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Porous aromatic frameworks with anion-templated pore apertures serving as polymeric sieves

Author

Listed:
  • Ye Yuan

    (State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, Jilin University)

  • Fuxing Sun

    (State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, Jilin University)

  • Lina Li

    (State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, Jilin University)

  • Peng Cui

    (State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, Jilin University)

  • Guangshan Zhu

    (State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, Jilin University)

Abstract

Owing to environmental pollution and energy depletion, efficient separation of energy gases has attracted widespread attention. Low-cost and efficient adsorbents for gas separation are greatly needed. Here we report a family of quaternary pyridinium-type porous aromatic frameworks with tunable channels. After carefully choosing and adjusting the sterically hindered counter ions via a facile ion exchange approach, the pore diameters are tuned at an angstrom scale in the range of 3.4–7 Å. The designed pore sizes may bring benefits to capturing or sieving gas molecules with varied diameters to separate them efficiently by size-exclusive effects. By combining their specific separation properties, a five-component (hydrogen, nitrogen, oxygen, carbon dioxide and methane) gas mixture can be separated completely. The porous aromatic frameworks may hold promise for practical and commercial applications as polymeric sieves.

Suggested Citation

  • Ye Yuan & Fuxing Sun & Lina Li & Peng Cui & Guangshan Zhu, 2014. "Porous aromatic frameworks with anion-templated pore apertures serving as polymeric sieves," Nature Communications, Nature, vol. 5(1), pages 1-8, September.
    • Handle: RePEc:nat:natcom:v:5:y:2014:i:1:d:10.1038_ncomms5260
    DOI: 10.1038/ncomms5260
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