采用柠檬酸做还原剂,硝酸盐做氧化剂,利用溶胶-凝胶低温燃烧合成工艺制备了纳米晶Ce0.8Y0.22O1.9固溶体.用TG/DTA、XRD、FTIR、Raman和TEM等检测手段研究了柠檬酸用量、前驱体溶液的pH值、氧化剂的用量等工艺参数对凝胶的形成、分解及产物特性的影响.结果表明,通过控制柠檬酸的用量、溶液的pH值,可以获得稳定的凝胶.改变氧化剂的用量,可以获得颗粒尺寸在5～40nm范围的超细粉体.Raman研究表明,随氧化剂含量的增加,氧空位浓度增大.
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