Nature Communications (Jun 2022)

Assembling covalent organic framework membranes via phase switching for ultrafast molecular transport

  • Niaz Ali Khan,
  • Runnan Zhang,
  • Xiaoyao Wang,
  • Li Cao,
  • Chandra S. Azad,
  • Chunyang Fan,
  • Jinqiu Yuan,
  • Mengying Long,
  • Hong Wu,
  • Mark. A. Olson,
  • Zhongyi Jiang

Journal volume & issue
Vol. 13, no. 1
pp. 1 – 8


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Covalent organic framework (COF) membranes are important in low energy and cost-effective molecular separations but most COF membranes are assembled via a one-step procedure by concurrent polymerization and crystallization which compromises the ordered structure. Here, the authors propose a two-step phase switching strategy for assembling compact and highly crystalline COF membranes decoupling the polymerization and the crystallization process.