Issue 10, 2021

A self-assembling, biporous, metal-binding covalent organic framework and its application for gas separation

Abstract

We report a unique synthesis of a nanoporous two-dimensional covalent organic framework (COF) from a single self-assembling monomer. The novel 2D-COF (DPCOF) contains two chemically distinct nanopores, one that can coordinate transition metals and a second more unreactive pore that is approximately the size of small gas molecules. We then demonstrate the synthetic flexibility of the material by coordination of various transition metals into the framework and finally its application as a membrane for degasification and gas separation. Density functional theory (DFT) and molecular mechanics (MM) calculations were used to inform the computational construction of material models, allowing for the interpretation of pXRD data to elucidate the crystallographic structure of the novel materials, including the revelation that disordered monomer vacancies are likely present in the material.

Graphical abstract: A self-assembling, biporous, metal-binding covalent organic framework and its application for gas separation

Supplementary files

Article information

Article type
Paper
Submitted
26 jan 2021
Accepted
07 apr 2021
First published
08 apr 2021
This article is Open Access
Creative Commons BY license

Mater. Adv., 2021,2, 3362-3369

A self-assembling, biporous, metal-binding covalent organic framework and its application for gas separation

V. Spaulding, K. Zosel, P. H. H. Duong, K. D. Li-Oakey, B. A. Parkinson, D. A. Gomez-Gualdron and J. O. Hoberg, Mater. Adv., 2021, 2, 3362 DOI: 10.1039/D1MA00056J

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