| 吴韶亮,高晓,刘欣梅,阎子峰.固相反应-结构导向法合成铈锆固溶体[J].分子催化,2007,(4):338-343 |
| 固相反应-结构导向法合成铈锆固溶体 |
| Preparation of Ceria-zirconia Solid Solution by Solid-state Reaction - Surfactant Templating Coupling Method |
| 投稿时间：2006-08-17 修订日期：2006-09-28 |
| DOI： |
| 中文关键词: 铈锆固溶体,固相反应,比表面,晶体结构 |
| 英文关键词:Ceria-Zirconia solid solution,Solid-state reaction,Surface area,Crystal phase |
| 基金项目: |
| 吴韶亮 高晓 刘欣梅 阎子峰 |
中国石油大学(华东)
重质油加工国家重点实验室中石油催化重点实验室 山东东营257061 |
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| 中文摘要: |
| 为获得结构和性能优化的铈锆固溶体,将固相反应-结构导向法引入制备过程,分别考察了NaOH添加量、铈锆比、晶化温度、晶化时间和表面活性剂加量等因素对固溶体结构的影响.结果表明,采用固相反应-结构导向法可以得到比表面较大的四方相铈锆固溶体,但其热稳定性还有待于进一步改善.OH-/Zr是影响固溶体结构的主导因素,它不仅影响着比表面的大小,还控制着晶相转化过程. |
| 英文摘要: |
| The solid-state reaction coupled with surfactant directing method was firstly introduced into the synthesis of ceria-zirconia solid solution.The synthesis parameters,such as OH-/Zr ratio,Ce/Zr ratio, crystallization temperature and amount of surfactant et al.,were systematically investigated.The results showed that larger specific surface area of ceria zirconia solid solution with tetragonal phase could be exhibited by optimizing the synthesis parameters.Of pity is that the thermal stability should be improved.The ratio of OH-/Zr is the main factor to affect the structure of solid solution.It not only controls the surface area,but also decides the process of crystal phase transformation. |
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