., Hensel K., Síč J., Ráheľ J.
29th International Conference on Phenomena in Ionized Gases XXV ICPIG, Cancun (Mexico), July 12-17, CD-ROM (2009)
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Abstract: The chemical effects of coplanar surface DBD at atmospheric pressure in air and air with diluted toluene (300-2500 ppm) were investigated comparing two electrode ceramics – pure Al2O3 and TiO2 coated Al2O3. In air, the discharge produced mostly ozone, the most effectively for 1000-2000 J/l with TiO2 ceramic. In air with toluene, the toluene decomposition was observed with the efficiencies increasing with the energy density up to some 2000 J/l, and reaching 50% (Al2O3) and 70% (TiO2). Toluene was decomposed mostly to water, CO2, CO and HCOOH. TiO2 ceramic improved the decomposition efficiency and CO2 selectivity, and reduced the energy costs and the production of noxious gases, especially NO2. Solid organic polymer was deposited on the ceramics but the discharge on TiO2 ceramic demonstrated a self-cleaning effect.
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Citations: | 1.) | M. Šimor, Y. Creyghton: Treatment of polymer surfaces with surface dielectric barrier discharge plasmas in Atmospheric pressure plasma treatment of polymers: Relevance to adhesion (edited by M. Thomas, K.L. Mittal), Wiley, Weinheim, Germany, 27-81, (2013), citation no. 56, WoS
(2013)
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