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中文摘要：
CeO2储氧材料是汽车尾气净化催化剂中的重要载体，但因纯Ce02的热稳定性差，不适合在高温条件下使用，已被具有更高热稳定性的CeO2-ZrO2（CZ）材料所取代．随着汽车尾气排放标准的提高，对催化剂的要求越来越苛刻，对载体的织构性能、抗老化性能及低温氧化还原性提出了更高的要求．
英文摘要：
CeO2-based oxygen materials were prepared with co-precipitation method and characterized via Brunauer-Emmet Teller（BET） method, X-ray diffraction（XRD） and temperature-programmed reduction（H2-TPR）. This paper revealed that three CeO2-based oxygen storage materials are all forming homogeneous solid solution. Among the samples, CeO2-ZrO2-Al2O3（CZA） has the best textural properties and excellent thermal stability. The specific surface area and pore volume of aged CZA are 90 m2/g and 0.29 mL/g. We proposed a viewpoint： Al3＋ might insert among the interspace of fluorite structure or highly dispersal in solid solutions.
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