High CO<sub>2</sub>-Capture Ability of a Porous Organic Polymer Bifunctionalized with Carboxy and Triazole Groups
作者:Lin-Hua Xie、Myunghyun Paik Suh
DOI:10.1002/chem.201301822
日期:2013.8.26
A new porous organic polymer, SNU‐C1, incorporating two different CO2‐attracting groups, namely, carboxy and triazole groups, has been synthesized. By activating SNU‐C1 with two different methods, vacuum drying and supercritical‐CO2 treatment, the guest‐free phases, SNU‐C1‐va and SNU‐C1‐sca, respectively, were obtained. Brunauer–Emmett–Teller (BET) surface areas of SNU‐C1‐va and SNU‐C1‐sca are 595
合成了一种新的多孔有机聚合物SNU-C1,其中包含两个不同的CO 2吸引基团,即羧基和三唑基团。通过用两种不同的方法(真空干燥和超临界CO 2处理)激活SNU-C1,分别获得了无客体相SNU-C1-va和SNU-C1-sca。SNU-C1-va和SNU-C1-sca的Brunauer-Emmett-Teller(BET)表面积分别为77 K时的N 2吸附等温线估计,分别为595和830 m 2 g -1。在298 K时和1个atm,SNU-C1-va和SNU-C1-sca分别显示出高的CO 2吸收量,分别为2.31 mmol g -1和3.14 mmol g -1,其高水平归因于孔表面暴露出大量极性基团(羧基和三唑)。利用理想吸附溶液理论(IAST),根据单组分气体吸附等温线计算了真空回转吸附中烟气和垃圾填埋气的五个分离参数。数据显示SNU-C1-va和SNU-C1-sca具有出色的CO 2分离能力,即高CO