Preparation of ceria-zirconia solid solution with enhanced oxygen storage capacity and redox performance  

作　　者：Lijing MENG Licheng LIU Xuehong ZI Hongxing DAI Zhen ZHAO Xinping WANG Hong HE 

机构地区：[1]Laboratory of Catalysis Chemistry and Nanoscience,College of Environment and Energy Engineering,Beijing University of Technology,Beijing 100124,China [2]State Key Laboratory of Heavy Oil Processing,China University of Petroleum,Beijing 102249,China [3]State Key Laboratory of Fine Chemicals,Dalian University of Technology,Dalian 116024,China

出　　处：《Frontiers of Environmental Science & Engineering》2010年第2期164-171,共8页环境科学与工程前沿（英文）

基　　金：the National High-Tech Research and Development Program of China(Grant No.2006AA06Z347);the National Natural Science Foundation of China(Grant Nos.20877006 and 20833011).

摘　　要：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 Xray diffraction(XRD),N2 adsorption,hydrogen temperature-programmed reduction(H2-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.

关 键 词：membrane reaction CERIA-ZIRCONIA Ce/Zr molar ratio solid solution hydrogen temperatureprogrammed reduction(H2-TPR) 

分 类 号：O64[理学—物理化学]