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	Catalytic studies on the mixed ceria-zirconia doped La/sup 3+/, Pr/sup 3+/ or Mn/sub 4+/
	Wen, M.F. ; Yang, D. ; Chen, J. ; Song, C.L. ; Gu, Y.W.
	2010-05-10 ; 2010-05-10
关键词	Experimental/ catalysis catalysts cerium compounds oxidation reduction (chemical) surface composition thermal stability X-ray diffractometers zirconium compounds/ mixed ceria-zirconia three way catalyst XRD thermal stability low-temperature redox catalytic activity La:CeO/sub 2/-ZrO/sub 3/ Pr:CeO/sub 2/-ZrO/sub 3/ Mn:CeO/sub 2/-ZrO/sub 3// A8265J Heterogeneous catalysis at surfaces and other surface reactions A8230 Specific chemical reactions reaction mechanisms/ La:CeO2ZrO3/ss CeO2ZrO3/ss ZrO3/ss Ce/ss La/ss O2/ss O3/ss Zr/ss O/ss La/el CeO2ZrO3/dop ZrO3/dop Ce/dop O2/dop O3/dop Zr/dop O/dop Pr:CeO2ZrO3/ss CeO2ZrO3/ss ZrO3/ss Ce/ss O2/ss O3/ss Pr/ss Zr/ss O/ss Pr/el CeO2ZrO3/dop ZrO3/dop Ce/dop O2/dop O3/dop Zr/dop O/dop Mn:CeO2ZrO3/ss CeO2ZrO3/ss ZrO3/ss Ce/ss Mn/ss O2/ss O3/ss Zr/ss O/ss Mn/el CeO2ZrO3/dop ZrO3/dop Ce/dop O2/dop O3/dop Zr/dop O/dop
中文摘要	A number of experiments were carried out with different Ce-Zr oxides doped La/sup 3+/, Pr/sup 3+/ or Mn/sup 4+/ in order to improve their performance as a promoter for three way catalyst(TWC). The XRD results showed that the thermal stability of Ce-Zr oxide doped lanthanum or praseodymium was improved, especially at high temperature. H/sub 2/-TPR test detected the low-temperature redox behavior of Ce-Zr oxide was promoted strongly attributed to the MnO/sub 2/, with calcined temperature increasing, the reduction peaks were moved to high temperature for Ce-Zr oxide doped La/sub 3+ / and Pr/sub 3+/. The catalytic activity of Ce-Zr oxide doped Mn/sub 4+/ was also enhanced, the light-off temperature was lower 10 K than Ce-Zr oxide; the conversions of CO and THC were higher 3-4% than Ce-Zr oxide.
语种	英语 ; 英语
出版者	Balaban Publishers; Scitec Publications ; Switzerland
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/22745]
专题	清华大学
推荐引用方式 GB/T 7714	Wen, M.F.,Yang, D.,Chen, J.,et al. Catalytic studies on the mixed ceria-zirconia doped La/sup 3+/, Pr/sup 3+/ or Mn/sub 4+/[J],2010, 2010.
APA	Wen, M.F.,Yang, D.,Chen, J.,Song, C.L.,&Gu, Y.W..(2010).Catalytic studies on the mixed ceria-zirconia doped La/sup 3+/, Pr/sup 3+/ or Mn/sub 4+/..
MLA	Wen, M.F.,et al."Catalytic studies on the mixed ceria-zirconia doped La/sup 3+/, Pr/sup 3+/ or Mn/sub 4+/".(2010).

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