Cu/ZSM-5 and CeO₂-modified Cu/ZSM-5 catalysts were prepared by a wetness impregnation method. The addition of CeO₂ was found to enhance the NO_x selective catalytic reduction(SCR) activity of the catalyst at low temperatures, but the high-temperature activity was weakened. The catalysts were characterized by X-ray diffraction(XRD), nitrogen physisorption, inductively coupled plasma optical emission spectrometry(ICP-OES), X-ray photoelectron spectroscopy(XPS), elec...

【文章頁數(shù)】：6 頁

【文章目錄】：
1 Experimental
    1.1 Catalyst preparation
    1.2 Activity measurement
    1.3 Catalyst characterization
2 Results and discussion
    2.1 Structural properties
    2.2 Catalytic activity
    2.3 EPR studies
    2.4 H2-TPR studies
    2.5 NH3-TPD studies
3 Conclusions



本文編號：4003415