La2NiO4+δ infiltrated into gadolinium doped ceria as novel solid oxide fuel cell cathodes: Electrochemical performance and impedance modelling

High Performance LSC Infiltrated LSCF Oxygen Electrode for High Temperature Steam Electrolysis Application

“…There are three main advantages of surface modification of electrodes through infiltration, (a) it is an effective approach to enhance the electro-catalytic activity at low cost with high stability of electrode, (b) utilization of a wide variety of active materials that cannot be used in a conventional electrode fabrication process due to high reactivity with the other components of the SOC or high cost, (c) it allows production of nanosized and/or nano-structured electrodes thus creating higher surface areas of electro-catalytic active materials. Recently a lot of work has been published on the preparation of oxygen electrodes with several different MIEC materials using infiltration techniques, 17,[42][43][44][45][46][47][48][49] show improvement in the performance of the electrode due to enhancement of active reaction sites/electro-catalytic activity of the electrode.…”

Image analysis of the porous yttria-stabilized zirconia (YSZ) structure for a lanthanum ferrite-impregnated solid oxide fuel cell (SOFC) electrode

“…grains was not considered. The TPB is calculated If the median particle size of LSF, 55 nm is used, the number of particles on area-specific boundary will be 17.5±1.5) m -2 and, 25.5±1 m -2 and the TPB density will be 35±3 m -2 and 51±2 m -2 for the scaffolds from the U1 and U2 powder, respectively, since each LSF particle will produce 2 TPBs [42,43]. These values are very similar to the reported result of Zhan [44] The activation energy, Ea, of the Rs values are very close to each other and slightly lower than that of pure 8YSZ, 1.0 eV, implying the existence of the lateral resistance from the electrode.…”

A-site order–disorder in the NdBaMn2O5+δ SOFC electrode material monitored in situ by neutron diffraction under hydrogen flow

“…Indeed, NdBaMn2O6 oxygen electrodes shows similar performance as La3Ni2O7+δ and La4Ni3O10-δ electrodes 27 . However, cathode composition, microstructure and architecture for a given composition plays a very important role in improving the cathode performance La2NiO4+δ was infiltrated inside a CGO backbone 34 . Therefore, our future goal is to improve the cathode performance by improving the cathode microstructure, architecture and composition as well as to study the effect of sintering temperature on its performance.…”