A Simultaneous Study of Kinetics and Thermodynamics of Anion Transfer across the Liquid/Liquid Interface by Means of Fourier Transformed Large-Amplitude Square-Wave Voltammetry at Three-Phase Electrode

Langmuir ◽  
2010 ◽  
Vol 26 (24) ◽  
pp. 19209-19216 ◽  
Author(s):  
Haiqiang Deng ◽  
Xinjian Huang ◽  
Lishi Wang
Keyword(s):  
Large Amplitude ◽  
Square Wave Voltammetry ◽  
Liquid Interface ◽  
Kinetics And Thermodynamics ◽  
Square Wave ◽  
Wave Voltammetry ◽  
Three Phase ◽  
Simultaneous Study ◽  
Anion Transfer

Square-Wave Voltammetry of Decamethylferrocene at the Three-Phase Junction Organic Liquid/Aqueous Solution/Graphite

2001 ◽  
Vol 66 (3) ◽  
pp. 434-444 ◽  
Author(s):  
Šebojka Komorsky-Lovrić ◽  
Milivoj Lovrić ◽  
Fritz Scholz
Keyword(s):  
Aqueous Solution ◽  
Linear Relationship ◽  
Square Wave Voltammetry ◽  
Aqueous Electrolyte ◽  
Graphite Electrode ◽  
Organic Liquid ◽  
Aqueous Electrolytes ◽  
Square Wave ◽  
Wave Voltammetry ◽  
Three Phase

Drops of nitrobenzene and 1,2-dichloroethane with 0.1 M decamethylferrocene (dmfc) are attached to the surface of a paraffin-impregnated graphite electrode and immersed into various aqueous electrolytes. The oxidation of dmfc and the reduction of dmfc+ cation are enabled by simultaneous transfers of anions between the aqueous electrolyte and the organic solvents. Square-wave voltammetry of this reaction is reported. A linear relationship was observed between the peak potentials of dmfc and the standard Galvani potential differences of the anions. The influence of the anion concentration on this relation is explained.

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