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Updated: Jan 28, 2026

Microfluidic-based Synthesis of Covalent Organic Frameworks COFs: A Tool for Continuous Production of COF Fibers and Direct Printing on a Surface

Microfluidic-based Synthesis of Covalent Organic Frameworks COFs: A Tool for Continuous Production of COF Fibers and Direct Printing on a Surface

Published on: July 10, 2017

Habilitación del apilamiento por desplazamiento rotado en marcos orgánicos covalentes bidimensionales a través de la

Xinkun Ma¹, Wang-Kang Han¹, Haishan Zhu²

¹School of Chemistry, Chemical Engineering and Biotechnology, Nanyang Technological University, Singapore, Singapore.

Angewandte Chemie (International ed. in English)

|January 27, 2026

Abstract:

Tuning the interlayer stacking in 2D covalent organic frameworks (2D COFs) allows unique structural and optoelectronic properties. However, the diversity of 2D COF stacking modes is limited to eclipsed, serrated, and shifted stacking. In this study, we develop a method for constructing COFs with rotated stacking by modulating interlayer electrostatic repulsion. COFs with rotated or eclipsed (AA) stacking are obtained via reactions between triamine and dialdehyde monomers with or without pyridinium substituents. Importantly, the modulation of pyridinium substituents enables the transformation of different stacking modes, as well as the conversion of amorphous to crystalline materials. Moreover, multicomponent-based stacking regulation strategies are found to efficiently mediate photocatalytic hydrogen peroxide production, owing to their tunable photophysical properties. Our findings provide perspectives on leveraging interlayer repulsion to tailor interlayer stacking in 2D COFs, thereby diversifying their topologies and improving their optoelectronic properties.

Palabras clave:

marcos orgánicos covalentes producción de peróxido de hidrógeno repulsión electrostática intercapa fotocatálisis apilamiento rotado

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