| 新型铂前驱体对汽车尾气净化催化剂活性的影响 |
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| 引用本文： | 张爱敏,刘奎,杨冬霞,赵云昆,卢军,顾永万,刘沁曦. 新型铂前驱体对汽车尾气净化催化剂活性的影响[J]. 贵金属, 2003, 24(3): 17-21 |
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| 作者姓名： | 张爱敏 刘奎 杨冬霞 赵云昆 卢军 顾永万 刘沁曦 |
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| 作者单位： | 昆明贵金属研究所,云南,昆明,650221 |
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| 基金项目： | 国家高技术研究发展计划 (863计划 )资助项目 (2 0 0 2AA3 2 10 60 )，云南省自然科学基金重点项目 (2 0 0 2C0 0 112 ) |
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| 摘 要： | 贵金属前驱体与贵金属在载体上的分散性和稳定性有密切的关系，直接影响催化剂的催化活性和耐久性。作者筛选出一种不含氯的铂化合物，并作为铂的前驱体制成催化剂，经模拟配气评价，分析了此催化剂在热老化前后对NOx、HC和CO三种气体的催化转化效率和起活温度，并和以H2PtCl6为前驱体制成的催化剂进行了对照。结果表明，这种筛选出来的铂化合物完全可以取代H2PtCl6作为一种新型的铂前驱体。
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| 关 键 词： | 汽车尾气净化催化剂 铂化合物 前驱体 催化活性 催化化学 |
| 文章编号： | 1004-0676(2003)03-0017-05 |
| 修稿时间： | 2002-11-08 |
The Effect of the New Platinum Precursor on the Activity of Automotive Emission Purification Catalyst |
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| Zhang Ai-Min,Liu Kui,Yang Dong-Xia,Zhao Yun-Kun,Lu Jun,Gu Yong-Wan,Liu Qin-Xi. The Effect of the New Platinum Precursor on the Activity of Automotive Emission Purification Catalyst[J]. Precious Metals, 2003, 24(3): 17-21 |
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| Authors: | Zhang Ai-Min Liu Kui Yang Dong-Xia Zhao Yun-Kun Lu Jun Gu Yong-Wan Liu Qin-Xi |
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| Abstract: | Noble metal precursors, which are connected with the PM dispersion and stability of catalyst, have directly effect on the catalytic activity and durability of catalyst. A chlorine-free platinum compound(X) was chosen and used as a platinum precursor to produce the catalysts before or after heat aging, the catalytic conversion efficiencies and the light-off temperature for NO_x, HC and CO were evaluated by simulating vehicle emission gases method, and the results were contrasted with those of the catalysts being produced by the H_2PtCl_6 precursor. It is claimed that the chosen platinum compound can substitute for H_2PtCl_6 as a new precursor. |
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| Keywords: | catalysis chemistry catalyst platinum complex precursor catalytic activity evaluation |
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