| 稀土钙钛矿型复合氧化物在汽车尾气催化转化器中的作用 |
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| 引用本文： | 白屏,黄荣光,卢军,贺小昆,桓源峰. 稀土钙钛矿型复合氧化物在汽车尾气催化转化器中的作用[J]. 贵金属, 2004, 25(1): 67-70 |
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| 作者姓名： | 白屏 黄荣光 卢军 贺小昆 桓源峰 |
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| 作者单位： | 昆明贵金属研究所,云南,昆明,650221;昆明贵金属研究所,云南,昆明,650221;昆明贵金属研究所,云南,昆明,650221;昆明贵金属研究所,云南,昆明,650221;昆明贵金属研究所,云南,昆明,650221 |
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| 基金项目： | 云南省国际合作计划项目(2001-GH-03) |
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| 摘 要： | 介绍了汽车尾气催化转化器的组成、工作原理和类型。根据国内外有关报道，综述了稀土钙钛矿型复合氧化物在汽车尾气催化转化器中的作用：既改善了储氧功能，又增加了催化活性和催化剂中涂层料的热稳定性等。作者从技术和理论的角度说明稀土元素在汽车尾气催化转化器中作用；尤其在催化净化器中，CeO2在助催化和稳定化方面赶到了十分明显的作用。随着汽车工业的快速发展，稀土氧化物在汽车尾气催化转化器中的运用前景看好。
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| 关 键 词： | 环境工程学 稀土钙钛矿 尾气净化 |
| 文章编号： | 1004-0676(2004)01-0067-04 |
| 修稿时间： | 2003-03-05 |
Effects of Rare Earth Perovskite Composite Oxides on Purifying Auto Emission Catalyst |
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| BAI Ping,HUANG Rongguang,LU Jun,HE Xiaokun,HUAN Yuanfeng. Effects of Rare Earth Perovskite Composite Oxides on Purifying Auto Emission Catalyst[J]. Precious Metals, 2004, 25(1): 67-70 |
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| Authors: | BAI Ping HUANG Rongguang LU Jun HE Xiaokun HUAN Yuanfeng |
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| Abstract: | The composition, working principle and types of purifying auto emission catalyst was presented. The effects of rare earth perovskite composite oxides on purifying auto emission catalyst were summarized according to the relevant reports at home and abroad, which include improving the store function of oxygen, increasing catalytic activity and heat stability of specific surface layer and so on. The effects of rare earth on purifying auto emission was illustrated from technology and theory. Especially in catalytic converter, CeO2 has its tangible result in both promotion and stability. With rapid growth of automobile industry, a good prospect of application of rare earth oxides in auto emission catalyst is expected. |
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| Keywords: | Environment engineering Rare earth perovskite Purifying auto emission |
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