离子液体
共晶体系
乙二醇
化学
氢键
吸收(声学)
摩尔比
分子
有机化学
材料科学
催化作用
复合材料
合金
作者
Yongkang Cao,Xiangping Zhang,Shaojuan Zeng,Yanrong Liu,Haifeng Dong,Chun Deng
摘要
Abstract The emerging of ionic liquids (ILs) provides an efficient and sustainable way to separate and recover NH 3 due to their unique properties. However, the solid or highly viscous ILs are not suitable for traditional scrubbing. Therefore, an effective strategy was proposed by combining the protic ILs (PILs) with acidic H and low viscous ethylene glycol (EG) to form IL‐based deep eutectic solvents (DESs) for NH 3 absorption. The results indicated that these PIL‐based DESs not only have fast absorption rate, but also exhibit exceptional NH 3 capacity and excellent recyclability. The highest mass capacity of 211 mg NH 3 /g DES was achieved by [Im][NO 3 ]/EG with molar ratio of 1:3, and was higher than all the reported ILs and IL‐based DESs, which was originated from multiple hydrogen bonding between acidic H and hydroxyl groups of the DESs and NH 3 . This work will provide useful idea for designing IL‐based solvents for NH 3 separation applications.
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