Pillar[5]arene-based supramolecular organic frameworks for highly selective CO2-capture at ambient conditions.

Tan, Li-Li; Li, Haiwei; Tao, Yanchun; Zhang, Sean Xiao-An; Wang, Bo; Yang, Ying-Wei · Adv Mater · 2014

basic_science · Level V

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Abstract

Low-density, solid-state, porous supramolecular organic frameworks are constructed using pillarenes. The frameworks have a honeycomb-like structure, permanent porosity, high thermal stability, and selective and reversible sorption properties toward CO2. The exceptionally selective CO2-sorption properties (375/1, 339/1) of one framework over N2 and CH4 indicate potential applications in CO2-capture for post-combustion power plants and natural gas sweetening.