Sulfonate-Grafted Porous Polymer Networks for Preferential CO2 Adsorption at Low Pressure

被引：517
作者：
Lu, Weigang [1 ]
Yuan, Daqiang [1 ]
Sculley, Julian [1 ]
Zhao, Dan [2 ]
Krishna, Rajamani [3 ]
Zhou, Hong-Cai [1 ]
机构：
[1] Texas A&M Univ, Dept Chem, College Stn, TX 77842 USA
[2] Argonne Natl Lab, Chem Sci & Engn Div, Argonne, IL 60439 USA
[3] Univ Amsterdam, Vant Hoff Inst Mol Sci, NL-1098 XH Amsterdam, Netherlands
来源：
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2011年 / 133卷 / 45期
基金：
美国国家科学基金会;
关键词：
METAL-ORGANIC FRAMEWORKS; CARBON-DIOXIDE CAPTURE; SEPARATION; ZEOLITES; SILICA; MOFS;
D O I：
10.1021/ja2087773
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
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/N-2 ratio at 295 K and 1 bar revealed that the sulfonate-grafted PPN-6 networks show exceptionally high adsorption selectivity for CO2 over N-2 (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.
引用
收藏
页码：18126 / 18129
页数：4
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