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题名: Identification of Fe-2(mu-O) and Fe-2(mu-O)(2) sites in Fe/ZSM-35 by in situ resonance Raman spectroscopy
作者: Wang, Junying1, 2;  Li, Guanna1;  Ju, Xiaohua1;  Xia, Haian1;  Fan, Fengtao1;  Wang, Junhu1;  Feng, Zhaochi1;  Li, Can1
关键词: Resonance Raman spectroscopy ;  Fe/ZSM-35 ;  Active iron site
刊名: JOURNAL OF CATALYSIS
发表日期: 2013-05-01
DOI: 10.1016/j.jcat.2013.01.023
卷: 301, 页:77-82
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences ;  Technology
类目[WOS]: Chemistry, Physical ;  Engineering, Chemical
研究领域[WOS]: Chemistry ;  Engineering
英文摘要: The structure of the active iron site in Fe/ZSM-35 was investigated by in situ resonance Raman spectroscopy combined with Mossbauer spectroscopy and DFT calculations. In situ UV resonance Raman spectra coupled with Fe-57 Mossbauer spectra suggest that the active Fe site for N2O decomposition is an Fe-2(mu-O) site, characterized by a Raman band at 875 cm(-1). In situ visible resonance Raman spectra reveals the formation of an Fe-2(mu-O)(2) site with a feature Raman band at 730 cm(-1) upon N2O reacts with the Fe-2(mu-O) site. The Raman band intensity at 730 cm(-1) is decreasing after exposing the Fe-2(mu-O)(2) site to CH4 due to the formation of methoxide species which mimics the biocatalysis of soluble methane monooxygenase (sMMO). Crown Copyright (C) 2013 Published by Elsevier Inc. All rights reserved.
关键词[WOS]: LOW FE CONTENT ;  ACTIVE-SITES ;  MOSSBAUER-SPECTROSCOPY ;  N2O DECOMPOSITION ;  DEPOSITED OXYGEN ;  IRON ;  ZEOLITE ;  FRAMEWORK ;  FERRIERITE ;  FE-ZSM-5
语种: 英语
WOS记录号: WOS:000318332300009
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/137515
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
2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China

Recommended Citation:
Wang, Junying,Li, Guanna,Ju, Xiaohua,et al. Identification of Fe-2(mu-O) and Fe-2(mu-O)(2) sites in Fe/ZSM-35 by in situ resonance Raman spectroscopy[J]. JOURNAL OF CATALYSIS,2013,301:77-82.
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