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N2 adsorption‐desorption isotherm curves of (a) NH2−Ah−Tz COF and (b) Ah−Tz COF at 77 K. The corresponding pore size distribution profile of (c) NH2−Ah−Tz COF and (d) Ah−Tz COF.
Source publication
Tuning the topology of two‐dimensional (2D) covalent organic frameworks (COFs) is of paramount scientific interest but remains largely unexplored. Herein, we present a site‐selective synthetic strategy that enables the tuning of 2D COF topology by simply adjusting the molar ratio of an amine‐functionalized dihydrazide monomer (NH2−Ah) and 4,4′,4′′‐...
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Citations
... Consequently, numerous COF adsorbents with ultrahigh adsorption capability (up to 10.21 g g − 1 ), rapid kinetics, processable forms (e.g., aerogel), and superb recyclability have been constructed [11][12][13][14][15][16][17][18]. In comparison to amorphous adsorbents, COFs offer atomically precise and functionally amenable pore surfaces, which can be ingeniously designed through the judicious selection of organic building blocks or post-synthetic modification of existing COFs [19,20]. This precise tunability of COF pore surfaces permits the establishment of clear structure-function relationships and subtle modulation of their functions [21]. ...
