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Cu(BTC) nanoflakes synthesized in an ionic liquid/water binary solvent and their catalytic properties

Soft Matter, ISSN: 1744-6848, Vol: 18, Issue: 32, Page: 6009-6014
2022
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Article Description

Low-dimensional metal-organic frameworks (MOFs) exhibit enhanced properties compared with three-dimensional (3D) geometry MOFs in many fields. In this work, we demonstrate the synthesis of Cu(BTC) (BTC = benzene-1,3,5-tricarboxylate) nanoflakes in a binary solvent of ionic liquid (IL) and water. Such a MOF architecture has a high surface area and abundant unsaturated coordination metal sites, making them attractive for adsorption and catalysis. For example, in catalyzing the oxidation reactions of a series of alcohols, the Cu(BTC) nanoflakes exhibit a high performance that is superior to Cu(BTC) microparticles synthesized in a conventional solvent. Experimental and theoretical studies reveal that the IL accelerates the crystallization of Cu(BTC), while water plays a role in stripping the Cu(BTC) blocks that are formed at an early stage through its attack on the crystal plane of Cu(BTC). Such an in situ crystallization-exfoliation process that uses an IL/water solvent opens a new route for producing low-dimensional MOFs.

Bibliographic Details

Su, Zhuizhui; Zhang, Jianling; Zhang, Bingxing; Cheng, Xiuyan; Xu, Mingzhao; Sha, Yufei; Wang, Yanyue; Hu, Jingyang; Zheng, Lirong; Han, Buxing

Royal Society of Chemistry (RSC)

Chemistry; Physics and Astronomy

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