期刊
JOURNAL OF RARE EARTHS
卷 27, 期 2, 页码 211-215出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/S1002-0721(08)60221-5
关键词
mesostructured; ceria-zirconia solid solution; nanocrystals; rare earths
资金
- 973 Project [2004CB719500]
- New Century Excellent Talents in University [NCET-05-415]
- Natural Science Foundation of China [20673037]
Mesostructured Ce0.6Zr0.4O2 solid solutions were synthesized by coprecipitation combined with evaporation-induced self-assembly process. The obtained materials were characterized by X-ray diffractometer (XRD), Raman, transmission electron microscopy (TEM). N-2 sorption, and hydrogen temperature programmed reduction (H-2-TPR). The results showed that the solid solutions consisted of uniform nanocrystals, which piled homogeneous mesopores of about 4 nm. Furthermore, different surfactants had little influence on the mesoporous structures. All these samples exhibited high thermal stability.
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