Synthesis and characterization of mesostructured ceria-zirconia solid solution
来源期刊：JOURNAL OF RARE EARTHS2009年第2期
论文作者：WANG Yangang GU Xin WANG Yaojun LU Guanzhong LIU Xiaohui LI Changlin WANG Yanqin
Key words：mesostructured; ceria-zirconia solid solution; nanocrystals; rare earths;
Abstract: 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), N2 sorption, and hydrogen temperature programmed reduction (H2-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.
WANG Yangang1，GU Xin1，WANG Yaojun1，LU Guanzhong1，LIU Xiaohui1，LI Changlin1，WANG Yanqin1
(1.Laboratory for Advanced Materials,Research Institute of Industrial Catalysis,East China University of Science and Technology,Shanghai 200237,China)
Abstract: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), N2 sorption, and hydrogen temperature programmed reduction (H2-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.
Key words:mesostructured; ceria-zirconia solid solution; nanocrystals; rare earths;
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