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Effect of CeO2-ZrO2 composite oxide on performance of catalyst with metal monolith substrate
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
2002-07-01
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
关键词[WOS]OXYGEN STORAGE CAPACITY ; 2-STROKE MOTORCYCLE ; HC EMISSIONS ; REMOVING CO ; CONVERTER
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.
语种英语
WOS记录号WOS:000177387000014
引用统计
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/139188
专题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
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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.
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