Influence of Au particle size on Au/CeO2 catalysts for CO oxidation

	Influence of Au particle size on Au/CeO2 catalysts for CO oxidation
	Tana; Wang, Fagen; Li, Huaju; Shen, Wenjie
刊名	catalysis today
	2011-10-25
卷号	175 期号:1 页码:541-545
关键词	Au/CeO2 Particle size Au-CeO2 interface CO oxidation
英文摘要	the au particle size dependence of co oxidation on au/ceo2 catalysts was extensively investigated. by keeping the size of ceo2 particle to be about 12 nm, the increasing size of au particle from 3.9 to 7.5 nm caused significant decrease in the intrinsic activity for co oxidation. comparative study on sodium cyanide leaching, which effectively removed the metallic gold particles but retained the cationic gold clusters in the matrix of ceria, revealed that the cationic gold species could catalyze co oxidation only at higher temperatures, confirming the major contribution of the metallic gold particles in the au/ceo2 system. therefore, it is evident that the au-ceo2 interface determined mainly by the size of au particle plays an essential role in achieving the high reactivity. (c) 2011 elsevier b.v. all rights reserved.
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]	water-gas shift ; gold catalysts ; hydrogen-production ; supported gold ; precipitation ; nanoparticles ; reactivity ; oxygen
收录类别	SCI
语种	英语
WOS记录号	WOS:000295735400076
公开日期	2015-11-17
内容类型	期刊论文
源URL	[http://159.226.238.44/handle/321008/142362]
专题	大连化学物理研究所_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, State Key Lab Catalysis, Dalian 116023, Peoples R China
推荐引用方式 GB/T 7714	Tana,Wang, Fagen,Li, Huaju,et al. Influence of Au particle size on Au/CeO2 catalysts for CO oxidation[J]. catalysis today,2011,175(1):541-545.
APA	Tana,Wang, Fagen,Li, Huaju,&Shen, Wenjie.(2011).Influence of Au particle size on Au/CeO2 catalysts for CO oxidation.catalysis today,175(1),541-545.
MLA	Tana,et al."Influence of Au particle size on Au/CeO2 catalysts for CO oxidation".catalysis today 175.1(2011):541-545.