Electrochemical Impedence Spectroscopy and Steady-State Voltammetry at the Micro- between Two Immiscible Electrolyte Solution

0459746 - ÚFCH JH 2017 RIV CZ eng C - Conference Paper (international conference)
Silver, Barry Richard - Holub, Karel - Mareček, Vladimír
Electrochemical Impedence Spectroscopy and Steady-State Voltammetry at the Micro- between Two Immiscible Electrolyte Solution.
XXXVI. Moderní elektrochemické metody. Sborník přednášek. Ústí nad Labem: Best servis, 2016 - (Navrátil, T.; Fojta, M.; Schwarzová, K.), s. 191-195. ISBN 978-80-905221-4-5.
[Moderní elektrochemické metody /36./. Jetřichovice (CZ), 23.05.2016-27.05.2016]
R&D Projects: GA ČR GA13-04630S
Institutional support: RVO:61388955
Keywords : liquid-liquid interface * ion transport * AC impedance
OECD category: Electrochemistry (dry cells, batteries, fuel cells, corrosion metals, electrolysis)

The kinetic data of simple tetraethylammonium ion transfer across the water/1,2-DCE interface obtained by electrochemical impedance spectroscopy and steady-state voltammetry are compared. It is shown that the geometry of the microcapillary tip region is of critical importance to obtain reliable kinetic data. Quasi-reversible behavior of the ion transfer reaction, corresponding to an apparent standard rate constant of about 0.2 cm s-1, is observed with both experimental methods.

Permanent Link: http://hdl.handle.net/11104/0259910