Effect of the reactor surface roughness on benzene oxidation in dielectric barrier discharges

Effects of the surface roughness of dielectric barrier discharge reactors on benzene decomposition are analyzed and compared. It is found that increasing the roughness of the reactor surface improves benzene consumption at low specific energy density (SED) and promotes CO formation and carbon balance at high SED. In addition, it is also found that the release of NO and NO2 is restrained in the reactor with a rough surface at high SED. It is suggested that these results are attributed to the surface reactions on the rough surface.