Elaborating the improving SO2 resistance mechanism of CeWTi catalysts through framework confined ordered mesoporous structures for low-temperature NH3-SCR reaction

In this paper, an ordered mesoporous Ce-W-Ti-E catalyst with a framework confined structure had been constructed. The ordered mesoporous structures in the framework provided better specific surface area and abundant active sites for the catalyst. In addition, the confinement effect of the framework structure enhanced the interaction between Ce, W and Ti, thus speeding up the electron transfer efficiency and enhancing the redox capacity and acid sites of the catalyst.