| Cu对Cu－Mn－Ce－O和Cu－Mn－Ce－Pd－O催化剂三效性能的影响 |
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| 引用本文： | 王幸宜,卢冠忠,任建德,吴善良,汪仁.Cu对Cu－Mn－Ce－O和Cu－Mn－Ce－Pd－O催化剂三效性能的影响[J].燃料化学学报,1995(2). |
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| 作者姓名： | 王幸宜 卢冠忠 任建德 吴善良 汪仁 |
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| 作者单位： | 华东理工大学工业催化研究所 |
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| 摘 要： | 利用火焰脉冲－微反装置考察了Ｃｕ－Ｍｎ－Ｃｅ－Ｏ和Ｃｕ－Ｍｎ－Ｃｅ－Ｐｄ－Ｏ两类催化剂的三效活性。结果表明Ｃｕ的加入有利于Ｃｕ－Ｍｎ－Ｃｅ－Ｏ的ＮＯｘ和ＣＯ的转化，而不利于Ｃｕ－Ｍｎ－Ｃｅ－ｐｄ－Ｏ的ＮＯｘ和ＨＣ的转化。ＸＲＤ分析结果表明在Ｃｕ－Ｍｎ－Ｃｅ－Ｏ中加入Ｐｄ，原来的ＣｕＭｎ＿２Ｏ＿３消失，生成新相ＭｎＡｌ＿２Ｏ＿４；ＴＰＲ分析结果表明Ｃｕ使Ｍｎ－Ｃｅ－Ｏ样品表面氧量增加，表面易于还原，而使Ｍｎ－Ｃｅ－ｐｄ－Ｏ样品表面难于还原。实验结果还表明Ｍｎ－Ｃｅ－ｐｄ－Ｏ催化剂的三效性能远远优于Ｃｕ－Ｍｎ－Ｃｅ－Ｏ催化剂。
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| 关 键 词： | 氧化铜，氧化铈，氧化锰，Pd催化剂 |
EFFECT OF Cu ON THE THREE-WAY PERFORMANCE FOR THE CATALYSTS OF Cu-Mn-Ce-O AND Cu-Mn-Ce-Pd-O |
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| Wang Xingyi, Lu Guangzhong, Ren Jiande, Wu Shanliang ,Wang Ren.EFFECT OF Cu ON THE THREE-WAY PERFORMANCE FOR THE CATALYSTS OF Cu-Mn-Ce-O AND Cu-Mn-Ce-Pd-O[J].Journal of Fuel Chemistry and Technology,1995(2). |
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| Authors: | Wang Xingyi Lu Guangzhong Ren Jiande Wu Shanliang Wang Ren |
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| Abstract: | The three-way performance of Cu-Mn-Ce-O and Cu-Mn-Ce-Pd-Ohave been examined in a pulse-flame-micro reactor.The xperimental results show thatthe addition of Cu into the Mn-Ce-O is favorable to the activities of NOx and CO conver-sion , and the addition of Cu into Mn-Ce-Pd-O inhibits the conversion of NOx and HC.XRD result showed that the addition of Pd into Cu-Mn-Ce-O causes CuMn_2O_4 phase todisappear and MnAl_2O_4 phase to form. TPR indicated that Cu may increase the surface oxy-gen content for the catalyst Mn-Ce-O,thus the surface can be reduced easily , and whilethe catalyst Mn-Ce-pd-O is not so. The activity of Mn-Ce-pd-O is found to be muchhigher than that of Cu-Mn-Ce-O. |
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| Keywords: | cupper oxide cerium oxide manganese oxide palladium catalyst |
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