On the impedance of galvanic cells: XIII. Characteristics of streaming mercury electrodes
โ Scribed by A. B. Ijzermans; J. H. Sluyters
- Publisher
- Elsevier Science
- Year
- 2010
- Tongue
- English
- Weight
- 426 KB
- Volume
- 84
- Category
- Article
- ISSN
- 0165-0513
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๐ SIMILAR VOLUMES
## Abstract It is shown both by calculation and experimentally that in a galvanic cell with two plane electrodes, through which an alternating current flows, the concentration waves interfere if the distance of the electrodes is of the order of a wave length.
The discharge of K+ ions at the dropping mercury electrode (dme) in 1 M KC1 solution at 25ยฐC has been studied by means of analysis of the electrode impedance at different frequencies, using the complex plane method. It is shown that the electrode reaction is almost entirely diffusioncontrolled, but
## Abstract Impedances of galvanic cells are treated as complex quantities and graphical methods for the determination of reaction rate constants of the redox reactions, double layer capacities, ohmic resistances and diffusion constants are proposed.
## Abstract If, at one particular frequency, the electrode impedance is plotted in the complex impedance plane at varying bulk concentrations C\*ox and C\*RED, keeping C\*ox = C\*RED, a circle is obtained. Moreover, through one of the points measured a semicircle can be drawn with its centre on the