Introduction
Coulometry is a quantitative electrochemical analysis based on counting the total electrical charge which flows through the electrochemical cell due to the electrochemical reaction. The solid state coulometry (SEC) can be performed with solid electrolyte cells [1] or gas cells in equilibrium [2]. Most relevant for analytical purposes are cells in which oxygen exchange is measured (OSEC). For this reason solid oxide electrolytes based on stabilized zirconia (ZrO2, e.g., yttria-stabilized zirconia, YSZ), ceria (CeO2, e.g., Ce0.8Gd0.2O2−δ, CGO), or gallates (LaGaO3, e.g., La1−xSrxMgyGa1−yO3−δ, LSGM) are used. Oxygen transport through gastight solid electrolyte membranes of these cells in form of O2- ions is connected with equivalent electron transport in extrinsic circuit. Catalytically active electrode material (Pt) and high temperature of electrochemical cells are preconditions for the fast transport of oxide ions and sufficient high reaction rate of electrode reactions.
Eas...
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
References
Wagner C (1953) Investigations on silver sulfide. J Chem Phys 21:1819–1827
Tretyakov Yu D, Rapp R (1969) Nonstoichiometries und defect structures in pure nickel oxide and lithium ferrite. Trans Met Soc AIME 245:1235
Teske K, Ullmann H, Rettig D (1983) Investigation of the oxygen activity of oxide fuels and fuel-fission product systems by solid electrolyte techniques. Part I: qualification and limitations of the method. J Nucl Mater 116:260–266
Vashook V, Vasylechko L, Zosel J, Gruner W, Ullmann H, Guth U (2004) Crystal structure and electrical conductivity of lanthanum–calcium chromites–titanates La1_xCaxCr1_yTiyO3−δ (x = 0–1, y = 0–1). J Solid State Chem 177:3784–3794
Vashook VV, Tolochko SP, Yushkevich II, Makhnach LV, Kononyuk IF, Altenburg H, Hauck J, Ullmann H (1998) Oxygen nonstoichiometry and electrical conductivity of the solid solutions La2−xSrxNiOy (0<x<0.5). Solid State Ion 110:245–253
Tubandt C (1932) Conductivity and transference numbers in solid electrolytes (in German). In: Wien W, Harms F (eds) Hdb. Exp. Physik XII, part 1 381 et sqq. Leipzig, Germany
Rickert H (1982) Electrochemistry of solids Springer Berlin. New York, Heidelberg
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2014 Springer Science+Business Media New York
About this entry
Cite this entry
Guth, U., Vashook, V. (2014). Oxygen Solid Electrolyte Coulometry. In: Kreysa, G., Ota, Ki., Savinell, R.F. (eds) Encyclopedia of Applied Electrochemistry. Springer, New York, NY. https://doi.org/10.1007/978-1-4419-6996-5_305
Download citation
DOI: https://doi.org/10.1007/978-1-4419-6996-5_305
Published:
Publisher Name: Springer, New York, NY
Print ISBN: 978-1-4419-6995-8
Online ISBN: 978-1-4419-6996-5
eBook Packages: Chemistry and Materials ScienceReference Module Physical and Materials ScienceReference Module Chemistry, Materials and Physics