Controlling Dissolution and Transformation of Zeolitic Imidazolate Frameworks by using Electron-Beam-Induced Amorphization

Angewandte Chemie
Sabrina ConradMichael Tsapatsis

Abstract

Amorphous zeolitic imidazolate frameworks (ZIFs) offer promising applications as novel functional materials. Herein, amorphization of ZIF-L through scanning-electron-beam exposure is demonstrated, based on amorphization of individual ZIF-L crystals. The amorphized ZIF product has drastically increased stability against dissolution in water. An electron dose that allows for complete preservation of amorphous particles after immersion in water is established, resulting in new shapes of amorphous ZIF-L with spatial control at the sub-micrometer length scale. Changed water stability as a consequence of scanning-electron-beam exposure is demonstrated for three additional metal-organic frameworks (ZIF-8, Zn(BeIm)OAc, MIL-101), highlighting the potential use of an electron beam for top-down MOF patterning. Lastly, recrystallization of ZIF-L in the presence of linker is studied and shows distinct differences for crystalline and amorphized material.

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Citations

May 30, 2019·Physical Chemistry Chemical Physics : PCCP·Remo N WidmerSimon A T Redfern
Aug 1, 2020·Frontiers in Bioengineering and Biotechnology·Yangxin WangChangzhu Wu
Oct 24, 2020·Dalton Transactions : an International Journal of Inorganic Chemistry·César L Ruiz-ZambranaJoaquín Coronas
Oct 28, 2020·Nature Materials·Marco Faustini
Apr 28, 2021·Chemical Communications : Chem Comm·Yurun MiaoMichael Tsapatsis
Jul 10, 2021·The Journal of Physical Chemistry Letters·Tianpei GeQun Xu
Jan 20, 2022·Chemical Reviews·Nattapol Ma, Satoshi Horike

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