That society increasingly depending upon gases as commodities and fuels means that the “age of gas” has dawned, creating with it an urgent demand for designing energy-efficient porous materials to address challenges in gas separations, sensing, and storage. However, that there is in general a trade-off between uptake capacity and selectivity of porous materials creates a major barrier toward gas separation/purification through physisorption.1 Our study addresses this challenge in the context of hydrocarbon separation, including alkyne capture from olefin and C4 olefins separation, critical steps in the production of polymer-grade olefins including ethylene, propylene, and 1, 3-butadiene.2-4 Others include sulfur dioxide and carbon dioxide separation.5,6 We reveal that pore chemistry and pore size control in anion-pillared hybrid ultramicroporous materials enables the exploitation of supramolecular chemistry of gases to set new benchmarks for selectivity and that these benchmarks are accompanied by high uptake.1 The separation performances of anion-pillared hybrid ultramicroporous materials were evaluated by static gas adsorption and dynamic breakthrough experiments. The interaction mechanism between gas molecules and hybrid porous materials were investigated by experiments and modeling studies.

Pore chemistry and size control in anion-pillared hybrid porous materials for highly efficient gas separation

2019 Spring National Meeting

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