Preorganization and Cooperation for Highly Efficient and Reversible Capture of Low-Concentration CO2 by Ionic Liquids
Preorganization and Cooperation for Highly Efficient and Reversible Capture of Low-Concentration CO2 by Ionic Liquids
复制标题
离子液体高效可逆捕集低浓度CO2的预组织与协同
DOI：
10.1002/anie.201706280
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发表时间：
2017-10-16
影响因子：
16.6
通讯作者：
Wang, Jianji
中科院分区：
文献类型：
--
作者：
Huang, Yanjie;Cui, Guokai;Wang, Jianji
基于预组织和协同的概念，设计了一种新颖的策略，以提高酰亚胺基离子液体对低浓度CO2的上级捕集能力。通过使用这种策略，首次实现了高达22wt%（1.65molmol（-1））的极高重量CO2容量和优异的可逆性（16次循环），从10 vol.%当使用具有预有机化阴离子的离子液体时，通过量子化学计算和光谱研究相结合，这表明，CO2和多个活性中心的预组织阴离子之间的合作相互作用是上级CO2容量和优异的可逆性的驱动力。
A novel strategy based on the concept of preorganization and cooperation has been designed for a superior capacity to capture low-concentration CO2 by imide-based ionic liquids. By using this strategy, for the first time, an extremely high gravimetric CO2 capacity of up to 22wt% (1.65molmol(-1)) and excellent reversibility (16 cycles) have been achieved from 10vol.% of CO2 in N-2 when using an ionic liquid having a preorganized anion. Through a combination of quantum-chemical calculations and spectroscopic investigations, it is suggested that cooperative interactions between CO2 and multiple active sites in the preorganized anion are the driving force for the superior CO2 capacity and excellent reversibility.