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231224s2014 xx |||||o 00| ||eng c |
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|a 10.1021/la5004512
|2 doi
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|a eng
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1 |
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|a Severance, Michael
|e verfasserin
|4 aut
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|a Rapid crystallization of faujasitic zeolites
|b mechanism and application to zeolite membrane growth on polymer supports
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|c 2014
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|a Date Completed 22.04.2015
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|a Date Revised 17.06.2014
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a Zeolites are microporous, crystalline aluminosilicates with the framework made up of T-O-T (T = Si, Al) bonds and enclosed cages and channels of molecular dimensions. Influencing and manipulating the nucleation and growth characteristics of zeolites can lead to novel frameworks and morphologies, as well as decreased crystallization time. In this study, we show that manipulating the supersaturation during synthesis of zeolite X/Y (FAU) via dehydration led to extensive nucleation. Controlled addition of water to this nucleated state promotes the transport of nutrients, with a 4-fold increase in the rate of crystal growth, as compared to conventional hydrothermal process. Structural signature of the nucleated state was obtained by electron microscopy, NMR, and Raman spectroscopy. This extensively intermediate nucleated state was isolated and used as the starting material for zeolite membrane synthesis on porous polymer supports, with membrane formation occurring within an hour. With this time frame for growth, it becomes practical to fabricate zeolite/polymer membranes using roll-to-roll technology, thus making possible new commercial applications
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|a Journal Article
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|a Wang, Bo
|e verfasserin
|4 aut
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1 |
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|a Ramasubramanian, Kartik
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Zhao, Lin
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Ho, W S Winston
|e verfasserin
|4 aut
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| 700 |
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|a Dutta, Prabir K
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1992
|g 30(2014), 23 vom: 17. Juni, Seite 6929-37
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|g volume:30
|g year:2014
|g number:23
|g day:17
|g month:06
|g pages:6929-37
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|u http://dx.doi.org/10.1021/la5004512
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