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Effect of Water on Active Iron Sites for N2O Decomposition over Fe/ZSM-5 Catalyst
Xia, Haian; Sun, Keqiang; Feng, Zhaochi; Li, Can
刊名JOURNAL OF PHYSICAL CHEMISTRY C
2011-01-20
DOI10.1021/jp1094917
115期:2页:542-548
收录类别SCI
文章类型Article
WOS标题词Science & Technology ; Physical Sciences ; Technology
类目[WOS]Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary
研究领域[WOS]Chemistry ; Science & Technology - Other Topics ; Materials Science
关键词[WOS]NITROUS-OXIDE DECOMPOSITION ; HIGH-TEMPERATURE TREATMENT ; CHEMICAL-VAPOR-DEPOSITION ; EX-FRAMEWORK FEZSM-5 ; SELECTIVE OXIDATION ; MFI ZEOLITES ; COMPREHENSIVE DFT ; KINETIC-ANALYSIS ; NOX REDUCTION ; FE-SILICALITE
英文摘要The effect of H2O on N2O decomposition in Fe/ZSM-5 catalyst was investigated by steady-state kinetics, transient response methods, in situ Raman, and IR spectroscopies. Fe/ZSM-5 catalysts show very high activity in N2O decomposition but are deactivated rapidly when trace amounts of water are present. In situ Raman spectra results indicate that the peroxide bridge on the binuclear Fe sites are converted to the hydroxylated binuclear Fe sites when exposed to water. It was found that the Raman band at 743 cm(-1) and the IR bands at 3628 and 3672 cm(-1) are associated with the deactivation of the catalyst during N2O decomposition. The catalyst was regenerated after calcination at a temperature over 773 K. The inhibiting effect of H2O on N2O decomposition indicates that the presence of water leads to the structural transformation from the dehydroxylated binuclear Fe sites to the hydroxylated binuclear Fe sites on Fe/ZSM-5.
语种英语
WOS记录号WOS:000286090100030
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被引频次:14[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/321008/142354
专题中国科学院大连化学物理研究所
作者单位Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
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Xia, Haian,Sun, Keqiang,Feng, Zhaochi,et al. Effect of Water on Active Iron Sites for N2O Decomposition over Fe/ZSM-5 Catalyst[J]. JOURNAL OF PHYSICAL CHEMISTRY C,2011,115(2):542-548.
APA Xia, Haian,Sun, Keqiang,Feng, Zhaochi,&Li, Can.(2011).Effect of Water on Active Iron Sites for N2O Decomposition over Fe/ZSM-5 Catalyst.JOURNAL OF PHYSICAL CHEMISTRY C,115(2),542-548.
MLA Xia, Haian,et al."Effect of Water on Active Iron Sites for N2O Decomposition over Fe/ZSM-5 Catalyst".JOURNAL OF PHYSICAL CHEMISTRY C 115.2(2011):542-548.
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