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题名: Effect of Ag+ cations on nonoxidative activation of methane to C-2-hydrocarbons
作者: Miao, SJ;  Wang, Y;  Ma, D;  Zhu, QJ;  Zhou, ST;  Su, LL;  Tan, DL;  Bao, XH
刊名: JOURNAL OF PHYSICAL CHEMISTRY B
发表日期: 2004-11-18
DOI: 10.1021/jp047209+
卷: 108, 期:46, 页:17866-17871
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Physical
研究领域[WOS]: Chemistry
英文摘要: Nonoxidative activation of methane was carried out over Ag/ZSM-5 catalysts, prepared by the wetness impregnation method, and the catalysts were characterized by various techniques. Theoretical calculation was further employed to clarify the reaction mechanism of methane coupling over the catalysts. Ag+ ions were found to be the main Ag species at low loading (1-5 wt %) whereas higher loading (10 wt %) resulted in metal Clusters. Combined with experimental evidence and computer modeling, it is concluded that isolated Ag+ ions play a crucial role in the catalytic coupling of methane under nonoxidative conditions.
关键词[WOS]: OXYGEN-FREE CONVERSION ;  NONMETALLIC SILVER CLUSTERS ;  ISOTHERMAL 2-STEP REACTION ;  DENSITY-FUNCTIONAL THEORY ;  HIGHER HYDROCARBONS ;  AQUEOUS-SOLUTION ;  ZEOLITE ZSM-5 ;  PLATINUM EUROPT-1 ;  FIXED TEMPERATURE ;  REACTION SEQUENCE
语种: 英语
WOS记录号: WOS:000225079300026
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/139583
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:
Miao, SJ,Wang, Y,Ma, D,et al. Effect of Ag+ cations on nonoxidative activation of methane to C-2-hydrocarbons[J]. JOURNAL OF PHYSICAL CHEMISTRY B,2004,108(46):17866-17871.
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