| 新一代三效催化剂的关键材料─CexZr1-xO2固溶体研究进展 |
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| 引用本文： | 胡玉才,冯长根,王丽琼,王大祥,张兴燕,李云.新一代三效催化剂的关键材料─CexZr1-xO2固溶体研究进展[J].环境科学与技术,2002,25(4):42-44. |
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| 作者姓名： | 胡玉才 冯长根 王丽琼 王大祥 张兴燕 李云 |
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| 作者单位： | 北京理工大学机电工程学院,北京,100081 |
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| 摘 要： | 汽车尾气排放法规的日趋严格迫切要求开发高性能的三效催化剂.传统三效催化剂中的CeO2高温下易发生烧结而降低或失去储氧能力.而加入锆所形成的CexZr1-xO2固溶体具有良好的抗高温老化性能、低温还原性能和较高的储氧能力,可以作为新一代三效催化剂的关键材料.
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| 关 键 词： | CexZr1-xO2固溶体 储氧能力 三效催化剂 材料 |
| 文章编号： | 1003-6504(2002)04-0042-04 |
| 修稿时间： | 2001年12月20 |
Recent Advances in Development of New Generation of Three-way Catalysts: Use of CexZr1-xO2 Solid Solution as Key Material |
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| HU Yu cai,FENG Chang gen,WANG Li qiong,WANG Da xing,ZHANG Xing yan,LI Yun.Recent Advances in Development of New Generation of Three-way Catalysts: Use of CexZr1-xO2 Solid Solution as Key Material[J].Environmental Science and Technology,2002,25(4):42-44. |
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| Authors: | HU Yu cai FENG Chang gen WANG Li qiong WANG Da xing ZHANG Xing yan LI Yun |
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| Abstract: | Traditional automotive exhaust catalysts are reviewed with respect to pure ceria (CeO 2). This paper reports on the endeavors in improvement of heat stabilization of CeO 2 in recent years, i.e., formation of Ce xZr 1 x O 2 solid solution by introducing Zr 4+ into CeO 2 lattice. Due the high thermo resistance, high reduction efficiency at low temperature and good oxygen storage capacity (OSC), Ce xZr 1 x O 2 solid solution is hopefully becoming a key material for new generation of three way catalysts (TWC). |
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| Keywords: | Ce xZr 1 x O 2 solid solution oxygen storage capacity (OSC) three way catalysts (TWC) |
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