Ag(I) Ion Functionalized Porous Organic Polymers As a New Platform for Highly Selective Adsorption of Ethylene over Ethane

Journal Article · Wed Jan 01 00:00:00 EST 2014 · Journal of the American Chemical Society

DOI:https://doi.org/10.1021/ja502119z· OSTI ID:1150349

LI, Baiyan ^[1]; Zhang, Yiming ^[1]; Ma, Dingxuan ^[2]; Wu, Zili ^[3]; Ma, Shengqian ^[1]

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1. University of South Florida, Tampa
2. State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, Jilin University
3. ORNL

We report herein a strategy of incorporating air stable Ag(I) ions into water stable, high surface area porous organic polymer (POP) affording significant increase in ethylene uptake capacity and extremely high Qst for ethylene (over 100 kJ/mol at low ethylene load-ing) as illustrated in the context of Ag(I) ion functionalized PAF-1, PAF-1-SO3Ag. IAST calculations using single-component-isotherm data and equimolar ethylene/ethane ratio at 296 K reveal PAF-1-SO3Ag shows exceptionally high ethylene/ethane adsorption selectivi-ty (Sads: 27 to 125), far surpassing benchmark zeolite and any other MOF reported in literature. This alongside excellent water/air stability, high ethylene uptake capacity, and mild regeneration requirements make PAF-1-SO3Ag hold promise for adsorption-based eth-ylene/ethane separations, paving a way to develop Ag(I) ion function-alized POPs as a new platform for highly selective adsorption of eth-ylene over ethane.

• Research Organization: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Center for Nanophase Materials Sciences (CNMS)
• Sponsoring Organization: USDOE Office of Science (SC)
• DOE Contract Number: DE-AC05-00OR22725
• OSTI ID: 1150349
• Journal Information: Journal of the American Chemical Society, Vol. 136, Issue 24; ISSN 0002--7863
• Country of Publication: United States
• Language: English