| 초록 |
Selective catalytic reduction of NOx with NH3 (NH3-SCR) requires a lot of research to solve problems such as poor catalytic efficiency at low temperature and the emission of unreacted ammonia (NH3-Slip). Accordingly, this study deals with the abatement of NOx for NH3-SCR and oxidation performance using the mainly emitted gases (NO, CO, NH3) of stationary source. As transition metals, Such as Cu, Ce, Co are known for excellent redox properties and characteristics of various redox species. We synthesized the catalyst by impregnating a selected transition metal into hexagonal boron nitride (h-BN). Compared to V/Ti catalysts synthesized by conventional methods, the catalyst modified with porous h-BN has enhanced particle anti-aggregation and the highly dispersed catalytic active metal particles improve activity at low temperatures and SCR performance. In addition, this study suggests the possibility of simultaneous removal of CO, NH3 through oxidation performance. The improved properties are mainly confirmed in X-ray photoelectron spectroscopy (XPS), temperature program desorption (TPD), temperature program reduction (TPR) |
