| 低温燃烧法制备La1-xCsxFeO3复合氧化物及其贫燃条件下对NO催化净化的活性与机理 |
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| 引用本文： | 王海燕,张国,李丽,张新,袁福龙,付宏刚.低温燃烧法制备La1-xCsxFeO3复合氧化物及其贫燃条件下对NO催化净化的活性与机理[J].黑龙江大学自然科学学报,2005,22(1):25-27. |
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| 作者姓名： | 王海燕 张国 李丽 张新 袁福龙 付宏刚 |
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| 作者单位： | 哈尔滨师范大学呼兰分院,化学系,黑龙江,哈尔滨,150500;黑龙江大学,化学化工与材料学院,黑龙江,哈尔滨,150080;黑龙江大学,化学化工与材料学院,黑龙江,哈尔滨,150080 |
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| 基金项目： | 国家自然科学基金资助项目(20271019) |
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| 摘 要： | 采用低温燃烧合成法制备了Cs掺杂的La1-xCsxFeO3系列复合钙钛矿氧化物.X射线衍射分析和IR结果表明x=0.0-0.6时都形成了钙钛矿结构.催化性能测试发现,x=0.5时催化活性最好,TPR分析证明其催化活性与高价铁离子的出现及氧空位有关.
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| 关 键 词： | La1-xCsxFeO3复合氧化物 掺杂 一氧化氮 低温燃烧合成法 |
| 文章编号： | 1001-7011(2005)01-0025-03 |
| 修稿时间： | 2004年6月20日 |
Preparation of La1-xCsxFeO3 complex oxides by low- temperature combustion sythesis and its catalytic activity and mechanism for purification of NO under lean -burn condition |
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| WANG Hai-yan,ZHANG Guo,LI Li,ZHANG Xin,YUAN Fu-long,FU Hong-Gang.Preparation of La1-xCsxFeO3 complex oxides by low- temperature combustion sythesis and its catalytic activity and mechanism for purification of NO under lean -burn condition[J].Journal of Natural Science of Heilongjiang University,2005,22(1):25-27. |
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| Authors: | WANG Hai-yan ZHANG Guo LI Li ZHANG Xin YUAN Fu-long FU Hong-Gang |
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| Institution: | WANG Hai-yan~ |
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| Abstract: | A series materials of complex oxides La_(1-x)Cs_xFeO_3 are synthesized by low-temperature combustion sythesis method. XRD and IR result shows that the crystal structure of La_(1-x)Cs_xFeO_3(x=0.0-0.6) is perovskite-type oxide. Catalytic activity test indicate that the catalyst has a maximum at x=0.5. Combined with TPR curves, it can be deduced that catalytic activity of the perovskite-type oxides is closely related to the higher valent irons and oxygen vacancies. |
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| Keywords: | La_(1-x)Cs_xFeO_3 perovskite mixed oxides doping NO low-temperature combustion sythesis(LCS) |
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