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学科主题: 物理化学
题名: A new class of solid Lewis acid catalysts based on interlayer expansion of layered silicates of the RUB-36 type with heteroatoms
作者: De Baerdemaeker, Trees1;  Gies, Hermann2;  Yilmaz, Bilge3;  Mueller, Ulrich4;  Feyen, Mathias4;  Xiao, Feng-Shou5;  Zhang, Weiping6;  Yokoi, Toshiyuki7;  Bao, Xinhe8;  De Vos, Dirk E.1
通讯作者: DirkE.DeVos
刊名: JOURNAL OF MATERIALS CHEMISTRY A
发表日期: 2014-07-07
DOI: 10.1039/c4ta01384k
卷: 2, 期:25, 页:9709-9717
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences ;  Technology
类目[WOS]: Chemistry, Physical ;  Energy & Fuels ;  Materials Science, Multidisciplinary
研究领域[WOS]: Chemistry ;  Energy & Fuels ;  Materials Science
英文摘要: Interlayer expanded zeolites are derived from layered zeolite precursors by inserting a tetrahedrally coordinated atom (T-atom) in between the precursor layers. To achieve this expansion, a Si source like dichlorodimethylsilane or diethoxydimethylsilane is typically used. In the interlayer expansion of the layered zeolite precursor RUB-36, an Fe salt instead of a silylating agent was used to fill up the linking sites in between the layers. The obtained material showed a shift of the first XRD reflection similar to that of RUB-36 interlayer expanded with dichlorodimethylsilane, indicating an increase in interlayer distance. Diffuse reflectance UV-vis spectra and EPR characterization proved the incorporation of isolated Fe sites. Using FTIR spectroscopy with pyridine and acetonitrile as probe molecules, it was found that the incorporation of Fe results in an increase in Lewis acidity. The material was successfully used as a catalyst in the acylation of anisole with acetic anhydride and in the alkylation of toluene with benzyl chloride. The Fe incorporation proved to be remarkably stable. In spite of the HCl production during the alkylation reaction, no leaching was observed and the catalyst could be reused after regeneration.
关键词[WOS]: FRIEDEL-CRAFTS BENZYLATION ;  FER-TYPE ZEOLITE ;  CRYSTAL-STRUCTURE ;  VOID STRUCTURE ;  PRECURSOR ;  IRON ;  FRAMEWORK ;  BENZENE ;  EPR ;  HYDROCONVERSION
语种: 英语
WOS记录号: WOS:000337774100035
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/144261
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.Katholieke Univ Leuven, Ctr Surface Chem & Catalysis, B-3001 Leuven, Belgium
2.Ruhr Univ Bochum, Inst Geol Mineral & Geophys, D-44780 Bochum, Germany
3.BASF Corp, Chem Res & Engn, Iselin, NJ 08830 USA
4.BASF SE, Chem Res & Engn, D-67056 Ludwigshafen, Germany
5.Zhejiang Univ, Hangzhou 310028, Zhejiang, Peoples R China
6.Dalian Univ Technol, State Key Lab Fine Chem, Dalian 116024, Peoples R China
7.Tokyo Inst Technol, Chem Resources Lab, Yokohama, Kanagawa 2268503, Japan
8.Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China

Recommended Citation:
De Baerdemaeker, Trees,Gies, Hermann,Yilmaz, Bilge,et al. A new class of solid Lewis acid catalysts based on interlayer expansion of layered silicates of the RUB-36 type with heteroatoms[J]. JOURNAL OF MATERIALS CHEMISTRY A,2014,2(25):9709-9717.
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