The Study of Cerium Oxide Nanostructure Catalytic Materials by Templated Assemble

zhang Jiuxing, Du Yucheng, Sun Libai, He Hong
(The key Laboratory of Advanced Functional Material of Education of Beijing University of Technology Beijing 100022)

Abstract In this paper, the nanostructure cerium-oxide-based surfactant mesophases templated by template agent assemblies were synthesized by homogeneous precipitation method. Nanostructure cerium oxide has been obtained, when SDS, cerium nitrate, urea were mixed at the molar ratio of 0.02mol, 0.01mol, 0.44mol and have been reacted 72h. The cerium oxide was characterized by a wider shoulder peak of CeO2 and Ce2O3, and the character with the mean particle size of 5～10nm, pore size 3～5nm, specific surface area of as large as 181.45m2/g. As catalyst, the sample has better absorption property by absorbed of nitrogen gas .
Key words Template assemblies, Cerium oxide, Nanostructure, Catalyst materials

　

模板组装纳米结构氧化铈催化材料

张久兴 杜玉成 孙立柏 何洪
(北京工业大学新型功能材料教育部重点实验室 北京 100022)

摘要 介绍了模板剂结构诱导下均相沉淀法组装纳米结构氧化铈工艺方法。0.02mol SDS、0.01mol Ce(NO3)·6H2O、0.44mol (NH2)2CO，反应72h可获得肩峰较宽、具有CeO2，Ce2O3固溶峰的、粒径在5～10nm、孔径在3～5nm、比表面积达181.45m2/g的纳米结构氧化铈。N2吸附分析表明样品具有良好的吸附催化活性。
关键词 模板组装 氧化铈 纳米结构 催化材料

张久兴 男，41岁，教授，主要从事稀土材料加工领域的科研教学工作。

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