文献类型：期刊文献

中文题名：Cu对Cu－Mn－Ce－O和Cu－Mn－Ce－Pd－O催化剂三效性能的影响

英文题名：EFFECT OF Cu ON THE THREE-WAY PERFORMANCE FOR THE CATALYSTS OF Cu-Mn-Ce-O AND Cu-Mn-Ce-Pd-O

作者：王幸宜[1];卢冠忠[1];任建德[1];吴善良[1];汪仁[1]

机构：[1]华东理工大学工业催化研究所

年份：1995

卷号：23

期号：2

起止页码：156

中文期刊名：燃料化学学报

外文期刊名：Journal of Fuel Chemistry and Technology

收录：CSTPCD;;Scopus;北大核心:【北大核心1992】；CSCD:【CSCD2011_2012】；

语种：中文

中文关键词：氧化酮;氧化铈;氧化锰;铜;钯催化剂;性能

外文关键词：cupper oxide, cerium oxide, manganese oxide, palladium catalyst

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。
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.