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中文摘要：
CeO2以及铈基材料在汽车尾气净化三效催化剂和甲烷催化燃烧等领域得到了广泛的研究与应用，但纯CeO2的抗老化性能很差，对提高其热稳定性研究已有的报道㈨．添加ZrO2可提高CeO2-ZrO2的热稳定性能及储氧性能．在CeO2-ZrO2中添加少量Y^3＋能产生更多的氧空穴和Ce^3＋，提高体相氧的移动性能及储氧性能，促进Ce^4＋←→Ce^3＋之间的相互转换．本文研究了铈锆摩尔比对Ce0.3＋xZr0.6-xY0.1O1.95系列储氧材料性能的影响，得到了一些有意义的结果．
英文摘要：
A series of materials Ce0. 3 ＋xZr0. 6-xY0.1O1. 95 were prepared by co-precipitation routine and the property of these materials was studied by means of oxygen storage capacity, temperature programming reduction, X-ray diffraction, transmission electronic microscope, and X-ray photoelectron spectroscopy. The results indicate that the materials with a low Ce/Zr molar ratio possess higher cerium atom utilization ratio, reducibility and thermal stability than the materials with a high Ce/Zr ratio, and Ce0.35Zr0.55Y0.1O1.95 possesses the best properties.
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