4.8 Article

Building multiple adsorption sites in porous polymer networks for carbon capture applications

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ENERGY & ENVIRONMENTAL SCIENCE
卷 6, 期 12, 页码 3559-3564

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ROYAL SOC CHEMISTRY
DOI: 10.1039/c3ee42226g

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  1. U.S. Department of Energy as part of the Center for Gas Separations Relevant to Clean Energy Technologies, an Energy Frontier Research Center
  2. U.S. DOE, Office of Science, Office of Basic Energy Sciences [DE-SC0001015, DE-AR0000073]
  3. National Science Foundation [NSF CBET-0930079]
  4. Welch Foundation [A-1725]

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IAST calculations reveal that sulfonate ammonium salt grafting renders porous polymer networks (PPN-6-SO3NH4) with exceptionally high adsorption selectivity for CO2 over N-2 and CO2 over CH4. Breakthrough experiments confirm the high CO2 adsorption capacity (1.7 mmol g(-1), 75 mg g(-1)) by feeding 15% CO2 balanced with N-2 at 295 K and 1 bar.

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