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Covalent organic framework nanosheets: preparation, properties and applications

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Abstract

Covalent organic frameworks (COFs) are crystalline and porous materials with bi- or three-dimensional structures built up by connecting their molecular precursors by dynamic covalent bonds. Using bottom-up or top-down strategies, bi-dimensional COFs can be obtained as single- or few-layer materials, thus enlarging the family of 2D-materials based on graphene. The main advantage of 2D-materials based on COFs is the fact that they can be chemically designed, thus allowing the formation of á la carte materials with well-designed functionalities including their size and features of their pores. The aim of this perspective review is to illustrate in a rational way the current state-of-the-art in the field of COF nanosheet formation using the two general approaches of material nano-structuring. This article reviews a selected collection of samples that illustrates the essential concepts, strategies of preparation following the two general approaches, bottom-up and top-down, and a selection of COF nanolayers showing seminal properties and potential material applications. Finally, we provide some perspectives of this novel research field.

Graphical abstract: Covalent organic framework nanosheets: preparation, properties and applications

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Article information


Submitted
16 Dec 2019
First published
17 Mar 2020

Chem. Soc. Rev., 2020, Advance Article
Article type
Tutorial Review

Covalent organic framework nanosheets: preparation, properties and applications

D. Rodríguez-San-Miguel, C. Montoro and F. Zamora, Chem. Soc. Rev., 2020, Advance Article , DOI: 10.1039/C9CS00890J

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