Literature DB >> 22007926

Sulfonate-grafted porous polymer networks for preferential CO2 adsorption at low pressure.

Weigang Lu1, Daqiang Yuan, Julian Sculley, Dan Zhao, Rajamani Krishna, Hong-Cai Zhou.   

Abstract

A porous polymer network (PPN) grafted with sulfonic acid (PPN-6-SO(3)H) and its lithium salt (PPN-6-SO(3)Li) exhibit significant increases in isosteric heats of CO(2) adsorption and CO(2)-uptake capacities. IAST calculations using single-component-isotherm data and a 15/85 CO(2)/N(2) ratio at 295 K and 1 bar revealed that the sulfonate-grafted PPN-6 networks show exceptionally high adsorption selectivity for CO(2) over N(2) (155 and 414 for PPN-6-SO(3)H and PPN-6-SO(3)Li, respectively). Since these PPNs also possess ultrahigh physicochemical stability, practical applications in postcombustion capture of CO(2) lie well within the realm of possibility.

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Year:  2011        PMID： 22007926     DOI： 10.1021/ja2087773

Source DB:  PubMed          Journal:  J Am Chem Soc        ISSN： 0002-7863            Impact factor:   15.419


  23 in total

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