La0.6Ca0.4Fe0.8Ni0.2O3−δ – Sm0.2Ce0.8O1.9 composites as symmetrical bi-electrodes for solid oxide fuel cells through infiltration and in-situ exsolution

A Review on Perovskite-Type LaFeO3 Based Electrodes for CO2 Reduction in Solid Oxide Electrolysis Cells: Current Understanding of Structure–Functional Property Relationships

“…The stability test over 100 h in the same conditions at 0.6 V (vs OCV) did not show any significant degradation or coke presence. Ding et al 122 tested La 0.6 Ca 0.4 Fe 0.8 Ni 0.2 O 3 (LCFN)−SDC composites obtained via both infiltration and mechanical mixing with further nanoparticles ex-solution. The presence of both bimetallic Fe−Ni particles with the size of 10−20 nm and GDC nanoparticles with the size around 0.45 μm was confirmed by both X-ray diffraction and scanning electron microscopy (Figure 15).…”

“…SEM images of (a) pure LCFN ceramic after calcination in air at 1200 °C and (b) LCFN ceramic after further thermal treatment in 10 mL/min H 2 at 800 °C for 10 h. Reprinted with permission from ref . Copyright 2017 Elsevier.…”

Recent advances, practical challenges, and perspectives of intermediate temperature solid oxide fuel cell cathodes

“…291 The infiltrated LCFN–SDC (70 : 30) composite cathode showed an ASR of 0.15 Ω cm 2 at 800 °C where the improvement was attributed to enhanced activity for surface oxygen dissociation and diffusion processes achieved due to the specific electrode architecture by the nano SDC decorated on the LCFN backbone. 292 A single perovskite oxide Sm 0.5 Sr 0.5 CoO 3− δ (SSC) with high ORR activity was combined with MIEC SmBaCo 2 O 5+ δ (SBC) to exhibit an ASR of 0.021 Ω cm 2 at 750 °C. 293…”

Nanoparticle Ex-solution for Supported Catalysts: Materials Design, Mechanism and Future Perspectives

“…(2) Narrow range of support material and according possible ex-solutes elements: The most commonly studied host oxide is a perovskite oxide (ABO 3 ); there have been relatively a few attempts to ex-solve nanoparticles from other functional oxides, such as fluorites, the Ruddlesden–Popper types, and others. Limited numbers of transition metals can be selected to ex-solve nanoparticles. For example, the transition metals of Fe, Co, Ni, and Cu have been widely investigated; ,,,− however, to the best of our knowledge, the element of Mo has never been reported in relation to the ex-solution process, even though the catalytic activity of Mo can be especially appealing for the dry reforming of methane To fully appreciate the benefit of ex-solution, the host oxide and supposed ex-solutes should make a homogeneous solid solution.…”

“…Limited numbers of transition metals can be selected to ex-solve nanoparticles. For example, the transition metals of Fe, Co, Ni, and Cu have been widely investigated; ,,,− however, to the best of our knowledge, the element of Mo has never been reported in relation to the ex-solution process, even though the catalytic activity of Mo can be especially appealing for the dry reforming of methane …”