From mechanistic to kinetic analyses of ethanol steam reforming over Ir/CeO2 catalyst

	From mechanistic to kinetic analyses of ethanol steam reforming over Ir/CeO2 catalyst
	Wang, Fagen 1,2; Cai, Weijie 1,2; Descorme, Claude 1; Provendier, Helene 1; Shen, Wenjie 2; Mirodatos, Claude 1; Schuurman, Yves 1
刊名	international journal of hydrogen energy
	2014-10-22
卷号	39 期号:31 页码:18005-18015
关键词	Ethanol steam reforming Ir/CeO2 catalyst Kinetic analysis and modeling Mechanistic study
英文摘要	this work presents a kinetic analysis of ethanol steam reforming (esr) over a performing ir/ceo2 catalyst based on a bi-functional mechanism. a first conventional power-law based kinetic study was carried out by varying the main operating parameters (temperature, steam/ethanol molar ratio and partial pressure of products). a limited fit was achieved between the experimental data and the data calculated from this model based on a single type of site, demonstrating the need of a kinetic analysis integrating more closely the demonstrated bi-functional mechanism of the reaction. a kinetic model considering two distinct adsorption sites, on ceria support and on iridium particles, was then considered and only reactions involving the two types of sites, i.e. occurring at the ceria/metal interface, were used to build that model. a good agreement between the experimental data and the model was obtained, without systematic deviations. the central role of the metal-support interface was also consistent with the deactivation of this catalyst upon sintering, related to both changes in metal and support dispersion with time on stream. copyright (c) 2014, hydrogen energy publications, llc. published by elsevier ltd. all rights reserved.
WOS标题词	science & technology ; physical sciences ; technology
类目[WOS]	chemistry, physical ; electrochemistry ; energy & fuels
研究领域[WOS]	chemistry ; electrochemistry ; energy & fuels
关键词[WOS]	gas shift reaction ; hydrogen-production ; low-temperature ; h-2 ; ni
收录类别	SCI
语种	英语
WOS记录号	WOS:000343781100049
公开日期	2016-05-09
内容类型	期刊论文
源URL	[http://cas-ir.dicp.ac.cn/handle/321008/145434]
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	1.Univ Lyon 1, CNRS, Inst Rech Catalyse & Environm Lyon IRCELYON, UMR 5256, F-69626 Villeurbanne, France 2.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	Wang, Fagen,Cai, Weijie,Descorme, Claude,et al. From mechanistic to kinetic analyses of ethanol steam reforming over Ir/CeO2 catalyst[J]. international journal of hydrogen energy,2014,39(31):18005-18015.
APA	Wang, Fagen.,Cai, Weijie.,Descorme, Claude.,Provendier, Helene.,Shen, Wenjie.,...&Schuurman, Yves.(2014).From mechanistic to kinetic analyses of ethanol steam reforming over Ir/CeO2 catalyst.international journal of hydrogen energy,39(31),18005-18015.
MLA	Wang, Fagen,et al."From mechanistic to kinetic analyses of ethanol steam reforming over Ir/CeO2 catalyst".international journal of hydrogen energy 39.31(2014):18005-18015.