中文摘要：

以六水合硝酸铈、葡萄糖、丙烯酰胺为原料,氨水为沉淀剂,采用水热法制备了CeO2,并利用正交试验考察了水热反应温度、反应时间及热处理时的焙烧温度对CeO2比表面积大小和形貌的影响。运用SEM、XRD和BET等手段对样品进行表征。结果表明,水热反应温度是决定CeO2比表面积大小的最重要因素,并且形貌越接近球形,其比表面积越大。最佳的制备条件是焙烧温度400℃、水热反应温度180℃、反应时间48h。

英文摘要：

CeO2 was prepared by novel hydrothermal method with glucose, acrylamide and cerium nitrate as raw material, and ammonia as precipitant. Effects of reaction time and temperature of hydrothermal reaction, and calcination temperature on specific surface area and morphology of CeO2 were analyzed. The products were characterized by XRD, SEM and BET. The results show that temperature of hydrothermal reaction is the most important factor determining specific surface area. The closer to sphere shape is, the larger its specific surface area is. The optimum preparation conditions include calcination temperature of 400℃, hydrothermal reaction temperature of 180℃, and reaction time of 48 h.