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<p>For the storage and transportation of flammable and explosive gases, the adsorption by porous materials alternative to the conventional liquefied or compressed gas storage, represented an energy-efficient and environmentally friendly method. While the ideal porous materials with high uptake, low cost, convenient accessibility, and extraordinary stability are still quite rare. Herein, two robust porous triptycene networks (PTN-66 and PTN-67) were synthesized through Yamamoto coupling reactions. With ultra-high Brunauer-Emmett-Teller (BET) surface area of 4140 m<sup>2</sup> g<sup>-1</sup>, PTN-66 exhibited high uptake capacities for propyne of 668.8 and 1182.9 cm<sup>3</sup> g<sup>-1</sup> at 1 bar/273 and 253 K, respectively, which set new benchmarks for propyne storage. Furthermore, PTN-66 could also be used to separate trace propyne from the propyne/propylene mixture at room temperature.</p>

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Robust triptycene networks with ultrahigh porosity capable of propyne storage and propyne/propylene separation

  • 期刊论文

  • 发表日期：

    2025年6月24日

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  • Hui Ma,
  • Zhifang Wang,
  • Ningning Liu,
  • Ruixue Sun,
  • Zhenjie Zhang,
  • Bien Tan,
  • Chun Zhang

摘要

For the storage and transportation of flammable and explosive gases, the adsorption by porous materials alternative to the conventional liquefied or compressed gas storage, represented an energy-efficient and environmentally friendly method. While the ideal porous materials with high uptake, low cost, convenient accessibility, and extraordinary stability are still quite rare. Herein, two robust porous triptycene networks (PTN-66 and PTN-67) were synthesized through Yamamoto coupling reactions. With ultra-high Brunauer-Emmett-Teller (BET) surface area of 4140 m2 g-1, PTN-66 exhibited high uptake capacities for propyne of 668.8 and 1182.9 cm3 g-1 at 1 bar/273 and 253 K, respectively, which set new benchmarks for propyne storage. Furthermore, PTN-66 could also be used to separate trace propyne from the propyne/propylene mixture at room temperature.