(6ba) Frabrication of Fe-ZSM-5@CeO2 Catalysts with a Core-Shell Structure and the Enhanced Performances for the Selective Catalytic Reduction of NO with NH3

Chen, L., Zhejiang University
Li, S. J., Zhejiang University
Li, W., Zhejiang University
Wang, X., Key Laboratory of Biomass Chemical Engineering of Ministry of Education, Institute of Industrial Ecology and Environment, College of Chemical and Biological Engineering, Zhejiang University
Research Interests: We have rationally designed and originally developed a high-performance deNOx catalyst based on core-shell structured Fe-ZSM-5@CeO2, which are synthesized via a solvothermal method. The as-prepared catalysts have been characterized systematically to elucidate their morphological structure and surface properties. As compared with conventional Fe-ZSM-5/CeO2, Fe-ZSM-5@CeO2 possess a much better catalytic activity, higher N2 selectivity, more extensive operating-temperature window, higher stability, and SO2 tolerance. The feature of hollow and porous structures provides a larger surface area and more active sites to adsorb and activate reaction gases, resulting in the high performance. Moreover, the uniform distribution and strong interaction of Fe-ZSM-5 and CeO2 species not only enhance the catalytic cycle but also inhibit the deactivation of Fe-ZSM-5, resulting in high catalytic cycle stability.

Teaching Interests: The excellent deNOx performance of Fe-ZSM-5@CeO2 can be attributed to the core-shell structures, the uniform distribution of active sites, as well as the strong interaction of Fe-ZSM-5and CeO2 species. The excellent catalytic performance suggests that Fe-ZSM-5@CeO2 is promising candidates for low-temperature deNOx catalysts. More importantly, the present study indicates that the core-shell architectures and well-dispersed active components can effectively enhance the performance of catalysts.