journal article·2021-06-22Open access

Studying Reaction Mechanisms in Solution Using a Distributed Electron Microscopy Method

Hanglong Wu, Teng Li, Sai P. Maddala, Zafeiris J. Khalil, Rick R. M. Joosten, Brahim Mezari, Emiel J. M. Hensen, Gijsbertus de With, Heiner Friedrich, Jeroen A. van Bokhoven, Joseph P. Patterson

ACS Nano· Volume 15· Issue 6

Abstract

Electron microscopy (EM) of materials undergoing chemical reactions provides knowledge of the underlying mechanisms. However, the mechanisms are often complex and cannot be fully resolved using a single method. Here, we present a distributed electron microscopy method for studying complex reactions. The method combines information from multiple stages of the reaction and from multiple EM methods, including liquid phase EM (LP-EM), cryogenic EM (cryo-EM), and cryo-electron tomography (cryo-ET). We demonstrate this method by studying the desilication mechanism of zeolite crystals. Collectively, our data reveal that the reaction proceeds via a two-step anisotropic etching process and that the defects in curved surfaces and between the subunits in the crystal control the desilication kinetics by directing mass transport.
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Research context

OpenAlex topics: Electron and X-Ray Spectroscopy Techniques · Advanced Electron Microscopy Techniques and Applications · Surface and Thin Film Phenomena

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Laboratory of Physical Chemistry, Department of Chemical Engineering, Eindhoven University of Technology, 5600 MB Eindhoven, The Netherlands

Department of Chemistry and Applied Bioscience, Institute for Chemical and Bioengineering, ETH Zurich, Vladimir-Prelog-Weg 1, 8093 Zurich, Switzerland

Center for Multiscale Electron Microscopy, Department of Chemical Engineering, Eindhoven University of Technology, 5600 MB Eindhoven, The Netherlands

Inorganic Materials & Catalysis Group, Eindhoven University of Technology, 5600 MB Eindhoven, The Netherlands

Institute for Complex Molecular Systems, Eindhoven University of Technology, PO Box 513, 5600 MB Eindhoven, The Netherlands

Department of Chemistry, University of California, Irvine, Irvine, California 92697-2025, United States

Funding

China Scholarship Council · H2020 European Research Council

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