PM oxidation behavior of some kinds of catalysts that were coated on the SiC substrate were investigated for Non-Thermal Plasma Discharge- Photocatalyst(NTPDP) system. The catalyst samples were prepared with double layer coating method that consisted ...
PM oxidation behavior of some kinds of catalysts that were coated on the SiC substrate were investigated for Non-Thermal Plasma Discharge- Photocatalyst(NTPDP) system. The catalyst samples were prepared with double layer coating method that consisted of the P25(photocatalyst, bottom layer) and metal additives(upper layer). Carbon(Printex-U) as diesel soot was coated on the SIC honeycomb monolith with catalyst. P catalyst was observed better behavior to complete carbon oxidation in non application of the NTPDP system, and Ni catalyst was better at partial oxidation at same condition. Ni catalyst had some advantageous that carbon oxidation effectively oxidized at 250℃ and NOx reduction was reached about 15~20% at 370℃ in application of the NTPD. Moreover Ni catalyst provides stable operation of the NTPDP system. The SIC substrate has a good thermal durability that it can endures an arc discharge during transient plasma discharge.