Abstract
Ti-MCM-41 samples were nitridated with NH3 in different conditions and characterized by CHN elemental analysis, XRD, N2 adsorption, Py-IR and UV–Vis. The influence of nitridation conditions on crystallinity, structure and N content was investigated. The N content increased with nitridating temperature, and all samples retained a hexagonal structure. A higher nitridating temperature caused a shrink in the Ti-MCM-41 pores. The epoxidation of propene with cumene hydroperoxide (CHP) catalyzed by these Ti-MCM-41 catalysts in a fixed-bed reactor was studied. Though the CHP conversion fell from 70.6 % to 64.7 % on the Ti-MCM-41 catalyst nitridated at 400 °C for 4 h without calcining template, the CHP efficiency increased from 60.2 % to 79.6 %.
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Liu, J., Ni, X. & Hu, Y. Influence of nitridation on the catalytic performance of Ti-MCM-41 for the epoxidation of propene by cumene hydroperoxide. Reac Kinet Mech Cat 114, 685–695 (2015). https://doi.org/10.1007/s11144-014-0803-2
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DOI: https://doi.org/10.1007/s11144-014-0803-2