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IDM-1, a New Zeolite with Intersecting Medium and Extra-Large Pores Built as an Expansion of Zeolite MFI

submitted on 02.03.2020, 14:20 and posted on 03.03.2020, 08:56 by Luis Angel Villaescusa, Jian Li, Zihao Gao, Junliang Sun, Miguel Camblor

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)3(OH) and Si(OSi)2(OH)2 sites, this new zeolite presents high thermal stability, withstanding calcination even to 1000ºC. The location of defects at specific sites of the structure results in alternating hydrophobic SiO2 and hydrophilic SiO(2-x)(OH)2x 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.


MAT2015-71117-R (MINECO/FEDER, UE)

RTI2018-101599-B-C22 (MCUI/AEI/FEDER, UE)

National Natural Science Foundation of China, No. 21871009

National Natural Science Foundation of China, No. 21621061

National Natural Science Foundation of China, No. 21527803

National Natural Science Foundation of China, No. 21471009

Swedish Research Council (VR)

Knut and Alice Wallenberg Foundation (KAW)

Generalitat Valenciana (project PROMETEO/2018/024)


Email Address of Submitting Author


Consejo Superior de Investigaciones Científicas



ORCID For Submitting Author


Declaration of Conflict of Interest

L.A. Villaescusa has filed a patent application on zeolite IDM-1