Ozone Generation from Argon-Oxygen Mixtures in Presence of Different Packing Materials within Dielectric Barrier Discharge Gap

摘要

Assessments of ozone yield and concentration in Dielectric Barrier Discharge of argon-oxygen mixtures in presence of various packing materials are discussed. These include zeolite molecular sieve 13X pellets, Pyrex beads, Pyrex wool, and porous TiO2-beads, which presented differential reactive surfaces, nano cavities, photo-catalysis, and dissimilar ionic environments. Their utility was evaluated in conjunction with varied gas composition, flow rate, and electrical inputs. In a mixture of 3-21% O2 in argon, the ozone concentration ranged between 16-980 ppm, simultaneous measurements of in situ energy dissipation revealed its yield, G(O3) to change independently from 0.002 to 2.020 μmol J~(-1). TiO2 packing emerged as the most versatile material to produce O3 in high concentration and yield.