Lu, Weigang ; Yuan, Daqiang ; Sculley, Julian ; Zhao, Dan ; Krishna, Rajamani ; Zhou, Hong-Cai (2011) Sulfonate-grafted porous polymer networks for preferential CO2 adsorption at low pressure Journal of the American Chemical Society, 133 (45). pp. 18126-18129. ISSN 0002-7863
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Official URL: http://pubs.acs.org/doi/abs/10.1021/ja2087773
Related URL: http://dx.doi.org/10.1021/ja2087773
Abstract
A porous polymer network (PPN) grafted with sulfonic acid (PPN-6-SO3H) and its lithium salt (PPN-6-SO3Li) exhibit significant increases in isosteric heats of CO2 adsorption and CO2-uptake capacities. IAST calculations using single-component-isotherm data and a 15/85 CO2/N2 ratio at 295 K and 1 bar revealed that the sulfonate-grafted PPN-6 networks show exceptionally high adsorption selectivity for CO2 over N2 (155 and 414 for PPN-6-SO3H and PPN-6-SO3Li, respectively). Since these PPNs also possess ultrahigh physicochemical stability, practical applications in postcombustion capture of CO2 lie well within the realm of possibility.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to American Chemical Society. |
| ID Code: | 93756 |
| Deposited On: | 25 Jun 2012 13:12 |
| Last Modified: | 25 Jun 2012 13:12 |
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