BICONTINUOUS MICROEMULSIONS AS MEDIA FOR ELECTROCHEMICAL STUDIES

被引：69

作者：

IWUNZE, MO ^{[1
]}

SUCHETA, A ^{[1
]}

RUSLING, JF ^{[1
]}

机构：

[1] UNIV CONNECTICUT,DEPT CHEM U60,STORRS,CT 06269

来源：

ANALYTICAL CHEMISTRY | 1990年 / 62卷 / 06期

关键词：

D O I：

10.1021/ac00205a021

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Biocontlnuous microemulsions of dldodecykldlmethylammonium bromide (DDAB)/dodecane/water were explored as media for voliammetrlc reductions and oxidations of ruthenium(III) hexaammine, ferrocyanlde, ferrocene, cob(II)alamin, and several polycycllc aromatic hydrocarbons (PAHs). These clear microemulsions are conductive and are believed to contain a dynamic extended network of Interconnected water tubules. Agreement of simulated and experimental voltammetric data shows that electrochemical theory for homogeneous media is followed to a good approximation in DDAB microemulsions. Diffusion of electroactlve solutes did not reflect the high bulk viscosities of the microemulsions. Non-polar molecules and ions diffuse as If they were in neat oil or aqueous media, respectively, and voltammograms with good signal to noise ratio are obtained. Reductions of PAHs in the microemulsions occurred by an ECE-type pathway, with nearly reversible one-electron reductions achieved at high scan rates. © 1990, American Chemical Society. All rights reserved.

引用

页码：644 / 649

页数：6

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