Scalable synthetic method for IT-SOFCs compounds
Wain Martin, Aritza
Morán Ruiz, Aroa
Vidal García, Karmele
Larrañaga Varga, Aitor
Arriortua Marcaida, María Isabel
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Economically competitive SOFC systems appear ready for commercialization, but widespread market penetration will require a broad inventory of key starting materials and fabrication processes to enhance systems and reduce costs. These requirements are originated from the demands for large scale SOFC industrial production. For these reason, we have synthesized different parts of a fuel cell, on a large scale, by the glycine-nitrate combustion method. It have been synthesized interconnector protective coatings (MnCo1.9Fe0.1O4), contact layers (LaNi0.6Fe0.4O3), cathodes (La0.6Sr0.4FeO3), interlayers (Sm0.2Ce0.8O1.9), electrolytes (ZrO2)0.92(Y203)0.08 and anode (Ni0.3O-(ZrO2)0.92(Y203)0.08) materials, obtaining reproducible pure samples and amounts up to 12 g for each batch, being able to increase easily this amount to lots of hundred of grams. The obtained materials have been characterized compositionally by inductively coupled plasma atomic emission spectroscopy (ICP-AES) and X-ray fluorescence (XRF), structurally by X-ray diffraction (XRD) and microstructurally by scanning electron microscopy (SEM).