Double layer capacitance and conductivity studies of long chain quaternary ammonium electrolytes in supercritical carbon dioxide

被引：18

作者：

Abbott, AP ^{[1
]}

Harper, JC ^{[1
]}

机构：

[1] Univ Leicester, Dept Chem, Leicester LE1 7RH, Leics, England

来源：

PHYSICAL CHEMISTRY CHEMICAL PHYSICS | 1999年 / 1卷 / 05期

关键词：

D O I：

10.1039/a808826h

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

This work investigates the conductivity of tetraalkylammonium tetraarylborates as a function of concentration in supercritical carbon dioxide (sc CO2) at 70 degrees C and 300 bar and compares the ion dissociation constants with those recently measured in cyclohexane. The double layer capacitance is also reported for the first time in a supercritical fluid and found to fit perfectly to a Helmholz model. These data are used to interpret the voltammetric response of a nickel maleonitrile complex at a platinum microelectrode in sc CO2 and cyclohexane.

引用

页码：839 / 841

页数：3

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