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题名: Influence of metal oxides on the performance of Pd/Al2O3 catalysts for methane combustion under lean-fuel conditions
作者: Liu, Ying1, 2;  Wang, Sheng1;  Gao, Diannan1;  Sun, Tianjun1;  Zhang, Chunxi1;  Wang, Shudong1
关键词: Methane combustion ;  Palladium ;  Spinel ;  NH3-TPD
刊名: FUEL PROCESSING TECHNOLOGY
发表日期: 2013-07-01
DOI: 10.1016/j.fuproc.2013.01.013
卷: 111, 页:55-61
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences ;  Technology
类目[WOS]: Chemistry, Applied ;  Energy & Fuels ;  Engineering, Chemical
研究领域[WOS]: Chemistry ;  Energy & Fuels ;  Engineering
英文摘要: Pd/Al2O3 Catalysts modified by different metal oxides (Mn, Fe, La, Mg and Ni oxides) were prepared and tested for fuel-lean methane/air catalytic combustion. It was found that the support material influenced the combustion performance significantly. The addition of NiO or MgO effectively improved the activity and hydrothermal stability of catalysts. X-ray diffraction (XRD) results showed the presence of spinel phase in the Pd/Al2O3-NiO and Pd/Al2O3-MgO catalysts. Temperature-programmed desorption of ammonia (NH3-TPD) measurements indicated that the supports became weakly acidic because of the formation of NiAl2O4 or MgAl2O4 spinel. Scanning electron microscopy (SEM) and transmission electron microscopy (TEM) images showed the well dispersion of Pd particles on the Al2O3-NiO and Al2O3-MgO supports. It was concluded that the formation of the NiAl2O4 or MgAl2O4 spinel phase during preparation would be beneficial for the methane catalytic performance of Pd catalysts. (c) 2013 Elsevier B.V. All rights reserved.
关键词[WOS]: PALLADIUM-BASED CATALYSTS ;  ALUMINA-SUPPORTED PALLADIUM ;  LOW-TEMPERATURE ;  PD/CE-ZR/AL2O3 CATALYST ;  THERMAL-STABILITY ;  TOTAL OXIDATION ;  CARBON-DIOXIDE ;  PD CATALYSTS ;  WATER-VAPOR ;  SOL-GEL
语种: 英语
WOS记录号: WOS:000317943200006
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/137930
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, Dalian 116023, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China

Recommended Citation:
Liu, Ying,Wang, Sheng,Gao, Diannan,et al. Influence of metal oxides on the performance of Pd/Al2O3 catalysts for methane combustion under lean-fuel conditions[J]. FUEL PROCESSING TECHNOLOGY,2013,111:55-61.
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