Hydrothermal Preparation and Oxygen Storage Capacity of Nano CeO2-based Materials
- Received Date: 2007-08-30
- Rev Recd Date: 2007-09-04
Abstract: "catalysts were synthesized by hydrothermal method. The X-ray diffraction result showed that the averageparticle size was in the range of 11-12 nm, which was correspondence to the high-resolution transmission electron microscopy result that the average particle size was about 12 nm. The specific surface area of the NiO-CeO2 binary compounds was in the range of 54-75 m2/g. Also the average particle size of the Bi2O3-CeO2 binary compounds was in the range of 8-11 nm. The oxygen storage capacity of the NiO-CeO2 and Bi2O3-CeO2 binary compounds was investigated under reduction and oxidation conditions. When the Ni and Bi concentration in CeO2 was up to 30%, the OSC values reached 2465 and 2560 1molO/g separately, which indicated that NiO and Bi2O3 compounded CeO2 materials have fine catalysis activity than other cations doped CeO2-based materials and appear to be very promising for practical applications such as OSC materials"
|Citation:||Li-li Liu, Mei Zhang, Min Guo, Xi-dong Wang. Hydrothermal Preparation and Oxygen Storage Capacity of Nano CeO2-based Materials[J]. Chinese Journal of Chemical Physics , 2007, 20(6): 711-716. doi: 10.1088/1674-0068/20/06/711-716|