| 초록 |
Over the past decades, atmospheric environmentpolluted by fuels within carbon. Amongthe air pollutants, nitrogen oxides (NO, NO2, N2O, and etc.) are dangeroussource to human and causes acid rain, smog and global warming. Selectivecatalytic reduction technology has been used to reduce NOx emissions because itcan reduce up to 60-90%, not emits secondary pollutants. Nowadays, it is necessary to enhance the catalyticperformance at wide temperature range, also functional groups of catalyst play akey role on the catalytic activity. In this study, we adjusted the functional groupsof V2O5-WO3/TiO2 catalyst by adding nitrate ions. Their morphology and texturalproperties were confirmed by SEM and BET analysis, and their chemical states andcatalytic performance were verified by XPS, NH3-TPD, H2-TPR and fixed bedreactor. The results may be applied to the various fields that require the highperformance of catalytic properties at low temperature. |
