Chem. J. Chinese Universities ›› 2021, Vol. 42 ›› Issue (1): 201.doi: 10.7503/cjcu20200415

Special Issue: 分子筛功能材料 2021年,42卷,第1期

• Review • Previous Articles     Next Articles

Progress of Zeolite Structural Analysis Based on Transmission Electron Microscopy

LING Yang1, ZHANG Guanqun1(), MA Yanhang1,2()   

  1. 1.School of Physical Science and Technology,Shanghai Tech University,Shanghai 201210,China
    2.Shanghai Key Laboratory of Green Chemistry and Chemical Processes,School of Chemistry and Molecular Engineering,East China Normal University,Shanghai 200062,China
  • Received:2020-07-01 Online:2021-01-10 Published:2021-01-12
  • Contact: ZHANG Guanqun E-mail:zhanggq1@shanghaitech.edu.cn;mayh2@shanghaitech.edu.cn
  • Supported by:
    ? Supported by the National Natural Science Foundation of China(21835002);the Open Research Fund of Shanghai Key Laboratory of Green Chemistry and Chemical Processes, East China Normal University

Abstract:

Transmission electron microscope has become a powerful tool to solve new zeolite structures, analyze structural defects and study active sites. It has two main functions, imaging and diffraction, including transmission/scanning transmission electron microscopy imaging, selected-area electron diffraction and three-dimensional electron diffraction. Multiple methods were usually combined for a thorough analysis. In recent years, there are breakthrough improvements on hardware of electron microscopes, especially the well- developed spherical aberration correctors and a variety of sensitive detectors, as well as developments of image processing methods. As a result, atomic level imaging of beam sensitive materials such as zeolites has been achievable. Moreover, in situ electron microscopy study of zeolite is also on the way, for a better understanding of zeolites growth and catalytic reaction. In this review we focus on the recent research progresses of zeolites studied by electron microscopy, including new structure analysis, handedness determination, metal@zeolites and so on.

Key words: Transmission electron microscopy, Zeolite structure, Electron diffraction, High resolution electron microscopy

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