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Temperature-Responsive Ionic Liquids: Fundamental Behaviors and Catalytic Applications
Chemical Reviews ( IF 51.4 ) Pub Date : 2017-03-30 00:00:00 , DOI: 10.1021/acs.chemrev.6b00652 Yunxiang Qiao 1 , Wenbao Ma 2 , Nils Theyssen 1 , Chen Chen 2 , Zhenshan Hou 2
Chemical Reviews ( IF 51.4 ) Pub Date : 2017-03-30 00:00:00 , DOI: 10.1021/acs.chemrev.6b00652 Yunxiang Qiao 1 , Wenbao Ma 2 , Nils Theyssen 1 , Chen Chen 2 , Zhenshan Hou 2
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Temperature-responsive ionic liquids (ILs), their fundanmental behaviors, and catalytic applications were introduced, especially the concepts of upper critical solution temperature (UCST) and lower critical solution temperature (LCST). It is described that, during a catalytic reaction, they form a homogeneous mixture with the reactants and products at reaction temperature but separate from them afterward at ambient conditions. It is shown that this behavior offers an effective alternative approach to overcome gas/liquid–solid interface mass transfer limitations in many catalytic transformations. It should be noted that IL-based thermomorphic systems are rarely elaborated until now, especially in the field of catalytic applications. The aim of this article is to provide a comprehensive review about thermomorphic mixtures of an IL with H2O and/or organic compounds. Special focus is laid on their temperature dependence concerning UCST and LCST behavior, including systems with conventional ILs, metal-containing ILs, polymerized ILs, as well as the thermomorphic behavior induced via host–guest complexation. A wide range of applications using thermoregulated IL systems in chemical catalytic reactions as well as enzymatic catalysis were also demonstrated in detail. The conclusion is drawn that, due to their highly attractive behavior, thermoregulated ILs have already and will find more applications, not only in catalysis but also in other areas.
中文翻译：
温度响应离子液体：基本行为和催化应用
介绍了温度响应性离子液体（ILs），其基本行为和催化应用，特别是上限临界溶液温度（UCST）和下限临界溶液温度（LCST）的概念。据描述，在催化反应期间，它们在反应温度下与反应物和产物形成均相混合物，但随后在环境条件下与它们分离。结果表明，这种行为为克服许多催化转化中的气/液-固界面传质限制提供了一种有效的替代方法。应该注意的是，直到现在，特别是在催化应用领域中，很少使用基于IL的热晶系统。本文的目的是提供有关IL与H的热定型混合物的全面综述2 O和/或有机化合物。特别关注它们对UCST和LCST行为的温度依赖性，包括具有常规IL，含金属的IL，聚合的IL以及通过客体-客体络合诱导的热晶行为的系统。还详细说明了在化学催化反应和酶催化中使用热调节IL系统的广泛应用。得出的结论是，由于其高度吸引人的性能，温度调节型离子液体已经并且将会在催化领域以及其他领域得到更多的应用。
更新日期：2017-03-30
中文翻译：
温度响应离子液体：基本行为和催化应用
介绍了温度响应性离子液体（ILs），其基本行为和催化应用，特别是上限临界溶液温度（UCST）和下限临界溶液温度（LCST）的概念。据描述，在催化反应期间，它们在反应温度下与反应物和产物形成均相混合物，但随后在环境条件下与它们分离。结果表明，这种行为为克服许多催化转化中的气/液-固界面传质限制提供了一种有效的替代方法。应该注意的是，直到现在，特别是在催化应用领域中，很少使用基于IL的热晶系统。本文的目的是提供有关IL与H的热定型混合物的全面综述2 O和/或有机化合物。特别关注它们对UCST和LCST行为的温度依赖性，包括具有常规IL，含金属的IL，聚合的IL以及通过客体-客体络合诱导的热晶行为的系统。还详细说明了在化学催化反应和酶催化中使用热调节IL系统的广泛应用。得出的结论是，由于其高度吸引人的性能，温度调节型离子液体已经并且将会在催化领域以及其他领域得到更多的应用。
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