Effect of CeO2-ZrO2 composite oxide on performance of catalyst with metal monolith substrate

	Effect of CeO2-ZrO2 composite oxide on performance of catalyst with metal monolith substrate
	Li, SL; Chen, GW; Sun, JL; Li, HQ
刊名	chinese journal of catalysis
	2002-07-01
卷号	23 期号:4 页码:341-344
关键词	platinum palladium rhodium ceria zirconia solid solution monolith catalyst motorcycle emission control
英文摘要	in this paper, the ceo2-zro2 composite oxide with different composition was prepared by dip-coating method. meanwhile, the crystalline phase structure, reduction performance, surface area and thermostability of the oxide were characterized by using xrd, h-2-tpr and bet. the results showed that the solid solution was formed in the ceo2-zro2 composite oxide, and ce0.6mzr0.4o2 was more easily to be reduced by h-2, compared with ce0.90zr0.10o2, the parameters of its crystal cells were not obviously changed, and the surface area was still as high as 11.8 m(2)/g when calcined at 1100 degreesc for 4 h. the catalytic activity of pt-pd-rh/ceo2-al2o3 and pt-pd-rh/ceo2-zro2-al2o3 was investigated by using simulating emission gas of 2-stroke motorcycle, and the results revealed that the calcined catalysts still have high activity. in the lean oxygen area, the pt-pd-rh/ce0.6zr0.4o2-al2o3 catalyst, which has superiority of activity for hydrocarbon oxidation, over other two catalysts, is a good catalyst with high thermostability.
WOS标题词	science & technology ; physical sciences ; technology
类目[WOS]	chemistry, applied ; chemistry, physical ; engineering, chemical
研究领域[WOS]	chemistry ; engineering
关键词[WOS]	oxygen storage capacity ; 2-stroke motorcycle ; hc emissions ; removing co ; converter
收录类别	SCI
语种	英语
WOS记录号	WOS:000177387000014
公开日期	2015-11-10
内容类型	期刊论文
源URL	[http://159.226.238.44/handle/321008/139188]
专题	大连化学物理研究所_中国科学院大连化学物理研究所
作者单位	Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Liaoning, Peoples R China
推荐引用方式 GB/T 7714	Li, SL,Chen, GW,Sun, JL,et al. Effect of CeO2-ZrO2 composite oxide on performance of catalyst with metal monolith substrate[J]. chinese journal of catalysis,2002,23(4):341-344.
APA	Li, SL,Chen, GW,Sun, JL,&Li, HQ.(2002).Effect of CeO2-ZrO2 composite oxide on performance of catalyst with metal monolith substrate.chinese journal of catalysis,23(4),341-344.
MLA	Li, SL,et al."Effect of CeO2-ZrO2 composite oxide on performance of catalyst with metal monolith substrate".chinese journal of catalysis 23.4(2002):341-344.