Interlayer expansion using metal-linker units: Crystalline microporous silicate zeolites with metal centers on specific framework sites

doi:10.1016/j.micromeso.2015.09.051

	Interlayer expansion using metal-linker units: Crystalline microporous silicate zeolites with metal centers on specific framework sites
	Tatsumi, Takashi 1; Sao, Xinhe 8; Gies, Hermann 2; Feyen, Mathias 3; De Baerdemaeker, Trees 4; De Vos, Dirk E.4; Yilmaz, Bilge 5; Mueller, Ulrich 3; Meng, Xiangju 6; Xiao, Feng-Shou 6
刊名	MICROPOROUS AND MESOPOROUS MATERIALS
	2016-03-01
卷号	222 页码:235-240
关键词	Interlayer Expanded Zeolite Iez Metal Linker Microporous Metallo-silicate Rietveld Analysis
ISSN号	1387-1811
DOI	10.1016/j.micromeso.2015.09.051
文献子类	Article
英文摘要	Interlayer expansion using silylating agents to connect layer silicates to 3D framework structures has shown to be a versatile synthesis route to new crystalline, microporous frameworks. We demonstrate here that also Me cations can be introduced on the linker sites applying the same synthesis procedure. An acidic aqueous Fe-chloride solution was used in a hydrothermal reaction to convert the layered hydrous silicate precursor RUB-36 into an interlayer expanded zeolite, containing Fe at the linker sites, Fe-IEZ-RUB-36, Si19.14Fe0.86O38(OH)(4). Structure analysis from powder X-ray data using the Rietveld technique confirmed that the porous framework is stable upon calcination and contains Fe on T-sites at the linker position. SEM-EDX analysis is in agreement with the analysis of the electron density maps showing that almost every other linker T-position is occupied by Fe-ions. The material crystallizes in the monoclinic space group Pm with a = 12.200(9) angstrom, b = 13.981(8) angstrom, c = 7.369(2) angstrom, and beta = 106.9(1)degrees. Applying a similar synthesis procedure, the Sn-analog, Sn-IEZ-RUB-36, Si38.6Sn1.4O76(OH)(8), has been obtained and structurally characterized. Despite its limited crystallinity, Rietveld analysis of the PXRD data set confirmed the materials framework topology and chemical composition (a = 23.856(14) angstrom, b = 14.103(7) angstrom, c = 7.412(7) angstrom, in SG Pnm2(1)). We conclude, that the synthesis procedure is flexible and, meanwhile, has been extended to other metal cations such as Ti, Zn, Eu and Al leading to microporous materials with potentially active metal cations on well defined sites of the silicate framework. (C) 2015 Elsevier Inc. All rights reserved.
WOS关键词	TOPOTACTIC CONDENSATION ; LAYER SILICATES ; RUB-39 ; TRANSFORMATION ; PRECURSORS ; CATALYSTS
WOS研究方向	Chemistry ; Science & Technology - Other Topics ; Materials Science
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000370109400029
内容类型	期刊论文
源URL	[http://cas-ir.dicp.ac.cn/handle/321008/171248]
专题	大连化学物理研究所_中国科学院大连化学物理研究所
通讯作者	Gies, Hermann
作者单位	1.Tokyo Inst Technol, Chem Resources Lab, Yokohama, Kanagawa 2268503, Japan 2.Ruhr Univ Bochum, Inst Geol Mineral & Geophys, D-44780 Bochum, Germany 3.BASF SE, Chem Res & Engn, D-67056 Ludwigshafen, Germany 4.Katholieke Univ Leuven, Ctr Surface Chem & Catalysis, Kasteelpk Arenberg 23, B-3001 Leuven, Belgium 5.BASF Corp, Chem Res & Engn, Iselin, NJ 08830 USA 6.Zhejiang Univ, Hangzhou 310028, Peoples R China 7.Dalian Univ Technol, State Key Lab Fine Chem, Dalian 116024, Peoples R China 8.Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
推荐引用方式 GB/T 7714	Tatsumi, Takashi,Sao, Xinhe,Gies, Hermann,et al. Interlayer expansion using metal-linker units: Crystalline microporous silicate zeolites with metal centers on specific framework sites[J]. MICROPOROUS AND MESOPOROUS MATERIALS,2016,222:235-240.
APA	Tatsumi, Takashi.,Sao, Xinhe.,Gies, Hermann.,Feyen, Mathias.,De Baerdemaeker, Trees.,...&Yokoi, Toshiyuki.(2016).Interlayer expansion using metal-linker units: Crystalline microporous silicate zeolites with metal centers on specific framework sites.MICROPOROUS AND MESOPOROUS MATERIALS,222,235-240.
MLA	Tatsumi, Takashi,et al."Interlayer expansion using metal-linker units: Crystalline microporous silicate zeolites with metal centers on specific framework sites".MICROPOROUS AND MESOPOROUS MATERIALS 222(2016):235-240.