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题名: Hydrogen production from ethanol steam reforming over Ir/CeO(2) catalysts: Enhanced stability by PrO(x) promotion
作者: Wang, Fagen1, 2;  Cai, Weijie1;  Provendier, Helene2;  Schuurman, Yves2;  Descorme, Claude2;  Mirodatos, Claude2;  Shen, Wenjie1
关键词: Hydrogen ;  Ethanol ;  Steam reforming ;  Ir/CeO(2) catalyst ;  PrO(x)-doping ;  Stability
刊名: INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
发表日期: 2011-10-01
DOI: 10.1016/j.ijhydene.2011.07.091
卷: 36, 期:21, 页:13566-13574
收录类别: SCI
文章类型: Article
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
英文摘要: We studied ethanol steam reforming over Ir/Ce(0.9)Pr(0.1)O(2) and Ir/CeO(2) catalysts comparatively with respect to activity and stability. We found that PrO(x)-doping have significantly promoted the oxygen storage capacity and thermal stability of the catalysts by incorporation into the ceria lattice. Ethanol was readily converted to hydrogen, methane and carbon oxides at 773 K over the Ir/Ce(0.9)Pr(0.1)O(2) catalyst, and this is 100 K lower than that found for the Ir/CeO(2) catalyst. Moreover, the PrO(x)-doped catalyst was stable toward ethanol steam reforming at 923 K for 300 h without an apparent variation in ethanol conversion and product distribution. However, the severe aggregation of ceria particles and heavy coke deposition were observed on the Ir/CeO(2) catalyst, resulting in remarkable deactivation under the same reaction conditions. Copyright (C) 2011, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
关键词[WOS]: OXYGEN STORAGE CAPACITY ;  SOLID-SOLUTIONS ;  MIXED OXIDES ;  BIO-ETHANOL ;  CERIA ;  CE ;  OXIDATION ;  EFFICIENT ;  SUPPORTS ;  SURFACE
语种: 英语
WOS记录号: WOS:000296208800025
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/142712
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
2.Univ Lyon 1, Inst Rech Catalyse & Environm Lyon, IRCELYON, CNRS,UMR 5256, F-69626 Villeurbanne, France

Recommended Citation:
Wang, Fagen,Cai, Weijie,Provendier, Helene,et al. Hydrogen production from ethanol steam reforming over Ir/CeO(2) catalysts: Enhanced stability by PrO(x) promotion[J]. INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,2011,36(21):13566-13574.
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