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题名: Efficient and stable silica-supported iron phosphate catalysts for oxidative bromination of methane
作者: Lin, Ronghe1, 3;  Ding, Yunjie1, 2;  Gong, Leifeng1, 3;  Dong, Wenda1, 3;  Wang, Junhu2;  Zhang, Tao2
关键词: Methane ;  Oxidative bromination ;  Iron phosphate ;  CH(3)Br/CO ;  alpha-Fe(3)(P(2)O(7))(2) ;  Fe(2)P(2)O(7) ;  (57)Fe Mossbauer spectroscopy ;  Redox route
刊名: JOURNAL OF CATALYSIS
发表日期: 2010-05-25
DOI: 10.1016/j.jcat.2010.03.011
卷: 272, 期:1, 页:65-73
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: FePO(4)/SiO(2) was employed for the oxidative bromination of methane (OMB) for the first time. A methane conversion of 50% and total selectivity of 96% for CH(3)Br plus CO (CH(3)Br:CO approximate to 1) were obtained at 570 degrees C. Comparison experiments were designed to investigate the roles of O(2), HBr and the catalysts. Powder Xray diffraction (XRD), X-ray photoelectron spectroscopy (XPS). Fourier-transform infrared spectroscopy (FTIR) and (57)Fe Mossbauer spectroscopic studies were conducted on the catalysts. It was confirmed that the FePO(4) components of the fresh catalyst transformed quickly to stable active species during the induction period, and the active components of the stable catalyst have been found to consist of near-equimolar alpha-Fe(3)(P(2)O(7))(2) and Fe(2)P(2)O(7). The reaction over the FePO(4)/SiO(2) catalyst was proposed to follow a redox route based on the results of comparison experiments and associated characterization. (C) 2010 Elsevier Inc. All rights reserved.
关键词[WOS]: H-2-O-2 GAS-MIXTURE ;  ISOBUTYRIC ACID ;  SELECTIVE OXIDATION ;  HIGHER HYDROCARBONS ;  INTEGRATED PROCESS ;  CONVERSION ;  DEHYDROGENATION ;  CONDENSATION ;  AMMOXIDATION ;  FUELS
语种: 英语
WOS记录号: WOS:000279090500008
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/141812
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 Natl Lab Clean Energy, Dalian 116023, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
3.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China

Recommended Citation:
Lin, Ronghe,Ding, Yunjie,Gong, Leifeng,et al. Efficient and stable silica-supported iron phosphate catalysts for oxidative bromination of methane[J]. JOURNAL OF CATALYSIS,2010,272(1):65-73.
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