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题名: Effect of Ni Addition on Methane Catalytic Combustion Performance of Pd/Al2O3 Catalyst
作者: Liu Ying1, 2;  Wang Sheng1;  Gao Diannan1;  Wang Shudong1
关键词: palladium ;  alumina ;  nickel ;  methane ;  catalytic combustion
刊名: CHINESE JOURNAL OF CATALYSIS
发表日期: 2012-08-01
DOI: 10.3724/SP.J.1088.2012.20340
卷: 33, 期:8, 页:1354-1359
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences ;  Technology
类目[WOS]: Chemistry, Applied ;  Chemistry, Physical ;  Engineering, Chemical
研究领域[WOS]: Chemistry ;  Engineering
英文摘要: Pd/Al2O3 catalyst samples modified by Ni promoter were prepared and tested for methane catalytic combustion under lean-fuel condition. A series of Pd catalyst samples with different Ni contents were characterized by N-2 adsorption, X-ray diffraction, temperature-programmed reduction, temperature-programmed desorption of ammonia and transmission electron microscopy. In addition, the performance of the catalyst samples for lean methane combustion was studied. The results showed that the addition of Ni effectively improved the activity and hydrothermal stability of catalyst samples due to the formation of NiAl2O4 spinel. As Ni content increased, the NiAl2O4 content increased, thus the performance of the catalyst increased. For Pd/Ni-Al2O3 sample with 20% Ni, methane conversion remained 97.5% after 150 h at 600 degrees C. Weaker acidity of the supports and the well dispersion of Pd particles on the supports contributed by NiAl2O4 phase might be the reason of high performance of the catalyst.
关键词[WOS]: ALUMINA-SUPPORTED PALLADIUM ;  HIGH-SURFACE-AREA ;  LOW-TEMPERATURE ;  MESOPOROUS ALUMINA ;  CHLORINE IONS ;  SOL-GEL ;  OXIDATION ;  NICKEL ;  OXIDE ;  STABILITY
语种: 英语
WOS记录号: WOS:000307624400016
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/138066
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, Liaoning, Peoples R China
2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China

Recommended Citation:
Liu Ying,Wang Sheng,Gao Diannan,et al. Effect of Ni Addition on Methane Catalytic Combustion Performance of Pd/Al2O3 Catalyst[J]. CHINESE JOURNAL OF CATALYSIS,2012,33(8):1354-1359.
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