Reduction of NO2in N2by Non-Thermal Plasmas

Experimental results on the chemical reduction of dilute concentrations of NO2in N2by pulsed corona and dielectric-barrier discharge processing axe presented. The initial reduction of NO2proceeds via N + NO2→ N2O + O. The subsequent reduction of NO2then proceeds via O + NO2-► NO + O2, followed by N + NO → N2 + O; the latter reaction reproduces O radicals to initiate the next NO2reduction cycle.