The Assembly-Disassembly-Organization-Reassembly Mechanism for 3D-2D-3D Transformation of Germanosilicate IWW Zeolite
Hydrolysis of germanosilicate zeolites with the IWW structure shows two different outcomes depending on the composition of the starting materials. Ge‐rich IWW (Si/Ge=3.1) is disassembled into a layered material (IPC‐5P), which can be reassembled into an almost pure silica IWW on treatment with dieth...
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Published in | Angewandte Chemie (International ed.) Vol. 53; no. 27; pp. 7048 - 7052 |
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Main Authors | , , , , , |
Format | Journal Article |
Language | English |
Published |
Weinheim
WILEY-VCH Verlag
01.07.2014
WILEY‐VCH Verlag Wiley Subscription Services, Inc |
Edition | International ed. in English |
Subjects | |
Online Access | Get full text |
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Summary: | Hydrolysis of germanosilicate zeolites with the IWW structure shows two different outcomes depending on the composition of the starting materials. Ge‐rich IWW (Si/Ge=3.1) is disassembled into a layered material (IPC‐5P), which can be reassembled into an almost pure silica IWW on treatment with diethoxydimethylsilane. Ge‐poor IWW (Si/Ge=6.4) is not completely disassembled on hydrolysis, but retains some 3D connectivity. This structure can be reassembled into IWW by incorporation of Al to fill the defects left when the Ge is removed.
ADORable zeolites: The Assembly‐Disassembly‐Organization‐Reassembly (ADOR) mechanism is used to manipulate germanosilicate zeolites with the IWW framework type. The outcome of the process depends critically on the Si/Ge ratio in the starting material. |
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Bibliography: | Funded Access istex:4037AF7E71A44D8241E19B34D439FF801926C257 ark:/67375/WNG-MHTHGFFP-7 Czech Science Foundation - No. P106/12/G015 ArticleID:ANIE201400600 J.Č. thanks the Czech Science Foundation for the support of this research (P106/12/G015). R.E.M. thanks the Royal Society for provision of an industry fellowship and the E.P.S.R.C. for funding (EP/K025112/1). A.B.P. acknowledges the support of the European Community under a Marie Curie Intra-European Fellowship, and Dr. Lynne McCusker for her valuable help with structure analysis. The staff on the Materials Science beamline at the Swiss Light Source in Villigen (Switzerland) is acknowledged for experimental support in the collection of the synchrotron powder diffraction data. We thank Daniel Dawson and Sharon Ashbrook for the NMR data. E.P.S.R.C. - No. EP/K025112/1 These authors contributed equally to this work. J.Č. thanks the Czech Science Foundation for the support of this research (P106/12/G015). R.E.M. thanks the Royal Society for provision of an industry fellowship and the E.P.S.R.C. for funding (EP/K025112/1). A.B.P. acknowledges the support of the European Community under a Marie Curie Intra‐European Fellowship, and Dr. Lynne McCusker for her valuable help with structure analysis. The staff on the Materials Science beamline at the Swiss Light Source in Villigen (Switzerland) is acknowledged for experimental support in the collection of the synchrotron powder diffraction data. We thank Daniel Dawson and Sharon Ashbrook for the NMR data. ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 |
ISSN: | 1433-7851 1521-3773 |
DOI: | 10.1002/anie.201400600 |