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题名: Hydrogen production from methane decomposition over Ni/CeO2 catalysts
作者: Li, Y;  Zhang, BC;  Tang, XL;  Xu, YD;  Shen, WJ
通讯作者: 申文杰
关键词: Ni/CeO2 ;  methane decomposition ;  hydrogen
刊名: CATALYSIS COMMUNICATIONS
发表日期: 2006-06-01
DOI: 10.1016/j.catcom.2005.12.002
卷: 7, 期:6, 页:380-386
收录类别: SCI
文章类型: Article
部门归属: 5
项目归属: 501
产权排名: 1;1
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Physical
研究领域[WOS]: Chemistry
英文摘要: The catalytic behavior of Ni/CeO2 catalysts was investigated for methane decomposition at 773 K. Ni/CeO2 catalysts prepared by impregnation and deposition-precipitation methods showed much higher hydrogen formation rates than that of Ni/CeO2 catalyst prepared by coprecipitation method, which exhibited relatively higher CO formation rate. CH4-TPSR measurements confirmed that CO formation is inevitable during methane decomposition, since the lattice oxygen of ceria could react with the deposited carbons. TEM observations further indicated that the morphologies as well as the reactivities of the deposited carbons are strongly dependent on the interaction degrees between Ni and ceria, which in turn explains the differences in the catalytic activity of the Ni/CeO2 catalysts for methane decomposition. The Ni/CeO2 catalyst prepared by coprecipitation method exhibited rather strong metal-support interaction probably through the formation of Ni-O-Ce solid solution, resulting in much lower hydrogen formation rate and relatively higher CO production. (c) 2005 Elsevier B.V. All rights reserved.
关键词[WOS]: FILAMENTOUS CARBON ;  NICKEL-CATALYSTS ;  NI CATALYSTS ;  CERIA ;  GASIFICATION ;  NANOFIBERS ;  REDUCTION ;  OXIDATION ;  EVOLUTION ;  ALUMINA
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000237725100012
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/93747
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

Recommended Citation:
Li, Y,Zhang, BC,Tang, XL,et al. Hydrogen production from methane decomposition over Ni/CeO2 catalysts[J]. CATALYSIS COMMUNICATIONS,2006,7(6):380-386.
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