Low-viscous fluorine-substituted phenolic ionic liquids with high performance for capture of CO2
Low-viscous fluorine-substituted phenolic ionic liquids with high performance for capture of CO2
复制标题
低粘度氟取代酚类离子液体，具有高性能 CO2 捕获能力
DOI：
10.1016/j.cej.2015.03.052
复制
发表时间：
2015-08
影响因子：
15.1
通讯作者：
Xing-Bang Hu
中科院分区：
文献类型：
--
作者：
Xiao-Min Zhang;Kuan Huang;Shuang Xia;Yong-Le Chen;You-Ting Wu;Xing-Bang Hu
合成了3种含氟取代的酚醛离子液体，即2-氟苯酸四丁基膦([P4444][2-F-pho])、3-氟苯酸四丁基膦([P4444][3-F-pho])和4-氟苯酸四丁基膦([P4444][4-F-pho])。用核磁共振氢谱、核磁共振碳谱、傅立叶变换红外光谱和电喷雾质谱对制备的离子液体进行了表征，并测定了它们的密度、粘度和分解温度等物理性质。三种含氟酚类离子液体在303.2 K时的粘度均不小于64.8cP，因此在313.2 K时吸收CO_2的速率很快，吸附平衡时间在230K以内。在1.0bar和313.2 K时，[P4444][2-F-pho]、[P4444][3-F-pho]、[P4444][4-F-pho]的CO_2吸收容量分别高达0.673、0.741、0.842。此外，离子液体进行了五次循环，对二氧化碳的吸收能力没有明显的损失。用量子化学计算和光谱研究方法研究了酚类离子液体与CO2分子的相互作用。
Three fluorine-substituted phenolic ionic liquids, namely tetrabutylphosphonium 2-fluorophenolate ([P4444][2-F-PhO]), tetrabutylphosphonium 3-fluorophenolate ([P4444][3-F-PhO]), and tetrabutylphosphonium 4-fluorophenolate ([P4444][4-F-PhO]), were synthesized in this work. The ionic liquids prepared were characterized by 1H NMR, 13C NMR, FT-IR, and ESI-MS spectroscopies and their physical properties including densities, viscosities and decomposition temperatures were also determined. The viscosities of the three fluorine-substituted phenolic ionic liquids are not more found to be less than 64.8 cP at 303.2 K..As a result, the rate of CO2 absorption is very fast and the absorption equilibrium time is within 230 s at 313.2 K. The CO2-absorption capacity of [P4444][2-F-PhO], [P4444][3-F-PhO], [P4444][4-F-PhO] at 1.0 bar and 313.2 K are as high as 0.673, 0.741, 0.842 in molar ratio, respectively. Furthermore, the ionic liquids.were carried out for five cycles with no obvious loss in the absorption capacity of CO2. Quantum chemical calculations and spectrum study are also used to investigate the interaction between phenolic ionic liquids and CO2 molecules.
登录
查看更多内容
影响因子：
4.2
作者：
G. Hong;J. Jacquemin;P. Husson;M. Gomes;Maggel Deetlefs;M. Nieuwenhuyzen;O. Sheppard;C. Hardacre
通讯作者：
G. Hong;J. Jacquemin;P. Husson;M. Gomes;Maggel Deetlefs;M. Nieuwenhuyzen;O. Sheppard;C. Hardacre
影响因子：
3.7
作者：
Mortazavi-Manesh, Soheil;Satyro, Marco A.;Marriott, Robert A.
通讯作者：
Marriott, Robert A.
影响因子：
3
作者：
D. Koster;R. F. Trimble
通讯作者：
D. Koster;R. F. Trimble
影响因子：
4.9
作者：
Huddleston, JG;Willauer, HD;Rogers, RD
通讯作者：
Rogers, RD
影响因子：
4.2
作者：
Carlisle, Trevor K.;Bara, Jason E.;Gin, Douglas L.
通讯作者：
Gin, Douglas L.