| 新型稀土储氧材料的性能及在三效催化剂中的应用 |
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| 引用本文： | 赵明,龚茂初,蔡黎,张怀红,张丽娟,毛小波,陈耀强.新型稀土储氧材料的性能及在三效催化剂中的应用[J].贵金属,2006,27(2):18-21. |
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| 作者姓名： | 赵明 龚茂初 蔡黎 张怀红 张丽娟 毛小波 陈耀强 |
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| 作者单位： | 四川大学,化学学院催化材料研究所,四川,成都,610064 |
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| 基金项目： | 国家高技术研究发展计划(863计划)
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国家自然科学基金 |
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| 摘 要： | 采用共沉淀法制备了铈锆复合氧化物CeO2-ZrO2-Y2O3(CZ-Y)和CeO2-ZrO2(CZ),对其进行了BET、TPD和储氧量(OSC)的表征,并考察了这两种铈锆复合氧化物对Pt-Rh型三效催化剂性能的影响.结果表明,含CZ-Y的催化剂具有较好的低温活性和抗老化性能.
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| 关 键 词： | 金属材料 稀土储氧材料 CZ-Y CZ 三效催化剂 |
| 文章编号： | 1004-0676(2006)02-0018-04 |
| 收稿时间： | 2005-08-30 |
| 修稿时间： | 2005年8月30日 |
Performance of Advanced Rare Earth Oxygen Storage Materials and Application in Three-way Catalysts |
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| ZHAO Ming,GONG Maochu,CAI Li,ZHANG Huaihong,ZHANG Lijuan,MAO Xiaobo,CHEN Yaoqiang.Performance of Advanced Rare Earth Oxygen Storage Materials and Application in Three-way Catalysts[J].Precious Metals,2006,27(2):18-21. |
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| Authors: | ZHAO Ming GONG Maochu CAI Li ZHANG Huaihong ZHANG Lijuan MAO Xiaobo CHEN Yaoqiang |
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| Affiliation: | College of Chemistry, Sichuan University, Chengdu, Sichuan 610064, China |
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| Abstract: | CeO2-ZrO2-Y2O3(CZ-Y)and CeO2-ZrO2(CZ)composite oxides were prepared by coprecipitation technique,TPD,BET and oxygen storage capacity(OSC)investigations were carried out on samples.The influence of the composite oxides on the catalytic activity of Pt-Rh three-way catalysts was investigated.The results showed that the catalysts containing CZ-Y soild solutions have high activity and high thermostability compared with that containing CZ solid solution. |
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| Keywords: | Metal materials Rare earth oxygen storage materials CZ-Y CZ TWC |
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