Ionic liquids and plastic crystals based on tertiary sulfonium and bis(fluorosulfonyl)imide
Ionic liquids and plastic crystals based on tertiary sulfonium and bis(fluorosulfonyl)imide
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基于叔锍和双(氟磺酰基)亚胺的离子液体和塑料晶体
DOI：
10.1016/j.electacta.2009.10.019
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发表时间：
2010-01-01
影响因子：
6.6
通讯作者：
Zhou, Zhi-Bin
中科院分区：
文献类型：
--
作者：
Han, Hong-Bo;Nie, Jin;Zhou, Zhi-Bin
基于相对较小的叔锍阳离子（[(RRRS)-R-1-R-2-S-3](+)，其中R-1、R-2、R-3 = CH3或C2H5、R-3 = CH2CH2OCH3、CH2CH2COOCH3、CH2CH2CN）和双（氟磺酰基）亚胺的新型低熔点、低粘度、疏水性离子液体系列(FSI-)阴离子已被制备并表征。这些盐的重要物理化学和电化学性质，如熔点、玻璃化转变、粘度、密度、离子电导率、热稳定性和电化学稳定性，均已确定。讨论了叔锍阳离子的结构变化对上述理化性质的影响。在这些新盐中，其中一些盐表现出低熔点、低粘度和高电导率等理想特性，被选为能源设备中电解质的潜在候选者，其中两种盐是离子塑性晶体。 (c) 2009 Elsevier Ltd. 保留所有权利。
A new series of low-melting, low-viscosity, hydrophobic ionic liquids based on relatively small tertiary sulfonium cations ([(RRRS)-R-1-R-2-S-3](+), wherein R-1, R-2, R-3 = CH3 or C2H5, R-3 = CH2CH2OCH3, CH2CH2COOCH3, CH2CH2CN) and bis(fluorosulfonyl)imide (FSI-) anion have been prepared and characterized. The important physicochemical and electrochemical properties of these salts, such as melting point, glass transition, viscosity, density, ionic conductivity, thermal and electrochemical stability, have been determined. The influence of structure variation in the tertiary sulfonium cations on the above physicochemical properties is discussed. Among these new salts, some of them show the desirable properties including low-melting points, low viscosities, and high conductivities, to be selected as potential candidates as electrolytes in energy devices, and two salts are ionic plastic crystals. (c) 2009 Elsevier Ltd. All rights reserved.