Ion transfer kinetics at the interface between two immiscible electrolyte solutions supported on a thick-wall micro-capillary. A mini review

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388955%3A_____%2F17%3A00473147" target="_blank" >RIV/61388955:_____/17:00473147 - isvavai.cz</a>
Result on the web
<a href="http://hdl.handle.net/11104/0270313" target="_blank" >http://hdl.handle.net/11104/0270313</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.coelec.2016.11.004" target="_blank" >10.1016/j.coelec.2016.11.004</a>

Result language
angličtina
Original language name
Ion transfer kinetics at the interface between two immiscible electrolyte solutions supported on a thick-wall micro-capillary. A mini review
Original language description
Absence of an agreement on the values of the experimental rate constant of the ion transfer across the interface between two immiscible electrolyte solutions (ITIES) has stimulated the development of a more reliable methodology of kinetic measurements. This communication provides a brief review of our recent kinetic studies of the model tetraethylammonium (TEA+) ion transfer across the water/1,2-dichloroethane interface supported on a thick-wall micro-capillary by electrochemical impedance spectroscopy, noise analysis and steady-state voltammetry, all which give comparable values of the apparent standard rate constant k0 = 0.3–0.7 cm s-1. Similar values of the apparent activation energies, which were evaluated from the temperature dependence of k0 and the diffusion coefficient of TEA+ (cca 13 kJ mol-1), point to the absence of an additional energy barrier for the ion to overcome in the interfacial region. Role of the coupling of the ion motion and thermal corrugations of the interface (solvent protrusions) in the ion transfer kinetics is highlighted. Stochastic effects in the ion transfer kinetics at the nanoscopic ITIES are worth considering.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10405 - Electrochemistry (dry cells, batteries, fuel cells, corrosion metals, electrolysis)

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
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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