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A family of zeolites with controlled pore size prepared using a top-down method

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Roth_ADOR_Final.pdf (204.6Kb)
Date
07/2013
Author
Roth, Wieslaw J.
Nachtigall, Petr
Morris, Russell Edward
Wheatley, Paul Stewart
Seymour, Valerie Ruth
Ashbrook, Sharon Elizabeth Marie
Chlubna, Pavla
Grajciar, Lukas
Polozij, Miroslav
Zukal, Arnost
Shvets, Oleksiy
Cejka, Jiri
Keywords
Structure-directing agent
Interlayer expansion
Channels
Framework
Layer
Transformation
Precursors
Silicates
Cations
System
Metadata
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Abstract
The properties of zeolites, and thus their suitability for different applications, are intimately connected with their structures. Synthesizing specific architectures is therefore important, but has remained challenging. Here we report a top-down strategy that involves the disassembly of a parent zeolite, UTL, and its reassembly into two zeolites with targeted topologies, IPC-2 and IPC-4. The three zeolites are closely related as they adopt the same layered structure, and they differ only in how the layers are connected. Choosing different linkers gives rise to different pore sizes, enabling the synthesis of materials with predetermined pore architectures. The structures of the resulting zeolites were characterized by interpreting the X-ray powder-diffraction patterns through models using computational methods; IPC-2 exhibits orthogonal 12- and ten-ring channels, and IPC-4 is a more complex zeolite that comprises orthogonal ten- and eight-ring channels. We describe how this method enables the preparation of functional materials and discuss its potential for targeting other new zeolites.
Citation
Roth , W J , Nachtigall , P , Morris , R E , Wheatley , P S , Seymour , V R , Ashbrook , S E M , Chlubna , P , Grajciar , L , Polozij , M , Zukal , A , Shvets , O & Cejka , J 2013 , ' A family of zeolites with controlled pore size prepared using a top-down method ' Nature Chemistry , vol 5 , no. 7 , pp. 628-633 . DOI: 10.1038/NCHEM.1662
Publication
Nature Chemistry
Status
Peer reviewed
DOI
http://dx.doi.org/10.1038/NCHEM.1662
ISSN
1755-4330
Type
Journal article
Rights
Copyright 2013, the authors. This is the accepted version manuscript.
Collections
  • University of St Andrews Research
  • Chemistry Research
URI
http://hdl.handle.net/10023/4529

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