Ultralarge Free-Standing Imine-Based Covalent Organic Framework Membranes Fabricated via Compression

  • Jesús Martín-Illán
  • , José Antonio Suárez
  • , Julio Gómez-Herrero
  • , Pablo Ares
  • , Daniel Gallego-Fuente
  • , Youdong Cheng
  • , Dan Zhao
  • , Daniel Maspoch
  • , Félix Zamora*
  • *Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

61 Scopus citations

Abstract

Demand continues for processing methods to shape covalent organic frameworks (COFs) into macroscopic objects that are needed for their practical applications. Herein, a simple compression method to prepare large-scale, free-standing homogeneous and porous imine-based COF-membranes with dimensions in the centimeter range and excellent mechanical properties is reported. This method entails the compression of imine-based COF-aerogels, which undergo a morphological change from an elastic to plastic material. The COF-membranes fabricated upon compression show good performances for the separation of gas mixtures of industrial interest, N2/CO2 and CH4/CO2. It is believed that the new procedure paves the way to a broader range of COF-membranes.

Original languageEnglish
Article number2104643
JournalAdvanced Science
Volume9
Issue number7
DOIs
StatePublished - 4 Mar 2022
Externally publishedYes

Bibliographical note

Publisher Copyright:
© 2022 The Authors. Advanced Science published by Wiley-VCH GmbH.

Keywords

  • aerogels
  • COF-membranes
  • covalent organic frameworks
  • gas mixtures separation
  • porous materials

ASJC Scopus subject areas

  • Medicine (miscellaneous)
  • General Chemical Engineering
  • General Materials Science
  • Biochemistry, Genetics and Molecular Biology (miscellaneous)
  • General Engineering
  • General Physics and Astronomy

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