Structures and Catalytic Performance of Highly Dispersed Cu-Based Catalysts Supported on Modified Mesoporous Al2O3

	Structures and Catalytic Performance of Highly Dispersed Cu-Based Catalysts Supported on Modified Mesoporous Al2O3
	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)
刊名	CHINESE JOURNAL OF INORGANIC CHEMISTRY
	2010
卷号	26 期号:2 页码:#REF!
关键词	copper oxides CO oxidation Al2O3 modification EXAFS
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
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.
英文摘要	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.
学科主题	Chemistry
类目[WOS]	Chemistry, Inorganic & Nuclear
收录类别	SCI
WOS记录号	WOS:000274766300007
公开日期	2016-05-03
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/227036]
专题	高能物理研究所_多学科研究中心
推荐引用方式 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!.