气候变化领域集成服务门户(CCPortal): Real-time infrared detection of cyanide flip on silver-alumina NO x removal catalyst

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DOI	10.1126/science.1169041
	Real-time infrared detection of cyanide flip on silver-alumina NO x removal catalyst
	Thibault-Starzyk F.; Seguin E.; Thomas S.; Daturi M.; Arnolds H.; King D.A.
发表日期	2009
ISSN	0036-8075
起始页码	1048
结束页码	1051
卷号	324 期号:5930
英文摘要	Spectroscopic studies of the mechanistic steps that occur on supported precious metal catalysts used in industrial and automotive applications are hampered by a dearth of suitable experimental methods. We used femtosecond laser excitation followed by nanosecond time-resolved in situ Fourier-transform infrared spectroscopy to initiate a catalytic reaction on alumina-supported silver catalysts, which are of interest in minimizing nitrogen oxide emissions from fuel-efficient lean-burn engines. We found that the key intermediate step in the reaction between carbon monoxide and nitric oxide is the flip of a cyanide group from a silver nanoparticle to the alumina support (with a lifetime of 2 microseconds), which indicates the central role played by the interface between the metal particle and the oxide support.
英文关键词	aluminum oxide; carbon monoxide; cyanide; nanoparticle; nitric oxide; nitrogen oxide; silver; aluminum oxide; carbon monoxide; catalysis; detection method; emission control; FTIR spectroscopy; infrared imagery; nitrogen oxides; real time; silver; article; catalyst; excitation; exhaust gas; heating; infrared spectroscopy; nanoanalysis; priority journal; reaction analysis
语种	英语
来源期刊	Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/245723
作者单位	Laboratoire Catalyse et Spectrochimie, ENSICAEN-Université de Caen-CNRS, Boulevard Maréchal Juin, 14050 Caen Cedex, France; Surface Science Research Centre, Department of Chemistry, University of Liverpool, Oxford Street, Liverpool L69 3BX, United Kingdom; Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, United Kingdom
推荐引用方式 GB/T 7714	Thibault-Starzyk F.,Seguin E.,Thomas S.,et al. Real-time infrared detection of cyanide flip on silver-alumina NO x removal catalyst[J],2009,324(5930).
APA	Thibault-Starzyk F.,Seguin E.,Thomas S.,Daturi M.,Arnolds H.,&King D.A..(2009).Real-time infrared detection of cyanide flip on silver-alumina NO x removal catalyst.Science,324(5930).
MLA	Thibault-Starzyk F.,et al."Real-time infrared detection of cyanide flip on silver-alumina NO x removal catalyst".Science 324.5930(2009).