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

Kód výsledku v 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>

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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

Název v anglickém jazyce

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

Popis výsledku anglicky

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

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

CG - Elektrochemie

OECD FORD obor

—

Projekt

<a href="/cs/project/GA13-04630S" target="_blank" >GA13-04630S: Vývoj spolehlivého přístupu k měření rychlostí přenosu iontů přes rozhraní nemísitelných kapalin (ITIES)</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2015

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Electrochimica acta

ISSN

0013-4686

e-ISSN

—

Svazek periodika

179

Číslo periodika v rámci svazku

OCT 2015

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

6

Strana od-do

3-8

Kód UT WoS článku

000362292200002

EID výsledku v databázi Scopus

2-s2.0-84943451683