Ion transfer across the water|trifluorotoluene interface

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• 作者：Astrid J. Olaya ; Peiyu Ge ; Hubert H. Girault ; ^{hubert.girault@epfl.ch}
• 关键词：Liquid|liquid interfaces ; Trifluorotoluene ; Charge transfer
• 刊名：Electrochemistry Communications
• 出版年：2012
• 期刊代码：29_13882481
• 类别：ch
• 出版时间：June, 2012
• 卷：19
• 期：Complete
• 页码：101-104
• 文件大小：440 K

摘要

This work introduces trifluorotoluene as an alternative organic solvent for studying charge transfer across liquid|liquid interfaces. In comparison with the most popular organic solvents in this field, 1,2-dichloroethane and nitrobenzene, trifluorotoluene is less toxic since it is not considered a carcinogen agent, and offers a larger potential window. When comparing the standard Gibbs energies of ion partition from water to trifluorotoluene with those reported at the water|1,2-dichloroethane and water|nitrobenzene interfaces, linear relationships were found, making easy to extrapolate the Gibbs energy of other ions from these empiric correlations. 1,2-dichloroethane and nitrobenzene can be efficiently replaced by trifluorotoluene for studying charge transfer at liquid|liquid interfaces.