Journal
CATALYSIS SURVEYS FROM ASIA
Volume 20, Issue 4, Pages 231-240Publisher
SPRINGER/PLENUM PUBLISHERS
DOI: 10.1007/s10563-016-9220-z
Keywords
Different dimension; CO catalytic oxidation; Nanocasting route; Cu-doped CeO2 catalyst
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Funding
- Wenzhou government's startup fund [WIBEZD2014004-02]
- National Basic Research Program of China [2013CB933201]
- National Natural Science Foundation of China [21375125, 201605116]
- Creative Research Group Project of National Natural Science Foundation of China [21321064]
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Transition metal oxides (TMOs) applied as catalysts whose catalytic activities are directly affected by their pores size and pores distributions. Herein, two-dimensional Cu-doped CeO2 (2D@Cu-CeO2) and three-dimensional Cu-doped CeO2 (3D@Cu-CeO2) were prepared by adopting the mesoporous silica SBA-15 and KIT-6 as templates, respectively. Nanometer Cu-doped CeO2 (nano@Cu-CeO2) was synthesized by the method of precipitation. All catalysts were evaluated for the catalytic oxidation of CO, and the 3D@Cu-CeO2 catalyst exhibited the highest catalytic activity (complete conversion temperature T-100 = 50 A degrees C), which can be ascribed to the three-dimensional porous channel structure, larger specific surface area and abundant active surface oxygen species. In addition, complete conversion of CO had remained the same after 3D@Cu-CeO2 was observed for 12 h, indicating it has the best catalytic stability for CO.
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