| 铈锆氧化物固溶体的制备、表征及三效催化性能 |
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| 引用本文： | 胡玉才.铈锆氧化物固溶体的制备、表征及三效催化性能[J].材料科学与工艺,2005,13(1):34-37. |
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| 作者姓名： | 胡玉才 |
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| 作者单位： | 烟台师范学院,化学与材料科学学院,山东,烟台,264025 |
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| 基金项目： | 烟台师范学院校科研和教改项目 |
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| 摘 要： | 采用共沉淀技术制备了Ce0.6Zr0.4O2固溶体,并对其进行了XRD、Raman光谱和SEM表征.将其用于单钯三效催化剂的制备,考察了Ce06Zr0.4O2对三效催化剂性能的影响.结果表明:Ce0.6Zr0.4O2具有和CeO2相似的立方结构,并具有较高的热稳定性;与含CeO2的三效催化剂相比,含Ce06Zr0.4O2的三效催化剂经高温老化后,仍具有较高的HC、CO、NO转化率和较低的起燃温度.
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| 关 键 词： | 铈锆氧化物固溶体 三效催化剂 制备 表征 |
| 文章编号： | 1005-0299(2005)01-0034-04 |
| 修稿时间： | 2004年6月18日 |
Preparation, characterization and three-way catalytic performance of ceria-zirconia solid solution |
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| HU Yu-cai.Preparation, characterization and three-way catalytic performance of ceria-zirconia solid solution[J].Materials Science and Technology,2005,13(1):34-37. |
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| Authors: | HU Yu-cai |
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| Abstract: | Ce0.6Zr0.4O2 solid solution was prepared by coprecipitation technique and characterized by XRD, Raman spectra and SEM measurements. Ce0.6Zr0.4O2 was used to prepare palladium-only three-way catalyst (TWC) and its influence on the performance of TWC was investigated. The results indicate that Ce0.6Zr0.4O2 has not only similar cubic structure with CeO2, but also higher thermostability. After being aged at high temperature , the TWC containing Ce0.6Zr0.4O2 still shows higher conversion of HC, CO and NO and lower light-off temperature compared with the TWC containing CeO2. |
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| Keywords: | ceria-zirconia solid solution three-way catalyst preparation characterization |
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