| 乙醇燃料车尾气净化催化剂研究 |
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| 引用本文： | 王伟,涂学炎,张世鸿.乙醇燃料车尾气净化催化剂研究[J].云南大学学报(自然科学版),2004,26(2):159-161,167. |
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| 作者姓名： | 王伟 涂学炎 张世鸿 |
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| 作者单位： | 云南大学,化学与材料工程学院,云南,昆明,650091 |
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| 摘 要： | 制备了一种具有钙态矿结构的Ag修饰的La0.6Sr0.4MnO3催化剂,实验表明这种催化剂对低浓度乙醇完全氧化的催化活性高于负载型贵金属催化剂,O2-TPD谱表明,Ag+对La0.6Sr0.4MnO3表面的修饰可以增加催化剂表面O22-/O-物种的量,从而有利于对乙醇的完全催化氧化.
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| 关 键 词： | 完全催化氧化 废气 乙醇 催化剂 |
| 文章编号： | 0258-7971(2004)02-0159-03 |
Study of catalysts for complete oxidation of alcohol fueled car exhausts |
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| WANG Wei,TU Xue-yan,ZHANG Shi-hong.Study of catalysts for complete oxidation of alcohol fueled car exhausts[J].Journal of Yunnan University(Natural Sciences),2004,26(2):159-161,167. |
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| Authors: | WANG Wei TU Xue-yan ZHANG Shi-hong |
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| Institution: | The Facuilty of Chemical and Materials Engineering, Yunnan University, Kunming 650091, China |
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| Abstract: | A highly active Ag-modified La_(0.6)Sr_(0.4)MnO_3 catalyst with the perovskite-type structure has been designed and prepared.It is observed experimentally that this catalyst exhibits the activity significantly higher than that of supported precious metal catalysts.O_2-TPD shows that modification of Ag~+ to the surface of La_(0.6)Sr_(0.4)MnO_3 catalyst increases the relative content of the surface O~(2-)_2/O~- species on surface,which are highly reactive toward alcohols. |
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| Keywords: | complete catalysts oxidation exhausts alcohol catalysts |
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