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题名: Surface functionalization of SBA-15-ordered mesoporous silicas: Oxidation of benzene to phenol by nitrous oxide
作者: Li, Ying1;  Feng, Zhaochi2;  van Santen, R. A.1;  Hensen, E. J. M.1;  Li, Can2
通讯作者: E.J.M. Hensen ;  李灿
关键词: selective oxidation ;  benzene ;  nitrous oxide ;  Fe-Ga-SBA-15 ;  ordered mesoporous silica ;  active sites ;  resonance Raman spectroscopy
刊名: JOURNAL OF CATALYSIS
发表日期: 2008-04-25
DOI: 10.1016/j.jcat.2008.02.001
卷: 255, 期:2, 页:190-196
收录类别: SCI
文章类型: Article
部门归属: 5
项目归属: 503
产权排名: 2;2
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: We report the preparation and catalytic properties of highly ordered mesoporous Fe-Ga-SBA-15 materials via direct hydrothermal synthesis. Gallium and iron ions were introduced directly into the synthesis gel typical for the preparation of SBA-15. The resulting materials had hexagonally ordered mesopores of about 6 nm and surface areas >1000 m(2)/g. In Fe-SBA-15, the iron species were mainly tetrahedrally coordinated in the amorphous silica walls. In the presence of Ga (Fe-Ga-SBA-15), Fe species were located at the silica surface as isolated species, as determined by Raman and diffuse-reflectance UV-Vis spectroscopy measurements. The Fe species in Fe-Ga-SBA-15 displayed similar properties as the FeZSM-5 zeolites toward nitrous oxide decomposition and were active in the oxidation of benzene to phenol by nitrous oxide. Ga-SBA-15 and Fe-SBA-15, on the other hand, showed no catalytic activity. Compared with Fe-Al-SBA-15, Fe-Ga-SBA-15 displayed greater selectivity to the desired phenol product. (C) 2008 Elsevier Inc. All rights reserved.
关键词[WOS]: N2O DECOMPOSITION ;  SELECTIVE OXIDATION ;  MFI ZEOLITES ;  IRON ;  FRAMEWORK ;  ALUMINUM ;  SBA-15 ;  PERFORMANCE ;  REACTIVITY ;  COPOLYMER
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000255668200006
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/101297
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.Eindhoven Univ Technol, Schuit Inst Catalysis, NL-5600 MB Eindhoven, Netherlands
2.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China

Recommended Citation:
Li, Ying,Feng, Zhaochi,van Santen, R. A.,et al. Surface functionalization of SBA-15-ordered mesoporous silicas: Oxidation of benzene to phenol by nitrous oxide[J]. JOURNAL OF CATALYSIS,2008,255(2):190-196.
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