[HTML][HTML] Impedance of SOFC electrodes: A review and a comprehensive case study on the impedance of LSM: YSZ cathodes

J Nielsen, J Hjelm - Electrochimica Acta, 2014 - Elsevier
It was shown through a comprehensive impedance spectroscopy study that the impedance
of the classic composite LSM: YSZ (lanthanum strontium manganite and yttria stabilized …

Low‐temperature superionic conductivity in strained yttria‐stabilized zirconia

M Sillassen, P Eklund, N Pryds… - Advanced Functional …, 2010 - Wiley Online Library
Very high lateral ionic conductivities in epitaxial cubic yttria‐stabilized zirconia (YSZ)
synthesized on single‐crystal SrTiO3 and MgO substrates by reactive direct current …

Ionic conductivity and relaxations in ZrO2–Y2O3 solid solutions

A Pimenov, J Ullrich, P Lunkenheimer, A Loidl… - Solid State Ionics, 1998 - Elsevier
We have investigated the electric properties of ionically conducting ZrO2–Y2O3 ceramics
and single crystals with molar concentrations ranging from 4 mol% Y2O3 to 12 mol% Y2O3 …

Polarization and stability of La2NiO4+ δ in comparison with La0. 6Sr0. 4Co0. 2Fe0. 8O3− δ as air electrode of solid oxide electrolysis cell

SJ Kim, KJ Kim, AM Dayaghi, GM Choi - International Journal of Hydrogen …, 2016 - Elsevier
Solid oxide electrolysis cells (SOECs) are promising due to high electrolysis efficiency, but at
high operating temperature T OP≥ 800° C, they suffer from component inter-diffusion and …

On the use of the constant phase element to understand variation in grain boundary properties

BE McNealy, JL Hertz - Solid State Ionics, 2014 - Elsevier
The impedance of polycrystalline electrolytes with heterogeneous grain boundary properties
was studied using a two-dimensional numerical simulation. Simulated impedance spectra …

Improving electronic conductivity and oxygen reduction activity in Sr-doped lanthanum cobaltite thin films: Cobalt valence state and electronic band structure effects

Z Zhu, Y Shi, C Aruta, N Yang - ACS Applied Energy Materials, 2018 - ACS Publications
Electronic conductivity and oxygen reduction activity are investigated in high quality La1–x
Sr x CoO3-δ (from x= 0 to x= 0.8) thin films with regard to their use as cathodes for …

Enthalpy of formation of cubic yttria-stabilized zirconia

TA Lee, A Navrotsky, I Molodetsky - Journal of Materials Research, 2003 - cambridge.org
Oxide melt solution calorimetric measurements were made to determine the enthalpy of
formation of cubic-yttria-stabilized zirconia (c-YSZ) with respect to the oxides m-ZrO2 and C …

Nondestructive evaluation of thermal barrier coatings using impedance spectroscopy

F Yang, P **ao - International Journal of Applied Ceramic …, 2009 - Wiley Online Library
This article reviews previous studies on nondestructive evaluation of thermal barrier
coatings (TBCs) using impedance spectroscopy (IS). IS or electrochemical impedance …

Space-charge concepts on grain boundary impedance of a high-purity yttria-stabilized tetragonal zirconia polycrystal

JS Lee, DY Kim - Journal of Materials Research, 2001 - cambridge.org
A detailed impedance analysis using the brick-layer model is performed on a high-purity
yttria-stabilized tetragonal zirconia polycrystal (Y-TZP). Space-charge impedance is …

Ionic Mobilities and Association Energies from an Analysis of Electrical Impedance of ZrO2–Y2O3 Alloys

J Luo, DP Almond, R Stevens - Journal of the American …, 2000 - Wiley Online Library
The dc conductivities of ZrO2–Y2O3 ceramic alloys (in the range 3–12 mol% of Y2O3) have
been obtained from ac impedance measurements at temperatures between 250° and 370° …