Citation: ZHAO Fu-Zhen, ZENG Peng-Hui, JI Sheng-Fu. Preparation, Characterization and CO Catalytic Oxidation Performance of CuxCe1-xO2-x/SBA-15/Cordierite Monolithic Catalysts[J]. Chinese Journal of Inorganic Chemistry, ;2013, 29(4): 753-759. doi: 10.3969/j.issn.1001-4861.2013.00.122
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Cu0.5Ce0.5O1.5/SBA-15/cordierite monolithic catalysts with the Cu0.5Ce0.5O1.5 content from 10% to 60% and 50%CuxCe1-xO2-x/SBA-15/cordierite (x=0~1) monolithic catalysts were prepared using the cordierite as the support and the CuxCe1-xO2-x/SBA-15 as the catalytic component. The catalysts were characterized using Low Temperature Nitrogen Adsorption-Desorption, XRD, XPS and H2-TPR. The catalytic activity of the catalysts for the oxidation of CO was evaluated. The results indicate that the mesoporous structure of SBA-15 is retained in the monolithic catalysts. There are the CuO and CeO2 phases in addition to the cordierite phase. On the surface of the catalyst Cu exists as Cu2+ and Cu+ species and Ce is as Ce4+ species. The redox performance of the monolithic catalysts is related with the Cu0.5Ce0.5O1.5 content and the ratio of the Cu and Ce in the CuxCe1-xO2-x/SBA-15. 50%Cu0.5Ce0.5O1.5/SBA-15/cordierite monolithic catalyst exhibits the best catalytic activity. CO can be completely oxidized at 140℃.
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