Issue 46, 2023

Construction of microporous covalent organic frameworks for high gas uptake capacities

Abstract

Covalent organic frameworks (COFs) show excellent stability, high porosity, and a designable skeleton, making them an ideal platform for gas capture. Here, two microporous COFs (M-COFs) were synthesized using short building blocks, which were advantageous for gas uptake through the pores. Additionally, the presence of abundant oxygen and nitrogen atoms on the walls of M-COFs further improved the gas uptake ability through weak interactions. Notably, the M-COFs exhibited high gas capture values (carbon dioxide: 72.5 cm3 g−1; methane: 35.2 cm3 g−1; iodine: 4.74 g g−1). This design has opened a new pathway for enhancing gas capture, hence addressing urgent environmental issues.

Graphical abstract: Construction of microporous covalent organic frameworks for high gas uptake capacities

Supplementary files

Article information

Article type
Paper
Submitted
02 Oct 2023
Accepted
31 Oct 2023
First published
13 Nov 2023

New J. Chem., 2023,47, 21485-21489

Construction of microporous covalent organic frameworks for high gas uptake capacities

C. Zhang, Y. Zhao, J. Li, Y. Zhang, D. Wei, C. Xing and X. Luo, New J. Chem., 2023, 47, 21485 DOI: 10.1039/D3NJ04595A

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