Abstract: Numerical Prediction of Electrical Conductivity of Porous Composite Materials: LSM-YSZ Case Study

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F22%3A43924521" target="_blank" >RIV/60461373:22310/22:43924521 - isvavai.cz</a>
Result on the web
—
DOI - Digital Object Identifier
—

Result language
angličtina
Original language name
Abstract: Numerical Prediction of Electrical Conductivity of Porous Composite Materials: LSM-YSZ Case Study
Original language description
Composite of lanthanum strontium manganite and yttria-stabilized zirconia (LSM-YSZ) is the state-of-the-art oxygen electrode material in the solid oxide cells due to its excellent electro-catalytic properties and long lifespan. While the LSM is excellent electronic conductor and electro-catalyst, the content of ionically conductive YSZ increases the amount of electrochemically active sites, the triple phase boundary, thus increasing the overall electrode electro-catalytic performance. However, it also considerably lowers the total electrical conductivity. This applies for all ceramic-based composites. We developed a unique universal equivalent circuit network model for prediction of electrochemical properties of composite electrodes. A set of porous LSM-YSZ samples was prepared to attain the validation data for our model. The data included the impedance behavior of the samples with respect to their electrical conductivity and polarization resistance. The model showed good qualitative and quantitative agreement in terms of electrical conductivity prediction.
Czech name
—
Czech description
—

Type
O - Miscellaneous
CEP classification
—
OECD FORD branch
10405 - Electrochemistry (dry cells, batteries, fuel cells, corrosion metals, electrolysis)

Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Similar results(10)