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首页> 外文期刊>Journal of Electroanalytical Chemistry: An International Journal Devoted to All Aspects of Electrode Kinetics, Interfacial Structure, Properties of Electrolytes, Colloid and Biological Electrochemistry >Liquid junction potential between electrolyte solutions in different solvents: further study on the component related to ion solvation
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Liquid junction potential between electrolyte solutions in different solvents: further study on the component related to ion solvation

机译：不同溶剂中电解质溶液之间的液结电势：关于离子化相关成分的进一步研究

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The liquid junction potential (UP) between electrolyte solutions in different solvents was studied by paying attention to the component related to ion solvation (component (b)). The actual variation in component (b) was obtained as the variation in corrected emfs (E-corrected) of a cell and compared with the theoretical values (E-j(b)(calc)). New data for the E-corrected-E-j(b)(calc) relation were obtained using amphiprotic ethylene glycol (EG) and formamide (FA) as solvent on one side of the junctions. The E-corrected-E-j(b)(calc) relations at miscible FA/ and EG/organic solvent junctions were nearly linear with average slopes of 0.32 and 0.33, respectively, in contrast to 0.46 for H2O/organic solvents, 0.26 for MeOH/aprotic solvents, and similar to0 between two aprotic solvents. On the other hand, for partially miscible FA/ and EGitrobenze (NB), the slopes were 0.70 and 0.84, respectively, approaching unity with the decrease in miscibility. Some factors that may influence component (b) were pointed out and were discussed in detail by considering the phenomena at the junctions. Additional data that support the method to estimate the actual values of component (b) by (slope) x E-j(b)(calc) were obtained. By appropriate corrections for component (b), the component due to solvent-solvent interactions was shown to be electrolyte-independent also at the junctions containing EG, FA and N-methylformamide on one side. (C) 2004 Published by Elsevier B.V.
机译：通过关注与离子溶剂化有关的组分（组分（b）），研究了在不同溶剂中的电解质溶液之间的液结电位（UP）。获得组分（b）的实际变化，作为单元的校正电动势（经E校正）的变化，并将其与理论值（E-j（b）（calc））进行比较。使用两性乙二醇（EG）和甲酰胺（FA）作为溶剂在连接的一侧获得了E校正的E-j（b）（calc）关系的新数据。在易混溶的FA /和EG /有机溶剂连接处进行E校正的Ej（b）（calc）关系几乎呈线性，平均斜率分别为0.32和0.33，而H2O /有机溶剂为0.46，MeOH /为0.26非质子传递溶剂，与两个非质子传递溶剂之间的相似。另一方面，对于部分混溶的FA /和EG /硝基苯（NB），斜率分别为0.70和0.84，随着混溶性的降低，趋近于1。指出了可能影响组分（b）的一些因素，并考虑了接合处的现象进行了详细讨论。获得了其他数据，这些数据支持通过（斜率）x E-j（b）（calc）估算组分（b）实际值的方法。通过对组分（b）的适当校正，由于溶剂-溶剂相互作用而产生的组分在一侧包含EG，FA和N-甲基甲酰胺的连接处也显示出与电解质无关。 （C）2004由Elsevier B.V.发布

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