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- W2357330275 abstract "Mesoporous Ti-pillared montmorillonite was prepared by employing a Sol-Gel method, and then was modified by SO42- and CeO2 respectively. With this material as carrier, Cu-based Ti-pillared montmorillonite mesoporous solid acid catalysts was therefore prepared. Structure of the prepared catalyst was characterized by means of BET,XRD, TPR, Py-IR, FTIR, XPS and SEM. The catalytic properties of the material for the selective reduction of NO by propylene in excess of oxygen were further studied. The results indicate that the pillaring agent can effectively insert into the layer of montmorillonite, creating a good mesoporous structure with the distribution of pores diameters centered at 3 to 7 nm,and furthermore, obviously increasing its specific surface area. In addition, it was revealed that the chelating ligand structure formed by SO42- with Ti caused an increase in the acid amount and facilitated the formation of Bronsted acid sites. Moreover, the presence of CeO2 promoter greatly prevented the aggregation of copper crystallites. Consequently, the reduction efficacy of copper was enhanced and the performance of the prepared catalysts was significantly improved." @default.
- W2357330275 created "2016-06-24" @default.
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- W2357330275 date "2005-01-01" @default.
- W2357330275 modified "2023-09-26" @default.
- W2357330275 title "Structure and Catalytic Properties of Mesoporous Ti-Pillared Montmorillonite Solid Acid Catalysts" @default.
- W2357330275 hasPublicationYear "2005" @default.
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