Uncovering the Underlying Mechanisms Governing the Solidlike Layering of Ionic Liquids (ILs) on Mica
Uncovering the Underlying Mechanisms Governing the Solidlike Layering of Ionic Liquids (ILs) on Mica
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揭示云母上离子液体 (IL) 固体分层的潜在机制
DOI：
10.1021/acs.langmuir.9b03865
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发表时间：
2020
期刊：
影响因子：
3.9
通讯作者：
Li Lei
中科院分区：
文献类型：
--
作者：
Wang Yali;Li Lei
在过去的三十年里，人们对il -固体界面的理解取得了重大进展，其中一个关键的发现是il可以在界面上形成固体状层。人们已经认识到，固体- IL界面上的静电力和IL的自组装是IL分层的关键促成因素。然而，对于il的分层结构，不同实验室的研究并不一致；也就是说，固体状层的数量可以在0到~ 60之间，这表明了潜在机制的复杂性和/或存在被忽视的关键参数。在当前的综述中，我们将讨论控制il在云母上分层的潜在机制和关键参数，云母是研究最多的模型固体。首先，我们将介绍不同实验室的实验结果，既有一致的，也有矛盾的，并总结目前对控制机制的理解。然后，我们将讨论可能的关键参数，包括il的结构，表面改性和云母的污染，以及共溶剂影响il的固体状分层。最后，我们将讨论揭示其潜在机制的未来研究方向。
Significant progress has been made in understanding the IL–solid interface in the past three decades, and a key finding is that ILs can form solidlike layers at the interface. It has been recognized that the electrostatic forces at the solid–IL interface and self-assembly of ILs are key enablers of the IL layering. However, regarding the layering structure of ILs, research from different laboratories is not consistent; i.e., the number of solidlike layers could range from 0 to ∼60, indicating the complexity of the underlying mechanisms and/or the existence of overlooked key parameters. In the current review, we will discuss the underlying mechanisms and key parameters governing the layering of ILs on mica, the most studied model solid. First, we will present the experimental findings from various laboratories, both consistent and contradictory ones, and summarize the current understanding of the governing mechanisms. Then, we will discuss the possible key parameters, including the structure of ILs, surface modification and contamination of mica, and cosolvent impacting the solidlike layering of ILs. Finally, we will discuss future research directions in uncovering the underlying mechanisms.