Li W.,East China University of Science and Technology |
Zhao Y.,Shanghai Huaming Gaona Rare Earth New Materials Co. |
Chen X.,Shanghai Huaming Gaona Rare Earth New Materials Co. |
Yang X.,Shanghai Huaming Gaona Rare Earth New Materials Co. |
And 3 more authors.
Zhongguo Xitu Xuebao/Journal of the Chinese Rare Earth Society | Year: 2010
Cerium zirconium solid solution Ce0.6Zr0.3La0.05 Y0.05O2 was prepared by precipitation. The products were characterized by BET, XRD, SEM, TPR and oxygen pulse adsorption. The effects of high temperature hydrothermal treatment, surface treatment of the hydroxide precursor, and reduction treatment of solid solution on properties of solid solution were investigated. The high temperature hydrothermal treatment of the hydroxide precursor and reduction treatment of solid solution had great influences on redox property of the solid solution. After aging at 1000°C for 4 h and reduction treatment under 800°C for 3 h, the solid solution prepared by high temperature hydrothermal treatment showed high thermal stability, specific surface area and oxygen storage capacity. The specific surface area, pore volume, and oxygen storage capacity were 25.3 m2·g-1, 0.21 cm3·g-1, and 478.3 μmol·g-1, respectively.