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题名: Methane Combustion over Pd/Al2O3 Catalyst: Effects of Chlorine Ions and Water on Catalytic Activity
作者: Gao Diannan1, 2;  Wang Sheng1;  Zhang Chunxi1;  Yuan Zhongshan1;  Wang Shudong1
关键词: palladium ;  alumina ;  methane ;  catalytic combustion ;  deactivation ;  regeneration ;  chlorine ion ;  water vapor
刊名: CHINESE JOURNAL OF CATALYSIS
发表日期: 2008-12-01
卷: 29, 期:12, 页:1221-1225
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: The influences of residual chlorine ions and water on the performance of it Pd/Al2O3 catalyst in methane combustion have been studied. The results show that the catalyst containing Cl exhibits a relatively low activity, and the addition of water to the reaction system accelerates the deactivation process. The catalyst has been characterized by N-2 adsorption. X-ray fluorescence. Fourier transform infrared spectroscopy (FT-IR), and thermogravimetry (TG). The results show that the presence of Cl appears' to strongly inhibit the total oxidation of methane and hinder the dispersion of Pd on Al2O3. The formation of Pd(OH)(2) during the reaction is the most likely reason for the inhibition effect of water, which is confirmed by FT-IR and TG analysis. The regeneration of the Pd/Al2O3 catalyst can be achieved by purging in nitrogen at 550 degrees C.
关键词[WOS]: SUPPORTED PD CATALYSTS ;  IN-SITU IR ;  LOW-TEMPERATURE ;  TOTAL OXIDATION ;  GAMMA-AL2O3 ;  BEHAVIOR ;  VAPOR
语种: 英语
WOS记录号: WOS:000262385100007
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/140890
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:
Gao Diannan,Wang Sheng,Zhang Chunxi,et al. Methane Combustion over Pd/Al2O3 Catalyst: Effects of Chlorine Ions and Water on Catalytic Activity[J]. CHINESE JOURNAL OF CATALYSIS,2008,29(12):1221-1225.
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