Fabrication of a Hydrogen-Bonded Organic Framework Membrane through Solution Processing for Pressure-Regulated Gas Separation

Shou Feng; Yanxue Shang; Zhikun Wang; Zixi Kang; Rongming Wang; Jianzhuang Jiang; Lili Fan; Weidong Fan; Zhanning Liu; Guodong Kong; Yang Feng; Songqing Hu; Hailing Guo; Daofeng Sun

doi:10.1002/anie.201914548

Fabrication of a Hydrogen-Bonded Organic Framework Membrane through Solution Processing for Pressure-Regulated Gas Separation

Angew Chem Int Ed Engl. 2020 Mar 2;59(10):3840-3845. doi: 10.1002/anie.201914548. Epub 2020 Jan 21.

Authors

Affiliations

¹ College of Science, School of Materials Science and Engineering, China University of Petroleum (East China), Qingdao, Shandong, 266580, PR China.
² Beijing Key Laboratory for Science and Application of Functional Molecular and Crystalline Materials, Department of Chemistry, University of Science and Technology Beijing, Beijing, 100083, China.
³ State Key Laboratory of Heavy Oil Processing, Key Laboratory of Catalysis, China National Petroleum Corp. (CNPC), China University of Petroleum (East China), Qingdao, Shandong, 266580, PR China.

PMID: 31833627
DOI: 10.1002/anie.201914548

Abstract

Ordered and flexible porous frameworks with solution processability are highly desirable to fabricate continuous and large-scale membranes for the efficient gas separation. Herein, the first microporous hydrogen-bonded organic framework (HOF) membrane has been fabricated by an optimized solution-processing technique. The framework exhibits the superior stability because of the abundant hydrogen bonds and strong π-π interactions. Thanks to the flexible HOF structure, the membrane possesses the unprecedented pressure-responsive H₂ /N₂ separation performance. Furthermore, the scratched membrane can be healed by the treatment of solvent vapor, achieving the recovery of separation performance.

Keywords: gas separation; hydrogen-bonded organic frameworks; membranes; pressure regulation; solution processing.

Abstract

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