Interconversion of the CDO Layered Precursor ZSM-55 between FER and CDO Frameworks by Controlled Deswelling and Reassembly

0467328 - ÚFCH JH 2017 RIV US eng J - Journal Article
Roth, W. J. - Gil, B. - Makowski, W. - Slawek, A. - Grzybek, J. - Kubů, Martin - Čejka, Jiří
Interconversion of the CDO Layered Precursor ZSM-55 between FER and CDO Frameworks by Controlled Deswelling and Reassembly.
Chemistry of Materials. Roč. 28, č. 11 (2016), s. 3616-3619. ISSN 0897-4756. E-ISSN 1520-5002
R&D Projects: GA ČR(CZ) GAP106/12/0189
Institutional support: RVO:61388955
Keywords : TOPOTACTIC CONDENSATION * 2-DIMENSIONAL ZEOLITES * MCM-22
Subject RIV: CF - Physical ; Theoretical Chemistry
Impact factor: 9.466, year: 2016

Zeolites are very useful and valuable crystalline materials1
with exceptional catalytic and selective sorption properties2,3
that are a direct consequence of their microporous
framework structures.4,5 Zeolite structures are usually extended
in three dimensions (3D)6 as crystals with a submicrometer and
greater size. An increasing number of frameworks, starting with
the MWW,7,8 have demonstrated formation of layers with one
dimension equal to 1−3 nm corresponding to about one or a
fraction of a unit cell.9 They form analogues of layered solids,
such as clays and layered oxides,10,11 and have been named 2D
zeolites.12 The typical primary representatives of 2D zeolites,
i.e., those that can be further modified into various other
layered structures and forms, are recognized as layered zeolite
precursors. They can produce the conventional 3D frameworks
by topotactic condensation,13 which represents the second
zeolite synthesis pathway complementing the conventional
direct assembly in 3D.14 The area of zeolites has been
undergoing enormous qualitative and quantitative expansion
due to these 2D forms, which have revealed many novel
materials and phenomena15,16 with possible applications in
catalysis17 and a new platform for drug delivery...
Permanent Link: http://hdl.handle.net/11104/0265448