第 36 卷第 3 期 Vol. 36 No. 3 2006 年 6 月 Jun 2006

所属栏目：功能材料 共沉淀法制备CeO_2-ZrO_2纳米固溶体的研究

田久英; 卢菊生; 沐来龙; 杜百祥(徐州师范大学化学系; 江苏徐州)

摘　要：研究了反应温度、沉淀剂浓度及分散剂等因素对共沉淀法制备CeO2-ZrO2固溶体的影响,并利用TEM、XRD等方法对固溶体进行表征。结果表明:在反应温度为18～25℃,氨水浓度为5～6mol/L,分散剂选用聚丙烯酰胺的工艺条件下可制备出平均粒径为10nm左右,粒度分布均匀的纳米CeO2-ZrO2固溶体。

关键词：共沉淀法; CeO_2-ZrO_2固溶体; 纳米粉体

中图分类号：TQ133.3　　文献标识码：A　　文章编号：1009-9212(2006)03-0046-03

CeO_2-ZrO_2 Nano Solid Solution Prepared by Co-precipitation Method

TIAN Jiu-ying; LU Ju-sheng; MU Lai-long; DU Bai-xiang（Department of Chemistry; Xuzhou Normal University; Xuzhou 221116; China）

Abstract：The influences of reaction temperature,content of precipitation agent and dispersing agent on CeO2-ZrO2 solid solution prepared by co-precipitation method was studied,and the solid solution was characterized by TEM and XRD.The results indicated that the even distribution of CeO2-ZrO2 nano-solid solution with particle size about 10 nm could be obtained under the following process conditions such as temperature of reaction 18~25℃,5~6 mol/L NH3·H2O and dispersing agent polyacrylamide.

Key words：Co-precipitation method; ceria-zirconia solid solution; nanopowder

基金项目：徐州师范大学自然科学基金资助项目(04XLA04)

收稿日期：2005-09-15

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