Ce0.8Gd0.2O2 modification on La0.6Sr0.4Co0.2Fe0.8O3 cathode for improving a cell performance in intermediate temperature solid oxide fuel cells

In Situ Foaming of Porous (La0.6Sr0.4)0.98 (Co0.2Fe0.8) O3−δ (LSCF) Cathodes for Solid Oxide Fuel Cell Applications

“…The polarization resistance of the unfoamed cathode was measured to be 0.36 Ω cm 2 at 800°C under 0 mA current. This value is similar to that reported in literature for LSCF composite cathodes at 800°C under 0 mA current (0.45 Ω cm 2 and 0.4 Ω cm 2 ). The total polarization for the entire symmetrical cell with a foamed cathode displayed a combined electrode polarization of 0.16 Ω cm 2 (thus, a singular cathode polarization of 0.08Ω cm 2 ) at 800°C.…”

Chemical Preparation Routes and Lowering the Sintering Temperature of Ceramics

“…The ceramic route is inexpensive and the chemical routes are suitable for the preparation of fine powders (for shaping, screen printing, laser sintering, etc.) or films directly [17,35,36,106,131,132,172,[259][260][261][262][263][264][265]. The firing temperatures must be similar.…”

“…It is necessary to lower the temperature of sintering of certain materials. This is especially true for additional materials such as the intermediate layer acting as a diffusion barrier which should be added between the electrolyte layer and the electrodes to prevent unwanted diffusion of certain ions (and phase and conductivity degradation) under the electric field during electrochemical cycles [260][261][262][263][264].…”