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Hydrogen production from methane decomposition over Ni/CeO2 catalysts
Li, Y; Zhang, BC; Tang, XL; Xu, YD; Shen, WJ; Shen WJ(申文杰)
关键词Ni/ceo2 Methane Decomposition Hydrogen
刊名CATALYSIS COMMUNICATIONS
2006-06-01
DOI10.1016/j.catcom.2005.12.002
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
关键词[WOS]FILAMENTOUS CARBON ; NICKEL-CATALYSTS ; NI CATALYSTS ; CERIA ; GASIFICATION ; NANOFIBERS ; REDUCTION ; OXIDATION ; EVOLUTION ; ALUMINA
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.
语种英语
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WOS记录号WOS:000237725100012
引用统计
被引频次:74[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/93747
专题中国科学院大连化学物理研究所
通讯作者Shen WJ(申文杰)
作者单位Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
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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.
APA Li, Y,Zhang, BC,Tang, XL,Xu, YD,Shen, WJ,&申文杰.(2006).Hydrogen production from methane decomposition over Ni/CeO2 catalysts.CATALYSIS COMMUNICATIONS,7(6),380-386.
MLA Li, Y,et al."Hydrogen production from methane decomposition over Ni/CeO2 catalysts".CATALYSIS COMMUNICATIONS 7.6(2006):380-386.
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