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Electron Microscopy Studies of Local Structural Modulations in Zeolite Crystals

Zhang, Qing ; Mayoral, Alvaro ; Li, Junyan ; Ruan, Juanfang LU ; Alfredsson, Viveka LU ; Ma, Yanhang ; Yu, Jihong and Terasaki, Osamu (2020) In Angewandte Chemie 132(44). p.19571-19581
Abstract

Zeolites are widely used in catalysis, gas separation, ion exchange, etc. due to their superior physicochemical properties, which are closely related to specific features of their framework structures. Although more than two hundred different framework types have been recognized, it is of great interest to explore from a crystallographic perspective, the atomic positions, surface terminations, pore connectivity and structural defects that deviate from the ideal framework structures, namely local structural modulation. In this article, we review different types of local modulations in zeolite frameworks using various techniques, especially electron microscopy (EM). The most recent advances in resolving structural information at the... (More)

Zeolites are widely used in catalysis, gas separation, ion exchange, etc. due to their superior physicochemical properties, which are closely related to specific features of their framework structures. Although more than two hundred different framework types have been recognized, it is of great interest to explore from a crystallographic perspective, the atomic positions, surface terminations, pore connectivity and structural defects that deviate from the ideal framework structures, namely local structural modulation. In this article, we review different types of local modulations in zeolite frameworks using various techniques, especially electron microscopy (EM). The most recent advances in resolving structural information at the atomic level with aberration corrected EM are also presented, commencing a new era of gaining atomic structural information, not only for all tetrahedral atoms including point vacancies in framework but also for extra-framework cations and surface terminations.

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author
; ; ; ; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
crystallography, electron microscopy, imaging, zeolites
in
Angewandte Chemie
volume
132
issue
44
pages
11 pages
publisher
John Wiley & Sons Inc.
ISSN
0044-8249
DOI
10.1002/ange.202007490
language
English
LU publication?
yes
id
626f4628-82c0-4d5e-ac07-eacde8de961f
date added to LUP
2020-08-10 12:58:29
date last changed
2022-02-01 07:59:09
@article{626f4628-82c0-4d5e-ac07-eacde8de961f,
  abstract     = {{<p>Zeolites are widely used in catalysis, gas separation, ion exchange, etc. due to their superior physicochemical properties, which are closely related to specific features of their framework structures. Although more than two hundred different framework types have been recognized, it is of great interest to explore from a crystallographic perspective, the atomic positions, surface terminations, pore connectivity and structural defects that deviate from the ideal framework structures, namely local structural modulation. In this article, we review different types of local modulations in zeolite frameworks using various techniques, especially electron microscopy (EM). The most recent advances in resolving structural information at the atomic level with aberration corrected EM are also presented, commencing a new era of gaining atomic structural information, not only for all tetrahedral atoms including point vacancies in framework but also for extra-framework cations and surface terminations.</p>}},
  author       = {{Zhang, Qing and Mayoral, Alvaro and Li, Junyan and Ruan, Juanfang and Alfredsson, Viveka and Ma, Yanhang and Yu, Jihong and Terasaki, Osamu}},
  issn         = {{0044-8249}},
  keywords     = {{crystallography; electron microscopy; imaging; zeolites}},
  language     = {{eng}},
  month        = {{10}},
  number       = {{44}},
  pages        = {{19571--19581}},
  publisher    = {{John Wiley & Sons Inc.}},
  series       = {{Angewandte Chemie}},
  title        = {{Electron Microscopy Studies of Local Structural Modulations in Zeolite Crystals}},
  url          = {{http://dx.doi.org/10.1002/ange.202007490}},
  doi          = {{10.1002/ange.202007490}},
  volume       = {{132}},
  year         = {{2020}},
}