| 초록 |
Air pollution has recently become a critical global issue. In response, environmental regulations have been tightened to reduce the emissions of NOX, SOX, CO, VOCs, and PM from power plants. Nitrogen oxides (NO, NO2, and N2O) are dangerous as they can form secondary PM2.5 by reacting with water vapor, which causes acid rain, smog and global warming. Selective catalytic reduction technology has been used to reduce NOX emissions because of the most efficient NOX removal technology. Also, crystal structure of catalysts plays a key role on the activity of the catalytic materials and functional groups of catalysts that reacts with NOX are important for SCR, while it is still ambiguous. In this study, we explored the effect of crystallinity of catalysts was controlled by altering the synthesis process and functional group of catalysts was adjusted by adding the ammonium nitrate. Their properties were characterized by SEM, TEM, XRD, Raman, SAED, BET, XPS, TPD, TPR and fixed bed reactor. |
