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Title: ITQ-54: a multi-dimensional extra-large pore zeolite with 20 × 14 × 12-ring channels

Abstract

A multi-dimensional extra-large pore silicogermanate zeolite, named ITQ-54, has been synthesised by in situ decomposition of the N,N-dicyclohexylisoindolinium cation into the N-cyclohexylisoindolinium cation. Its structure was solved by 3D rotation electron diffraction (RED) from crystals of ca. 1 μm in size. The structure of ITQ-54 contains straight intersecting 20 × 14 × 12-ring channels along the three crystallographic axes and it is one of the few zeolites with extra-large channels in more than one direction. ITQ-54 has a framework density of 11.1 T atoms per 1000 Å 3, which is one of the lowest among the known zeolites. ITQ-54 was obtained together with GeO 2 as an impurity. A heavy liquid separation method was developed and successfully applied to remove this impurity from the zeolite. ITQ-54 is stable up to 600 °C and exhibits permanent porosity. The structure was further refined using powder X-ray diffraction (PXRD) data for both as-made and calcined samples.

Authors:
 [1];  [2];  [2];  [1];  [1]
  1. Consejo Superior de Investigaciones Cientificas (CSIC), Valencia (Spain). Univ. Politecnica de Valencia (CSIC-UPV)
  2. Stockholm Univ. (Sweden). Berzeli Center EXSELENT on Porous Materials and Inorganic and Structural Chemistry
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States). Advanced Photon Source (APS)
OSTI Identifier:
1164953
Grant/Contract Number:
AC02-06CH11357
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Chemical Science
Additional Journal Information:
Journal Volume: 6; Journal Issue: 1; Journal ID: ISSN 2041-6520
Publisher:
Royal Society of Chemistry
Country of Publication:
United States
Language:
ENGLISH
Subject:
36 MATERIALS SCIENCE; 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY

Citation Formats

Jiang, Jiuxing, Yun, Yifeng, Zou, Xiaodong, Jorda, Jose Luis, and Corma, Avelino. ITQ-54: a multi-dimensional extra-large pore zeolite with 20 × 14 × 12-ring channels. United States: N. p., 2015. Web. doi:10.1039/C4SC02577F.
Jiang, Jiuxing, Yun, Yifeng, Zou, Xiaodong, Jorda, Jose Luis, & Corma, Avelino. ITQ-54: a multi-dimensional extra-large pore zeolite with 20 × 14 × 12-ring channels. United States. doi:10.1039/C4SC02577F.
Jiang, Jiuxing, Yun, Yifeng, Zou, Xiaodong, Jorda, Jose Luis, and Corma, Avelino. Thu . "ITQ-54: a multi-dimensional extra-large pore zeolite with 20 × 14 × 12-ring channels". United States. doi:10.1039/C4SC02577F. https://www.osti.gov/servlets/purl/1164953.
@article{osti_1164953,
title = {ITQ-54: a multi-dimensional extra-large pore zeolite with 20 × 14 × 12-ring channels},
author = {Jiang, Jiuxing and Yun, Yifeng and Zou, Xiaodong and Jorda, Jose Luis and Corma, Avelino},
abstractNote = {A multi-dimensional extra-large pore silicogermanate zeolite, named ITQ-54, has been synthesised by in situ decomposition of the N,N-dicyclohexylisoindolinium cation into the N-cyclohexylisoindolinium cation. Its structure was solved by 3D rotation electron diffraction (RED) from crystals of ca. 1 μm in size. The structure of ITQ-54 contains straight intersecting 20 × 14 × 12-ring channels along the three crystallographic axes and it is one of the few zeolites with extra-large channels in more than one direction. ITQ-54 has a framework density of 11.1 T atoms per 1000 Å3, which is one of the lowest among the known zeolites. ITQ-54 was obtained together with GeO2 as an impurity. A heavy liquid separation method was developed and successfully applied to remove this impurity from the zeolite. ITQ-54 is stable up to 600 °C and exhibits permanent porosity. The structure was further refined using powder X-ray diffraction (PXRD) data for both as-made and calcined samples.},
doi = {10.1039/C4SC02577F},
journal = {Chemical Science},
number = 1,
volume = 6,
place = {United States},
year = {Thu Jan 01 00:00:00 EST 2015},
month = {Thu Jan 01 00:00:00 EST 2015}
}

Journal Article:
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Cited by: 22 works
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