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题名: Effect of CeO2-ZrO2 composite oxide on performance of catalyst with metal monolith substrate
作者: Li, SL;  Chen, GW;  Sun, JL;  Li, HQ
关键词: platinum ;  palladium ;  rhodium ;  ceria ;  zirconia ;  solid solution ;  monolith catalyst ;  motorcycle ;  emission control
刊名: CHINESE JOURNAL OF CATALYSIS
发表日期: 2002-07-01
卷: 23, 期:4, 页:341-344
收录类别: SCI
文章类型: Article
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
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.
关键词[WOS]: OXYGEN STORAGE CAPACITY ;  2-STROKE MOTORCYCLE ;  HC EMISSIONS ;  REMOVING CO ;  CONVERTER
语种: 英语
WOS记录号: WOS:000177387000014
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/139188
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Liaoning, Peoples R China

Recommended Citation:
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.
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