Reduction of nitrogen oxide using ammonia radical prepared by intermittent dielectric barrier discharge

Summary form only given. The plasma processes have attracted attention because of their low instrumental costs and simple process, where the plasma-induced radicals efficiently convert NO/sub x/ into harmless gases such as N/sub 2/, O/sub 2/, and H/sub 2/O. This study used the method of radical injection, where the ammonia radicals were externally generated by dielectric barrier discharge in a separate chamber of a small volume through electron-impact dissociation and ionization, and were injected in NO/sub x/ gas to reduce the NO/sub x/ molecules. The method of radical injection is efficient in large-scale NO/sub x/ removal. NO in N/sub 2/ gas was reduced by the ammonia radicals, which were generated by flowing the NH/sub 3/ gas diluted with Ar gas through dielectric barrier discharge with one-cycle sinusoidal (OCS)-wave power source.