Some aspects of impedance measurements at the interface between two immiscible electrolyte solutions in the four-electrode cell

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388955%3A_____%2F15%3A00448362" target="_blank" >RIV/61388955:_____/15:00448362 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1016/j.electacta.2014.12.013" target="_blank" >http://dx.doi.org/10.1016/j.electacta.2014.12.013</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.electacta.2014.12.013" target="_blank" >10.1016/j.electacta.2014.12.013</a>

Result language
angličtina
Original language name
Some aspects of impedance measurements at the interface between two immiscible electrolyte solutions in the four-electrode cell
Original language description
Electrochemical impedance spectroscopy (EIS) was used to study the impedance behaviour of a macroscopic water/1,2-dichloroethane (DCE) interface (0.32 cm2) in a four-electrode cell. Impedance measurements were carried out at the equilibrium electrical potential difference controlled by the partition of the tetraethylammonium (TEA+) ion present in both phases. Impedance data could be fitted to a two-terminal electrical equivalent circuit (EEC) consisting of the Randles EEC with a stray capacitance in parallel, and a stray resistance in series. The change in the distance between the organic reference electrode tip and the interface had only little effect on the value of the double layer capacitance, Warburg impedance and kinetic resistance, unless this distance was extremely short so that the shielding errors causing non-uniform current densities could not be safely avoided. The analysis provided the apparent standard rate constant of the TEA+ ion transfer of about 0.1 cm s1, which agree
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
CG - Electrochemistry
OECD FORD branch
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Project
<a href="/en/project/GA13-04630S" target="_blank" >GA13-04630S: Novel Methodology for the Determination of the Rate of Ion-Transfer Across Liquid/Liquid Interfaces (ITIES)</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2015
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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