A chemically stable cucurbit[6]uril-based hydrogen-bonded organic framework for potential SO2/CO2 separation

Jun Liang; Shanghua Xing; Philipp Brandt; Alexander Nuhnen; Carsten Schlüsener; Yangyang Sun; Christoph Janiak

doi:10.1039/D0TA07457H

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A chemically stable cucurbit[6]uril-based hydrogen-bonded organic framework for potential SO₂/CO₂ separation†

Jun Liang,

^ab Shanghua Xing,^ab Philipp Brandt,

^b Alexander Nuhnen,^b Carsten Schlüsener,

^b Yangyang Sun

^b and Christoph Janiak

*^ab

Author affiliations

* Corresponding authors

^a Hoffmann Institute of Advanced Materials, Shenzhen Polytechnic, Liuxian Blvd, Nanshan District, Shenzhen 7098, China
E-mail: janiak@uni-duesseldorf.de

^b Institut für Anorganische Chemie und Strukturchemie, Heinrich-Heine-Universität Düsseldorf, Universitätsstraße 1, Düsseldorf 40225, Germany

Abstract

A cucurbit[6]uril cage-based hydrogen-bonded organic framework (HOF) shows high capacity of SO₂ capture (up to 4.98 mmol g⁻¹ at 1 bar and 293 K), high SO₂/CO₂ selectivity, good chemical stability toward dry SO₂, and outstanding cycling performance. The preferential adsorption sites on the cage of the HOF are revealed by DFT calculations and FT-IR.

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Article information

DOI: https://doi.org/10.1039/D0TA07457H
Article type: Communication
Submitted: 30 Jul 2020
Accepted: 21 Sep 2020
First published: 22 Sep 2020

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J. Mater. Chem. A, 2020,8, 19799-19804

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A chemically stable cucurbit[6]uril-based hydrogen-bonded organic framework for potential SO₂/CO₂ separation

J. Liang, S. Xing, P. Brandt, A. Nuhnen, C. Schlüsener, Y. Sun and C. Janiak, J. Mater. Chem. A, 2020, 8, 19799 DOI: 10.1039/D0TA07457H

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Journal of Materials Chemistry A