|author||Chang Seop Hong|
|journal||Chemical Science (Chem. Sci. 2018, 9, 6871.)|
Dong Won Kang(통합과정) Minjung Kang(통합과정)
A hypercrosslinked porous organic polymer was modified by post-oxidation and post-sulfonation to obtain a porous platform with high density of acidic groups. Such acidified material exhibits record high NH3 adsorption capacity per surface area, fast adsorption rate, and recyclability at low desorption temperature. Noticeably, the coating of the polymer with PDMS represents a facile and efficient route to enable both significant improvement of low-pressure NH3 capacity (~40-fold enhancement (0.04 to 1.41 mmol g-1) with respect to non-modified polymer at 500 ppm) and hydrophobicity associated with the selective sorption of NH3 over water vapor (hydrophilic for non-coated material). This material is easy to prepare, cost-effective, and scalable to mass production.
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