This article has been reviewed according to Science X's editorial process and policies. Editors have highlighted the following attributes while ensuring the content's credibility:


trusted source


Metal-organic layers: Preparation and applications

Metal-organic layers: Preparation and applications
Graphic Abstract: The review systematically introduced and discussed the preparation and applications of 2D MOLs, based on which the challenges and perspectives in development of 2D MOL materials were put forward. Credit: Science China Press

Metal-organic frameworks (MOFs) made by bridging metal-containing nodes with organic ligands are a type of ordered porous materials. The first case of MOFs reported by Yaghi et al. in 1995 sparked a frenzy in the research on MOFs. The past decade has witnessed the rapid development of such types of materials.

However, because of the limitation on material thickness, their applications in separation, catalysis, and biosensors are inevitably adversely affected. The of two-dimensional (2D) ultrathin MOF nanosheets (also called metal-organic layers (MOLs)) could be an alternative to further enhance or extend the functionalities of MOFs.

In MOLs, active centers are well exposed on the , which facilitates the interaction between vibrant centers and substrate molecules, thus, improving their applications in catalysis, gas separation, and sensing. The MOLs are commonly prepared by the top-down or bottom-up method.

The top-down method uses physical or chemical means to exfoliate bulk MOFs into MOLs, whereas the bottom-up method synthesizes 2D MOLs by constraining the growth of MOLs in the third direction. Both methods have been extensively used to prepare 2D ultrathin MOLs with sub-10 nm thicknesses in the past decade.

In this review, the authors thoroughly introduce and discuss the preparation and applications of the newly emerging 2D MOL materials. First, the authors summarize the two synthesis strategies for preparing 2D MOLs. Then, the authors discuss their in gas separation, catalysis, energy conversion, and sensing and analyze the relationship between their functions and structures. Finally, the authors present the challenges and opportunities for developing MOL materials in future.

The work is published in the journal Science China Materials.

More information: Huifeng Wang et al, Metal-organic layers: Preparation and applications, Science China Materials (2023). DOI: 10.1007/s40843-022-2316-y

Citation: Metal-organic layers: Preparation and applications (2023, February 21) retrieved 3 October 2023 from
This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only.

Explore further

Metal-organic framework nanoribbons


Feedback to editors