As a new kind of environment-friendly ca talyst, nanometer catalysts have a great potentially application in the purification of exhaust gases, and they are of great significance to improve the air quality. And nanometer catalysts have many advantages, such as high selectivity, high catalytic activity and ability of anti-poison. Therefore, catalytic efficiency of nanometer automotive catalysts are much better than that of traditional catalysts. The research achievement about nanometer catalysts in the purification of automotive gas were summarized, and the analysis in components structure and property of the new-type nanometer catalyst were emphasized. Finally, the key scientific problems of nanometer automotive catalysts were further analyzed.%纳米级催化剂作为新一代高效环保催化剂,在汽车尾气净化处理方面有着优良的应用前景,对改善大气环境具有重要意义.并且纳米级催化剂具有高选择性、高催化活性及抗中毒性等优点,因此纳米级汽车尾气催化剂的净化催化效率远高于传统催化剂. 在综述纳米级催化剂在汽车尾气净化催化领域研究的基础上,侧重分析新型的纳米级催化剂中几种组分制成纳米级后其结构和性能的变化,并对纳米级汽车尾气催化剂的关键研究问题进行分析和讨论.
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