期刊
FRONTIERS OF ENVIRONMENTAL SCIENCE & ENGINEERING IN CHINA
卷 4, 期 2, 页码 164-171出版社
HIGHER EDUCATION PRESS
DOI: 10.1007/s11783-010-0019-2
关键词
membrane reaction; ceria-zirconia; Ce/Zr molar ratio; solid solution; hydrogen temperature-programmed reduction (H(2)-TPR)
资金
- National High-Tech Research and Development Program of China [2006AA06Z347]
- National Natural Science Foundation of China [20877006, 20833011]
A new method called ultrasonic-assisted membrane reaction (UAMR) was reported for the fabrication of ceria-zirconia solid solution. A series of ceria-zirconia solid solutions with different Ce/Zr molar ratios were prepared by the UAMR method and characterized by X-ray diffraction (XRD), N(2) adsorption, hydrogen temperature-programmed reduction (H(2)-TPR), scanning electron microscope (SEM), and transmission electron microscopy (TEM) techniques. The UAMR method proved to be superior, especially when the Ce/Zr molar ratio was lower than 1, in fabricating ceria-zirconia solid solutions with large BET surface area, high oxygen storage capacity (OSC), and low reduction temperature.
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