以氨水为沉淀剂反应条件对储氧材料性能的影响  

Effect of Preparation Condition on Properties of Ceria-based Oxygen Storage Materials Precipitated by Ammonia

作　　者：庞秀江[1] 陈利[2] 陈耀强[3] 

机构地区：[1]青岛科技大学化学与分子工程学院,山东青岛266042 [2]青岛科技大学高分子材料科学与工程学院,山东青岛266042 [3]四川大学化学学院,四川成都610041

出　　处：《山东化工》2007年第9期1-3,共3页Shandong Chemical Industry

基　　金：国家自然科学基金(20273043);国家自然科学重点基金(20333030)资助项目

摘　　要：以氨水为沉淀剂制备一系列储氧材料,表征了其物相组成,同时对其储氧性能和比表面积进行了测定,探讨了反应条件对储氧材料性能的影响。结果表明,前驱体到最终CeO2-ZrO2固溶体的形成是属于同晶相转化;pH值、陈化温度、反应物浓度对材料的储氧性能、比表面积、抗老化性能有着不同程度的影响。Oxygen storage materials were precipitated by ammonia,and its' phase,oxygen storage capacity,surface area and so on were determined.The effect of reaction conditions on properties of oxygen storage material were also investigated.Results showed that crystal face didn't change during the transformation from precursor to CeO2-ZrO2.pH value,matured temperature and concentration of reactant had different influences on oxygen storage capacity,surface area and thermal stability of oxygen storage materials.

关 键 词：氨水 制备条件 储氧材料 

分 类 号：O614.33[理学—无机化学]