Phase-boundary potential across the nonpolarized interface between the room-temperature molten salt and water
Phase-boundary potential across the nonpolarized interface between the room-temperature molten salt and water
复制标题
DOI：
10.1016/s1388-2481(03)00013-4
复制
发表时间：
2003-02-01
影响因子：
5.4
通讯作者：
Iwami, Y
中科院分区：
文献类型：
--
作者：
Kakiuchi, T;Tsujioka, N;Iwami, Y
通过对双（三氟甲基磺酰基）酰亚胺和双（五氟乙基磺酰基）酰亚胺的1-辛基-3-甲基咪唑盐的电位分析，从理论上阐明并实验证实了水相（W）和微溶于W的室温熔盐（RTMS）之间界面上的相界电位。跨界面的相边界电位由构成RTMS的阳离子和阴离子的分配决定，并且几乎不受惰性电解质（例如W中的NaCl）的影响。实验研究的接口是非极化字符，在相边界电位是能斯特相对于W的离子构成的RTMS的活动。通过改变这些离子在W中的浓度，相边界电位可以变化超过300 mV。(C)2003 Elsevier Science B. V.保留所有权利。
The phase-boundary potential across the interface between an aqueous phase (W) and a room-temperature molten salt (RTMS) that is sparingly soluble in W has been theoretically elucidated and experimentally confirmed using potentiometry for the RTMSs, 1-octyl-3-methylimidazolium salts of bis(trifluoromethylsulfonyl) imide and of bis(pentafluoroethylsulfonyl) imide. The phase-boundary potential across the interface is determined by the partition of the cation and anion constituting the RTMS and is little affected by the presence of indifferent electrolytes, such as NaCl in W. The interfaces experimentally studied are of nonpolarized character, in that the phase-boundary potential is nernstian with respect to the activities in W of the ions constituting the RTMS. By changing the concentration of these ions in W, the phase-boundary potential can be varied more than 300 mV. (C) 2003 Elsevier Science B.V. All rights reserved.