| 초록 |
In order to investigate the effect of impregnation sequence on CeO2-promoted Mn/TiO2 catalyst for low-temperature NH3-SCR of NO, Mn/TiO2, Mn/Ce/TiO2, Mn-Ce/TiO2, and Ce/Mn/TiO2 catalysts were synthesized. Among these catalysts, Mn-Ce/TiO2 exhibited the highest catalytic performance due to Mn dispersion and oxidation state of Mn, Ce, and O, confirmed by TEM, XPS, and H2-TPR. Furthermore, DRIFT study showed that the catalyst synthesis method influenced the reaction mechanism which highly affects the catalytic activity. |
