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IDM-1: A Zeolite with Intersecting Medium and Extra-Large Pores Built as an Expansion of Zeolite MFI

AuthorsVillaescusa, Luis A.; Li, Jian; Gao, Zihao; Sunz, Junliang; Camblor, Miguel Ángel
KeywordsExtra-large pores
Rotation electron diffraction
Structure solution
Issue Date2020
CitationAngewandte Chemie International Edition (2020)
Abstract[EN] IDM-1 is a new silica zeolite with an ordered and well-defined framework constructed by alternating pentasil layers and interrupted layers, giving rise to an intersecting system of straight medium pores and undulating extra-large lobed pores. This unique structure was solved by rotation electron diffraction and refined against synchrotron powder X-ray diffraction data. Despite the presence of both Si(OSi)(OH) and Si(OSi)(OH) sites, this new zeolite presents high thermal stability, withstanding calcination even to 1000 °C. The location of defects at specific sites of the structure results in alternating hydrophobic SiO and hydrophilic SiO(OH) intracrystalline regions. This peculiar combination of intersecting medium and extra-large pores and alternating regions of different chemical character may provide this zeolite with unique catalytic properties.
Publisher version (URL)http://dx.doi.org/10.1002/anie.202001740
Identifiersdoi: 10.1002/anie.202001740
issn: 1521-3773
Appears in Collections:(ICMM) Artículos
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