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Structures and Catalytic Performance of Highly Dispersed Cu-Based Catalysts Supported on Modified Mesoporous Al2O3
其他题名改性介孑L Al2O3负载的高分散铜基催化剂的结构与催化性能
Yu, YF; Zou, ZQ; Meng, M; Xie, YN; Hu, TD; Zhang, J; Xie YN(谢亚宁); Hu TD(胡天斗); Zhang J(张静)
2010
发表期刊CHINESE JOURNAL OF INORGANIC CHEMISTRY
卷号26期号:2页码:#REF!
通讯作者Meng, M (reprint author), Tianjin Univ, Sch Chem Engn & Technol, Tianjin Key Lab Appl Catalysis Sci & Technol, Tianjin 300072, Peoples R China.
摘要The Cu-based catalysts Supported on mesoporous gamma-Al2O3 modified by LaCeZr or YCeZr were prepared by impregnation. The structures of the catalysts were carefully characterized by XRD, BET, XAFS, XPS and H-2-TPR techniques. The state of copper species and their reducibility were investigated and correlated with the CO oxidation performance of the catalysts. N-2 adsorption and desorption isotherms reveal that the catalysts possess high specific surface areas and uniform pore size distributions in mesoporous range. The XRD results indicate that after calcination at 800 degrees C the copper species supported on pure gamma-Al2O3 without modification exist as CuAl2O4 spinel, while the EXAFS results show that the copper species supported on gamma-Al2O3 modified by LaCeZr or YCeZr exist as highly dispersed CuO crystallites, which facilitates the CO oxidation. H-2-TPR results show that for the same series of the catalysts the reduction peaks Of CuO species shift to higher temperatures with the calcination temperature increasing, implying the decrease of the mobility of lattice oxygen, and resulting in the decrease of oxidation activity. The copper catalyst supported on gamma-Al2O3 modified by LaCeZr exhibits strong sulfur and water-resistance performance after calcination at 650 degrees C.
文章类型Article
关键词copper oxides CO oxidation Al2O3 modification EXAFS
学科领域Chemistry
收录类别SCI
WOS类目Chemistry, Inorganic & Nuclear
WOS记录号WOS:000274766300007
引用统计
被引频次:5[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/227036
专题多学科研究中心
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GB/T 7714
Yu, YF,Zou, ZQ,Meng, M,et al. Structures and Catalytic Performance of Highly Dispersed Cu-Based Catalysts Supported on Modified Mesoporous Al2O3[J]. CHINESE JOURNAL OF INORGANIC CHEMISTRY,2010,26(2):#REF!.
APA Yu, YF.,Zou, ZQ.,Meng, M.,Xie, YN.,Hu, TD.,...&张静.(2010).Structures and Catalytic Performance of Highly Dispersed Cu-Based Catalysts Supported on Modified Mesoporous Al2O3.CHINESE JOURNAL OF INORGANIC CHEMISTRY,26(2),#REF!.
MLA Yu, YF,et al."Structures and Catalytic Performance of Highly Dispersed Cu-Based Catalysts Supported on Modified Mesoporous Al2O3".CHINESE JOURNAL OF INORGANIC CHEMISTRY 26.2(2010):#REF!.
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